What is the best way to travel from St. Louis, MO to Phoenix, AZ?
Looking for a trip? Check and compare all the available Buses and Flights to Phoenix, AZ from St. Louis, MO. Look at different modes of transportation, search for the cheapest tickets, fastest rides and most popular stations, and see all 1 available companies to find your perfect trip!
What is the cheapest way to reach Phoenix, AZ from St. Louis, MO?
You can reach Phoenix, AZ with just £59 by taking a Flight from Frontier Airlines, but there are many more cheap offers: we have selected the best ones for you for the next few days here.
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 21/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 22/04/2026 12:40:00. 50 Economy ticket for £76 per person are available. Travel duration is 30h 0m
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Greyhound US29h 30m009:10St. Louis Lambert AirportSt. Louis Lambert Airport12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 09:10:00 to Coach Station, Phoenix, AZ (USA) arriving at 22/04/2026 12:40:00. 50 Economy ticket for £79 per person are available. Travel duration is 29h 30m
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Greyhound US39h 40m016:30St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 21/04/2026 16:30:00 to Coach Station, Phoenix, AZ (USA) arriving at 23/04/2026 06:10:00. 50 Economy ticket for £109 per person are available. Travel duration is 39h 40m
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Frontier Airlines8h 19m016:59St. Louis Lambert AirportSt. Louis Lambert Airport23:18Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 16:59:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 21/04/2026 23:18:00. 50 Economy ticket for £94 per person are available. Travel duration is 8h 19m
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Alaska Airlines10h 2m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:02Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 21/04/2026 15:02:00. 50 Economy ticket for £134 per person are available. Travel duration is 10h 2m
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Hawaiian Airlines10h 53m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:53Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Hawaiian Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 21/04/2026 15:53:00. 50 Economy ticket for £139 per person are available. Travel duration is 10h 53m
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Frontier Airlines21h 10m016:59St. Louis Lambert AirportSt. Louis Lambert Airport12:09Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 22/04/2026 12:09:00. 50 Economy ticket for £167 per person are available. Travel duration is 21h 10m
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United Airlines7h 9m006:00St. Louis Lambert AirportSt. Louis Lambert Airport11:09Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 06:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 21/04/2026 11:09:00. 50 Economy ticket for £168 per person are available. Travel duration is 7h 9m
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American Airlines11h 19m005:20St. Louis Lambert AirportSt. Louis Lambert Airport14:39Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from American Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 05:20:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 21/04/2026 14:39:00. 50 Economy ticket for £199 per person are available. Travel duration is 11h 19m
Cheapest Buses Tuesday
Cheapest Flights Tuesday
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Frontier Airlines8h 4m016:59St. Louis Lambert AirportSt. Louis Lambert Airport23:03Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 16:59:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 22/04/2026 23:03:00. 50 Economy ticket for £59 per person are available. Travel duration is 8h 4m
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Alaska Airlines10h 0m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:00Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 22/04/2026 15:00:00. 50 Economy ticket for £154 per person are available. Travel duration is 10h 0m
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Alaska Airlines9h 13m016:46St. Louis Lambert AirportSt. Louis Lambert Airport23:59Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 16:46:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 22/04/2026 23:59:00. 50 Economy ticket for £154 per person are available. Travel duration is 9h 13m
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United Airlines6h 4m018:05St. Louis Lambert AirportSt. Louis Lambert Airport22:09Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 18:05:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 22/04/2026 22:09:00. 50 Economy ticket for £165 per person are available. Travel duration is 6h 4m
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Frontier Airlines49h 28m016:59St. Louis Lambert AirportSt. Louis Lambert Airport16:27Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 24/04/2026 16:27:00. 50 Economy ticket for £228 per person are available. Travel duration is 49h 28m
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Frontier Airlines31h 5m016:59St. Louis Lambert AirportSt. Louis Lambert Airport22:04Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 23/04/2026 22:04:00. 50 Economy ticket for £252 per person are available. Travel duration is 31h 5m
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Greyhound US30h 50m001:20St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 22/04/2026 01:20:00 to Coach Station, Phoenix, AZ (USA) arriving at 23/04/2026 06:10:00. 50 Economy ticket for £76 per person are available. Travel duration is 30h 50m
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 22/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 23/04/2026 12:40:00. 50 Economy ticket for £76 per person are available. Travel duration is 30h 0m
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Greyhound US29h 30m009:10St. Louis Lambert AirportSt. Louis Lambert Airport12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 09:10:00 to Coach Station, Phoenix, AZ (USA) arriving at 23/04/2026 12:40:00. 50 Economy ticket for £79 per person are available. Travel duration is 29h 30m
Cheapest Flights Wednesday
Cheapest Buses Wednesday
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Greyhound US30h 50m001:20St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 23/04/2026 01:20:00 to Coach Station, Phoenix, AZ (USA) arriving at 24/04/2026 06:10:00. 50 Economy ticket for £76 per person are available. Travel duration is 30h 50m
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 23/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 24/04/2026 12:40:00. 50 Economy ticket for £78 per person are available. Travel duration is 30h 0m
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Greyhound US39h 40m016:30St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 23/04/2026 16:30:00 to Coach Station, Phoenix, AZ (USA) arriving at 25/04/2026 06:10:00. 50 Economy ticket for £109 per person are available. Travel duration is 39h 40m
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Frontier Airlines5h 36m020:06St. Louis Lambert AirportSt. Louis Lambert Airport23:42Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 23/04/2026 20:06:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 23/04/2026 23:42:00. 50 Economy ticket for £78 per person are available. Travel duration is 5h 36m
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Frontier Airlines39h 3m020:06St. Louis Lambert AirportSt. Louis Lambert Airport09:09Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 23/04/2026 20:06:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 25/04/2026 09:09:00. 50 Economy ticket for £153 per person are available. Travel duration is 39h 3m
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Allegiant Air41h 33m017:36MidAmerica St. Louis AirportMidAmerica St. Louis Airport09:09Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Allegiant Air goes from MidAmerica St. Louis Airport, MidAmerica St. Louis Airport (USA) at 23/04/2026 17:36:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 25/04/2026 09:09:00. 50 Economy ticket for £161 per person are available. Travel duration is 41h 33m
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Frontier Airlines36h 44m011:25St. Louis Lambert AirportSt. Louis Lambert Airport22:09Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 23/04/2026 11:25:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 24/04/2026 22:09:00. 50 Economy ticket for £164 per person are available. Travel duration is 36h 44m
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Allegiant Air10h 41m012:14MidAmerica St. Louis AirportMidAmerica St. Louis Airport20:55Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Allegiant Air goes from MidAmerica St. Louis Airport, MidAmerica St. Louis Airport (USA) at 23/04/2026 12:14:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 23/04/2026 20:55:00. 50 Economy ticket for £175 per person are available. Travel duration is 10h 41m
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Allegiant Air37h 26m010:43MidAmerica St. Louis AirportMidAmerica St. Louis Airport22:09Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Allegiant Air goes from MidAmerica St. Louis Airport, MidAmerica St. Louis Airport (USA) at 23/04/2026 10:43:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 24/04/2026 22:09:00. 50 Economy ticket for £205 per person are available. Travel duration is 37h 26m
Cheapest Buses Thursday
Cheapest Flights Thursday
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Frontier Airlines8h 19m016:59St. Louis Lambert AirportSt. Louis Lambert Airport23:18Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 16:59:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 24/04/2026 23:18:00. 50 Economy ticket for £61 per person are available. Travel duration is 8h 19m
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Frontier Airlines20h 54m021:58St. Louis Lambert AirportSt. Louis Lambert Airport16:52Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 21:58:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 25/04/2026 16:52:00. 50 Economy ticket for £64 per person are available. Travel duration is 20h 54m
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Frontier Airlines45h 6m020:06St. Louis Lambert AirportSt. Louis Lambert Airport15:12Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 20:06:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 26/04/2026 15:12:00. 50 Economy ticket for £161 per person are available. Travel duration is 45h 6m
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United Airlines6h 4m018:05St. Louis Lambert AirportSt. Louis Lambert Airport22:09Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 18:05:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 24/04/2026 22:09:00. 50 Economy ticket for £179 per person are available. Travel duration is 6h 4m
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United Airlines7h 26m007:45St. Louis Lambert AirportSt. Louis Lambert Airport13:11Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 07:45:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 24/04/2026 13:11:00. 50 Economy ticket for £183 per person are available. Travel duration is 7h 26m
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Frontier Airlines27h 21m016:59St. Louis Lambert AirportSt. Louis Lambert Airport18:20Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 25/04/2026 18:20:00. 50 Economy ticket for £192 per person are available. Travel duration is 27h 21m
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Greyhound US30h 50m001:20St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 24/04/2026 01:20:00 to Coach Station, Phoenix, AZ (USA) arriving at 25/04/2026 06:10:00. 50 Economy ticket for £81 per person are available. Travel duration is 30h 50m
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 24/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 25/04/2026 12:40:00. 50 Economy ticket for £84 per person are available. Travel duration is 30h 0m
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Greyhound US29h 30m009:10St. Louis Lambert AirportSt. Louis Lambert Airport12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 09:10:00 to Coach Station, Phoenix, AZ (USA) arriving at 25/04/2026 12:40:00. 50 Economy ticket for £84 per person are available. Travel duration is 29h 30m
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Greyhound US39h 40m016:30St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 24/04/2026 16:30:00 to Coach Station, Phoenix, AZ (USA) arriving at 26/04/2026 06:10:00. 50 Economy ticket for £112 per person are available. Travel duration is 39h 40m
Cheapest Flights Friday
Cheapest Buses Friday
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Frontier Airlines8h 2m016:16St. Louis Lambert AirportSt. Louis Lambert Airport22:18Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 16:16:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 25/04/2026 22:18:00. 50 Economy ticket for £59 per person are available. Travel duration is 8h 2m
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Frontier Airlines5h 25m020:17St. Louis Lambert AirportSt. Louis Lambert Airport23:42Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 20:17:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 25/04/2026 23:42:00. 50 Economy ticket for £59 per person are available. Travel duration is 5h 25m
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Frontier Airlines28h 10m020:17St. Louis Lambert AirportSt. Louis Lambert Airport22:27Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 20:17:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 26/04/2026 22:27:00. 50 Economy ticket for £124 per person are available. Travel duration is 28h 10m
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United Airlines7h 9m006:00St. Louis Lambert AirportSt. Louis Lambert Airport11:09Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 06:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 25/04/2026 11:09:00. 50 Economy ticket for £126 per person are available. Travel duration is 7h 9m
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United Airlines6h 50m006:30St. Louis Lambert AirportSt. Louis Lambert Airport11:20Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 06:30:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 25/04/2026 11:20:00. 50 Economy ticket for £126 per person are available. Travel duration is 6h 50m
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Frontier Airlines25h 57m020:17St. Louis Lambert AirportSt. Louis Lambert Airport20:14Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 20:17:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 26/04/2026 20:14:00. 50 Economy ticket for £146 per person are available. Travel duration is 25h 57m
Cheapest Flights Saturday
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Frontier Airlines8h 19m016:59St. Louis Lambert AirportSt. Louis Lambert Airport23:18Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 16:59:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 26/04/2026 23:18:00. 50 Economy ticket for £59 per person are available. Travel duration is 8h 19m
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Frontier Airlines36h 25m011:44St. Louis Lambert AirportSt. Louis Lambert Airport22:09Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 11:44:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 27/04/2026 22:09:00. 50 Economy ticket for £175 per person are available. Travel duration is 36h 25m
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United Airlines6h 4m018:05St. Louis Lambert AirportSt. Louis Lambert Airport22:09Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 18:05:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 26/04/2026 22:09:00. 50 Economy ticket for £187 per person are available. Travel duration is 6h 4m
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Frontier Airlines21h 32m016:59St. Louis Lambert AirportSt. Louis Lambert Airport12:31Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 27/04/2026 12:31:00. 50 Economy ticket for £199 per person are available. Travel duration is 21h 32m
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Allegiant Air38h 20m011:01MidAmerica St. Louis AirportMidAmerica St. Louis Airport23:21Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Allegiant Air goes from MidAmerica St. Louis Airport, MidAmerica St. Louis Airport (USA) at 26/04/2026 11:01:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 27/04/2026 23:21:00. 50 Economy ticket for £212 per person are available. Travel duration is 38h 20m
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Alaska Airlines10h 0m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:00Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 26/04/2026 15:00:00. 50 Economy ticket for £226 per person are available. Travel duration is 10h 0m
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Greyhound US30h 50m001:20St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 26/04/2026 01:20:00 to Coach Station, Phoenix, AZ (USA) arriving at 27/04/2026 06:10:00. 50 Economy ticket for £83 per person are available. Travel duration is 30h 50m
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 26/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 27/04/2026 12:40:00. 50 Economy ticket for £86 per person are available. Travel duration is 30h 0m
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Greyhound US29h 30m009:10St. Louis Lambert AirportSt. Louis Lambert Airport12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 09:10:00 to Coach Station, Phoenix, AZ (USA) arriving at 27/04/2026 12:40:00. 50 Economy ticket for £89 per person are available. Travel duration is 29h 30m
Cheapest Flights Sunday
Cheapest Buses Sunday
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Frontier Airlines5h 25m020:17St. Louis Lambert AirportSt. Louis Lambert Airport23:42Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 20:17:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 27/04/2026 23:42:00. 50 Economy ticket for £59 per person are available. Travel duration is 5h 25m
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Frontier Airlines46h 2m020:23St. Louis Lambert AirportSt. Louis Lambert Airport16:25Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 20:23:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 29/04/2026 16:25:00. 50 Economy ticket for £115 per person are available. Travel duration is 46h 2m
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Frontier Airlines45h 10m016:59St. Louis Lambert AirportSt. Louis Lambert Airport12:09Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 29/04/2026 12:09:00. 50 Economy ticket for £145 per person are available. Travel duration is 45h 10m
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United Airlines6h 50m006:30St. Louis Lambert AirportSt. Louis Lambert Airport11:20Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 06:30:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 27/04/2026 11:20:00. 50 Economy ticket for £164 per person are available. Travel duration is 6h 50m
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Allegiant Air52h 33m009:36MidAmerica St. Louis AirportMidAmerica St. Louis Airport12:09Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Allegiant Air goes from MidAmerica St. Louis Airport, MidAmerica St. Louis Airport (USA) at 27/04/2026 09:36:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 29/04/2026 12:09:00. 50 Economy ticket for £213 per person are available. Travel duration is 52h 33m
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Alaska Airlines10h 0m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:00Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 27/04/2026 15:00:00. 50 Economy ticket for £265 per person are available. Travel duration is 10h 0m
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Greyhound US30h 50m001:20St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 27/04/2026 01:20:00 to Coach Station, Phoenix, AZ (USA) arriving at 28/04/2026 06:10:00. 50 Economy ticket for £81 per person are available. Travel duration is 30h 50m
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 27/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 28/04/2026 12:40:00. 50 Economy ticket for £81 per person are available. Travel duration is 30h 0m
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Greyhound US29h 30m009:10St. Louis Lambert AirportSt. Louis Lambert Airport12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 09:10:00 to Coach Station, Phoenix, AZ (USA) arriving at 28/04/2026 12:40:00. 50 Economy ticket for £84 per person are available. Travel duration is 29h 30m
Cheapest Flights Monday
Cheapest Buses Monday
What are the fastest trips from St. Louis, MO to Phoenix, AZ?
You can get to Phoenix, AZ from St. Louis, MO in just 5h 25m with a Flight from Frontier Airlines. But this is just one option, click on any of the offers below to compare it with the other available modes of transportations.
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United Airlines7h 9m006:00St. Louis Lambert AirportSt. Louis Lambert Airport11:09Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 06:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 21/04/2026 11:09:00. 50 Economy ticket for £168 per person are available. Travel duration is 7h 9m
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Frontier Airlines8h 19m016:59St. Louis Lambert AirportSt. Louis Lambert Airport23:18Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 16:59:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 21/04/2026 23:18:00. 50 Economy ticket for £94 per person are available. Travel duration is 8h 19m
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Alaska Airlines10h 2m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:02Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 21/04/2026 15:02:00. 50 Economy ticket for £134 per person are available. Travel duration is 10h 2m
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Hawaiian Airlines10h 53m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:53Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Hawaiian Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 21/04/2026 15:53:00. 50 Economy ticket for £139 per person are available. Travel duration is 10h 53m
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American Airlines11h 19m005:20St. Louis Lambert AirportSt. Louis Lambert Airport14:39Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from American Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 05:20:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 21/04/2026 14:39:00. 50 Economy ticket for £199 per person are available. Travel duration is 11h 19m
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Frontier Airlines21h 10m016:59St. Louis Lambert AirportSt. Louis Lambert Airport12:09Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 22/04/2026 12:09:00. 50 Economy ticket for £167 per person are available. Travel duration is 21h 10m
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Greyhound US29h 30m009:10St. Louis Lambert AirportSt. Louis Lambert Airport12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 21/04/2026 09:10:00 to Coach Station, Phoenix, AZ (USA) arriving at 22/04/2026 12:40:00. 50 Economy ticket for £79 per person are available. Travel duration is 29h 30m
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 21/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 22/04/2026 12:40:00. 50 Economy ticket for £76 per person are available. Travel duration is 30h 0m
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Greyhound US39h 40m016:30St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 21/04/2026 16:30:00 to Coach Station, Phoenix, AZ (USA) arriving at 23/04/2026 06:10:00. 50 Economy ticket for £109 per person are available. Travel duration is 39h 40m
Fastest Flights Tuesday
Fastest Buses Tuesday
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United Airlines6h 4m018:05St. Louis Lambert AirportSt. Louis Lambert Airport22:09Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 18:05:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 22/04/2026 22:09:00. 50 Economy ticket for £165 per person are available. Travel duration is 6h 4m
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Frontier Airlines8h 4m016:59St. Louis Lambert AirportSt. Louis Lambert Airport23:03Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 16:59:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 22/04/2026 23:03:00. 50 Economy ticket for £59 per person are available. Travel duration is 8h 4m
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Alaska Airlines9h 13m016:46St. Louis Lambert AirportSt. Louis Lambert Airport23:59Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 16:46:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 22/04/2026 23:59:00. 50 Economy ticket for £154 per person are available. Travel duration is 9h 13m
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Alaska Airlines10h 0m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:00Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 22/04/2026 15:00:00. 50 Economy ticket for £154 per person are available. Travel duration is 10h 0m
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Frontier Airlines25h 2m016:59St. Louis Lambert AirportSt. Louis Lambert Airport16:01Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 23/04/2026 16:01:00. 50 Economy ticket for £277 per person are available. Travel duration is 25h 2m
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Frontier Airlines31h 5m016:59St. Louis Lambert AirportSt. Louis Lambert Airport22:04Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 23/04/2026 22:04:00. 50 Economy ticket for £252 per person are available. Travel duration is 31h 5m
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Greyhound US29h 30m009:10St. Louis Lambert AirportSt. Louis Lambert Airport12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 22/04/2026 09:10:00 to Coach Station, Phoenix, AZ (USA) arriving at 23/04/2026 12:40:00. 50 Economy ticket for £79 per person are available. Travel duration is 29h 30m
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 22/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 23/04/2026 12:40:00. 50 Economy ticket for £76 per person are available. Travel duration is 30h 0m
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Greyhound US30h 50m001:20St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 22/04/2026 01:20:00 to Coach Station, Phoenix, AZ (USA) arriving at 23/04/2026 06:10:00. 50 Economy ticket for £76 per person are available. Travel duration is 30h 50m
Fastest Flights Wednesday
Fastest Buses Wednesday
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Frontier Airlines5h 36m020:06St. Louis Lambert AirportSt. Louis Lambert Airport23:42Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 23/04/2026 20:06:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 23/04/2026 23:42:00. 50 Economy ticket for £78 per person are available. Travel duration is 5h 36m
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United Airlines6h 4m018:05St. Louis Lambert AirportSt. Louis Lambert Airport22:09Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 23/04/2026 18:05:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 23/04/2026 22:09:00. 50 Economy ticket for £209 per person are available. Travel duration is 6h 4m
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Alaska Airlines9h 13m016:46St. Louis Lambert AirportSt. Louis Lambert Airport23:59Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 23/04/2026 16:46:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 23/04/2026 23:59:00. 50 Economy ticket for £250 per person are available. Travel duration is 9h 13m
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Allegiant Air10h 41m012:14MidAmerica St. Louis AirportMidAmerica St. Louis Airport20:55Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Allegiant Air goes from MidAmerica St. Louis Airport, MidAmerica St. Louis Airport (USA) at 23/04/2026 12:14:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 23/04/2026 20:55:00. 50 Economy ticket for £175 per person are available. Travel duration is 10h 41m
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American Airlines12h 4m012:27St. Louis Lambert AirportSt. Louis Lambert Airport22:31Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from American Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 23/04/2026 12:27:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 23/04/2026 22:31:00. 50 Economy ticket for £234 per person are available. Travel duration is 12h 4m
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Frontier Airlines36h 44m011:25St. Louis Lambert AirportSt. Louis Lambert Airport22:09Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 23/04/2026 11:25:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 24/04/2026 22:09:00. 50 Economy ticket for £164 per person are available. Travel duration is 36h 44m
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 23/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 24/04/2026 12:40:00. 50 Economy ticket for £78 per person are available. Travel duration is 30h 0m
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Greyhound US30h 50m001:20St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 23/04/2026 01:20:00 to Coach Station, Phoenix, AZ (USA) arriving at 24/04/2026 06:10:00. 50 Economy ticket for £76 per person are available. Travel duration is 30h 50m
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Greyhound US39h 40m016:30St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 23/04/2026 16:30:00 to Coach Station, Phoenix, AZ (USA) arriving at 25/04/2026 06:10:00. 50 Economy ticket for £109 per person are available. Travel duration is 39h 40m
Fastest Flights Thursday
Fastest Buses Thursday
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United Airlines6h 4m018:05St. Louis Lambert AirportSt. Louis Lambert Airport22:09Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 18:05:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 24/04/2026 22:09:00. 50 Economy ticket for £179 per person are available. Travel duration is 6h 4m
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United Airlines7h 26m007:45St. Louis Lambert AirportSt. Louis Lambert Airport13:11Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 07:45:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 24/04/2026 13:11:00. 50 Economy ticket for £183 per person are available. Travel duration is 7h 26m
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Frontier Airlines8h 19m016:59St. Louis Lambert AirportSt. Louis Lambert Airport23:18Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 16:59:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 24/04/2026 23:18:00. 50 Economy ticket for £61 per person are available. Travel duration is 8h 19m
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Alaska Airlines10h 0m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:00Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 24/04/2026 15:00:00. 50 Economy ticket for £238 per person are available. Travel duration is 10h 0m
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Frontier Airlines20h 54m021:58St. Louis Lambert AirportSt. Louis Lambert Airport16:52Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 21:58:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 25/04/2026 16:52:00. 50 Economy ticket for £64 per person are available. Travel duration is 20h 54m
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Frontier Airlines27h 21m016:59St. Louis Lambert AirportSt. Louis Lambert Airport18:20Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 25/04/2026 18:20:00. 50 Economy ticket for £192 per person are available. Travel duration is 27h 21m
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Greyhound US29h 30m009:10St. Louis Lambert AirportSt. Louis Lambert Airport12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 24/04/2026 09:10:00 to Coach Station, Phoenix, AZ (USA) arriving at 25/04/2026 12:40:00. 50 Economy ticket for £84 per person are available. Travel duration is 29h 30m
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 24/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 25/04/2026 12:40:00. 50 Economy ticket for £84 per person are available. Travel duration is 30h 0m
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Greyhound US30h 50m001:20St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 24/04/2026 01:20:00 to Coach Station, Phoenix, AZ (USA) arriving at 25/04/2026 06:10:00. 50 Economy ticket for £81 per person are available. Travel duration is 30h 50m
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Greyhound US39h 40m016:30St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 24/04/2026 16:30:00 to Coach Station, Phoenix, AZ (USA) arriving at 26/04/2026 06:10:00. 50 Economy ticket for £112 per person are available. Travel duration is 39h 40m
Fastest Flights Friday
Fastest Buses Friday
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Frontier Airlines5h 25m020:17St. Louis Lambert AirportSt. Louis Lambert Airport23:42Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 20:17:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 25/04/2026 23:42:00. 50 Economy ticket for £59 per person are available. Travel duration is 5h 25m
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United Airlines6h 50m006:30St. Louis Lambert AirportSt. Louis Lambert Airport11:20Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 06:30:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 25/04/2026 11:20:00. 50 Economy ticket for £126 per person are available. Travel duration is 6h 50m
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United Airlines7h 9m006:00St. Louis Lambert AirportSt. Louis Lambert Airport11:09Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 06:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 25/04/2026 11:09:00. 50 Economy ticket for £126 per person are available. Travel duration is 7h 9m
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Frontier Airlines8h 2m016:16St. Louis Lambert AirportSt. Louis Lambert Airport22:18Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 16:16:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 25/04/2026 22:18:00. 50 Economy ticket for £59 per person are available. Travel duration is 8h 2m
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Alaska Airlines10h 0m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:00Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 25/04/2026 15:00:00. 50 Economy ticket for £297 per person are available. Travel duration is 10h 0m
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Frontier Airlines25h 57m020:17St. Louis Lambert AirportSt. Louis Lambert Airport20:14Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 25/04/2026 20:17:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 26/04/2026 20:14:00. 50 Economy ticket for £146 per person are available. Travel duration is 25h 57m
Fastest Flights Saturday
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United Airlines6h 4m018:05St. Louis Lambert AirportSt. Louis Lambert Airport22:09Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 18:05:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 26/04/2026 22:09:00. 50 Economy ticket for £187 per person are available. Travel duration is 6h 4m
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Frontier Airlines8h 19m016:59St. Louis Lambert AirportSt. Louis Lambert Airport23:18Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 16:59:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 26/04/2026 23:18:00. 50 Economy ticket for £59 per person are available. Travel duration is 8h 19m
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Alaska Airlines10h 0m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:00Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 26/04/2026 15:00:00. 50 Economy ticket for £226 per person are available. Travel duration is 10h 0m
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Allegiant Air10h 11m012:14MidAmerica St. Louis AirportMidAmerica St. Louis Airport20:25Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Allegiant Air goes from MidAmerica St. Louis Airport, MidAmerica St. Louis Airport (USA) at 26/04/2026 12:14:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 26/04/2026 20:25:00. 50 Economy ticket for £286 per person are available. Travel duration is 10h 11m
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American Airlines11h 10m005:51St. Louis Lambert AirportSt. Louis Lambert Airport15:01Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from American Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 05:51:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 26/04/2026 15:01:00. 50 Economy ticket for £457 per person are available. Travel duration is 11h 10m
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Frontier Airlines21h 32m016:59St. Louis Lambert AirportSt. Louis Lambert Airport12:31Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 27/04/2026 12:31:00. 50 Economy ticket for £199 per person are available. Travel duration is 21h 32m
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Greyhound US29h 30m009:10St. Louis Lambert AirportSt. Louis Lambert Airport12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 26/04/2026 09:10:00 to Coach Station, Phoenix, AZ (USA) arriving at 27/04/2026 12:40:00. 50 Economy ticket for £89 per person are available. Travel duration is 29h 30m
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 26/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 27/04/2026 12:40:00. 50 Economy ticket for £86 per person are available. Travel duration is 30h 0m
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Greyhound US30h 50m001:20St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 26/04/2026 01:20:00 to Coach Station, Phoenix, AZ (USA) arriving at 27/04/2026 06:10:00. 50 Economy ticket for £83 per person are available. Travel duration is 30h 50m
Fastest Flights Sunday
Fastest Buses Sunday
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Frontier Airlines5h 25m020:17St. Louis Lambert AirportSt. Louis Lambert Airport23:42Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 20:17:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 27/04/2026 23:42:00. 50 Economy ticket for £59 per person are available. Travel duration is 5h 25m
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United Airlines6h 50m006:30St. Louis Lambert AirportSt. Louis Lambert Airport11:20Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from United Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 06:30:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 27/04/2026 11:20:00. 50 Economy ticket for £164 per person are available. Travel duration is 6h 50m
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Skyscanner8h 20m008:30St. Louis Lambert AirportSt. Louis Lambert Airport14:50Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Skyscanner goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 08:30:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 27/04/2026 14:50:00. 50 Economy ticket for £406 per person are available. Travel duration is 8h 20m
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Alaska Airlines10h 0m007:00St. Louis Lambert AirportSt. Louis Lambert Airport15:00Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from Alaska Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 07:00:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 27/04/2026 15:00:00. 50 Economy ticket for £265 per person are available. Travel duration is 10h 0m
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American Airlines11h 32m012:27St. Louis Lambert AirportSt. Louis Lambert Airport21:59Phoenix Sky Harbor AirportPhoenix Sky Harbor Airport0EconomyA Flight from American Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 12:27:00 to Phoenix Sky Harbor Airport, Phoenix Sky Harbor Airport (USA) arriving at 27/04/2026 21:59:00. 50 Economy ticket for £437 per person are available. Travel duration is 11h 32m
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Frontier Airlines45h 10m016:59St. Louis Lambert AirportSt. Louis Lambert Airport12:09Phoenix-Mesa Gateway AirportBus Stop0EconomyA Flight from Frontier Airlines goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 16:59:00 to Bus Stop, Phoenix-Mesa Gateway Airport (USA) arriving at 29/04/2026 12:09:00. 50 Economy ticket for £145 per person are available. Travel duration is 45h 10m
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Greyhound US29h 30m009:10St. Louis Lambert AirportSt. Louis Lambert Airport12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from St. Louis Lambert Airport, St. Louis Lambert Airport (USA) at 27/04/2026 09:10:00 to Coach Station, Phoenix, AZ (USA) arriving at 28/04/2026 12:40:00. 50 Economy ticket for £84 per person are available. Travel duration is 29h 30m
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Greyhound US30h 0m008:40St. Louis, MOGateway Station12:40Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 27/04/2026 08:40:00 to Coach Station, Phoenix, AZ (USA) arriving at 28/04/2026 12:40:00. 50 Economy ticket for £81 per person are available. Travel duration is 30h 0m
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Greyhound US30h 50m001:20St. Louis, MOGateway Station06:10Phoenix, AZCoach Station0EconomyA Bus from Greyhound US goes from Gateway Station, St. Louis, MO (USA) at 27/04/2026 01:20:00 to Coach Station, Phoenix, AZ (USA) arriving at 28/04/2026 06:10:00. 50 Economy ticket for £81 per person are available. Travel duration is 30h 50m
Fastest Flights Monday
Fastest Buses Monday
Here you will find all operators and timetables for a
Bus from St. Louis, MO to Phoenix, AZ
What are the most popular stations in St. Louis, MO and Phoenix, AZ?
In St. Louis, MO, you will usually depart from Skinker Boulevard, Lindbergh @ Hackberry NB Bus Stop or Gateway Station, while in Phoenix, AZ you will be arriving at 24th St & Jefferson St Station, 7th St & Roosevelt St Coach Stop or Washington St & 4th Av Coach Stop, but there are many more stops to explore in both locations.
How do I decide? Some tips and tricks from our experience
Are you having trouble deciding on how to get to Phoenix, AZ from St. Louis, MO? With 13 connections between 1 Flight and Bus operators, it can be difficult to find the one ride that will make you happy. But we have some tips that can help you make the best informed decision. First of all, the best trip is always the one that meets all your needs, so make a list of all the things that you want from this journey and look for something that will satisfy all of them. Here we will go through some of the factors mostly commonly taken into consideration.
Look for the lowest price
Ticket price is usually the main concern: even if you can afford to pay more, why do it if there are cheaper options? Saving on the trip means that you can spend more on the vacation itself! Between St. Louis, MO and Phoenix, AZ, you can pay as low as £59 with a Flight from Frontier Airlines.Travel duration
Time is also an important factor. An earlier departure may allow you to see a beautiful sunset or relax before an important event. And remember, time is money, so paying more for a shorter trip may be well worth it. For longer distances, flights are without doubt the best options, but be mindful of airport times and possible delays: a high-speed train may end up cheaper and faster! Here the quicker option is definitely the Flight from Frontier Airlines: you will get to Phoenix, AZ in just 5h 25m.Comfort makes all the difference
You should always take into account what your personal travelling preferences are. Is one hand luggage enough, or are you trasporting more? Would you like to have a snack during the journey? Can you relax in a busy compartment, or do you need space for yourself? Even among the same mode of transportation, different companies will offer you varying levels of comfort and amenities. The main operators connecting St. Louis, MO and Phoenix, AZ are Frontier Airlines, Greyhound US and Allegiant Air, but be sure to check what they have to offer!Save money with deals, and always compare
One last tip? Even if you live in St. Louis, MO and Phoenix, AZ is your only destination, it may be wise to check the offers from and to nearby cities or, if you are flyng, nearby airports. Check the trips from Sauget, IL or to Phoenix Sky Harbor Airport, and look at flights from St. Louis Lambert Airport, and landing at Phoenix-Deer Valley Airport. Comparing different routes may allow you to find deals or promotions you were not aware of. Consider also signing up to CheckMyBus to see even more exclusive promotions!Which companies offer a trip from St. Louis, MO to Phoenix, AZ?
The most popular companies between St. Louis, MO and Phoenix, AZ, are Frontier Airlines, Greyhound US and Allegiant Air. Be sure to check their seat class offers and the amenities that they provide.
Bus companies: Greyhound US
Airlines: Frontier Airlines, Allegiant Air, United Airlines and 4 more.
All you need to know when you travel from St. Louis, MO to Phoenix, AZ
Check all information on comfort and services on all modes of transports from St. Louis, MO to Phoenix, AZ. See which seat classes are available, and what amenities are other advantages offered by the operators on your journey.
FAQs about the trip from St. Louis, MO to Phoenix, AZ
How can I reach Phoenix, AZ from St. Louis, MO?
Every day, there are on average 13 connections between Flight and Bus, with which you can get to Phoenix, AZ from St. Louis, MO.
How far is Phoenix, AZ from St. Louis, MO?
The distance between St. Louis, MO and Phoenix, AZ is 2,043.3 km.
What is the most ecofriendly mode of transport between St. Louis, MO and Phoenix, AZ?
Trains and buses are by far the greenest options, with trains surpassing buses on longer routes. Planes will always be the worst polluters, especially in shorter flights, were the emissions from the takeoff and landing are less offset by the distance.
On this particular route, a bus will emit, per person, a total of 55 kgs of CO2, a train 72 kgs, a car 347 kgs, and a flight 503 kgs.
What is the cheapest mode of transport from St. Louis, MO to Phoenix, AZ?
You can get to Phoenix, AZ with just £59 by taking a Flight from Frontier Airlines.
What is the fastest way to get from St. Louis, MO to Phoenix, AZ?
While a plane is travelling fastest boarding and transfer to airport consumes a lot of time. Usually, high speed trains are better than flights if pure train travel time is below 4 hours. For this particular route, you can get to Phoenix, AZ in just 5h 25m with a Flight from Frontier Airlines.
More routes to St. Louis, MO and to Phoenix, AZ
Looking for more options? Here you can see the most popular routes to St. Louis, MO and to Phoenix, AZ. Simply click on a connection, and you’ll find all the details about the route!
- Trips to St. Louis, MO
- Atlanta, GA to St. Louis, MO
- Dallas to St. Louis, MO
- Houston to St. Louis, MO
- Mexico City to St. Louis, MO
- Monterrey, NL to St. Louis, MO
- Trips to Phoenix, AZ
- Aguascalientes to Phoenix, AZ
- Albuquerque, NM to Phoenix, AZ
- Bakersfield, CA to Phoenix, AZ
- Calexico, CA to Phoenix, AZ
- Chihuahua to Phoenix, AZ
- Culiacán Rosales to Phoenix, AZ
- Denver to Phoenix, AZ
- Durango, DG to Phoenix, AZ
- El Paso, TX to Phoenix, AZ
- Fresno, CA to Phoenix, AZ
- Greenville, SC to Phoenix, AZ
- Guadalajara, JC to Phoenix, AZ
- Hermosillo to Phoenix, AZ
- Las Vegas to Phoenix, AZ
- Los Angeles to Phoenix, AZ
- Monterrey, NL to Phoenix, AZ
- Salt Lake City, UT to Phoenix, AZ
- Saltillo to Phoenix, AZ
- San Diego to Phoenix, AZ
- San Jose, CA to Phoenix, AZ
- Tepic to Phoenix, AZ
- Tijuana Airport to Phoenix, AZ
- Tijuana, BC to Phoenix, AZ
