How to get from St. Louis, MO to Phoenix, AZ

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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 2 available companies to find your perfect trip!
Flight is the cheapest and fastest way on this route
Transport type
Travel time
Cheapest price
Average price
Daily departures
Bus
30h 50m
£95
£135
4
Flight
3h 31m
£53
£276
33

What is the cheapest way to reach Phoenix, AZ from St. Louis, MO?

You can reach Phoenix, AZ with just £53 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.

Friday
from £91
Saturday
from £124
Sunday
from £53
Monday
from £78
Tuesday
Wednesday
from £66
Thursday
from £136

    Cheapest Flights Friday

  • Frontier Airlines
    3h 31m
    0
    12:07
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    14:38
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £91
  • Frontier Airlines
    6h 15m
    0
    13:16
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    18:31
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £130
  • United Airlines
    6h 55m
    0
    06:15
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:10
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £416
  • United Airlines
    7h 15m
    0
    08:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    14:15
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £416
  • Alaska Airlines
    13h 14m
    0
    07:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    19:14
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from £444
  • Cheapest Buses Friday

  • Greyhound US
    30h 50m
    0
    01:20
    St. Louis, MO
    Gateway Station
    07:10
    Phoenix, AZ
    Coach Station
    0
    Greyhound US
    Economy
    £95
  • Greyhound US
    39h 40m
    0
    16:30
    St. Louis, MO
    Gateway Station
    07:10
    Phoenix, AZ
    Coach Station
    0
    Greyhound US
    Economy
    £137
  • FlixBus
    47h 35m
    0
    16:00
    St. Louis, MO
    Gateway Station
    14:35
    Phoenix, AZ
    Coach Station
    0
    FlixBus
    Economy
    £184

    Cheapest Buses Saturday

  • Greyhound US
    30h 50m
    0
    01:20
    St. Louis, MO
    Gateway Station
    07:10
    Phoenix, AZ
    Coach Station
    0
    Greyhound US
    Economy
    £124
  • FlixBus
    47h 35m
    0
    16:00
    St. Louis, MO
    Gateway Station
    14:35
    Phoenix, AZ
    Coach Station
    0
    FlixBus
    Economy
    £124

    Cheapest Flights Sunday

  • Frontier Airlines
    22h 17m
    0
    21:14
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    18:31
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £53
  • Frontier Airlines
    12h 34m
    0
    21:14
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    08:48
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £78
  • Alaska Airlines
    14h 17m
    0
    07:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    20:17
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from £392
  • United Airlines
    6h 55m
    0
    06:15
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:10
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £419
  • United Airlines
    7h 2m
    0
    06:30
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:32
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £419

    Cheapest Flights Monday

  • Frontier Airlines
    9h 10m
    0
    13:16
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    21:26
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £78
  • Frontier Airlines
    6h 1m
    0
    19:43
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    00:44
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £82
  • Alaska Airlines
    13h 14m
    0
    07:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    19:14
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from £375
  • United Airlines
    6h 55m
    0
    06:15
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:10
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £419
  • United Airlines
    7h 2m
    0
    06:30
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:32
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £419

    Cheapest Flights Wednesday

  • Frontier Airlines
    13h 23m
    0
    19:43
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    08:06
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £66
  • Frontier Airlines
    28h 1m
    0
    15:30
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    18:31
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £100
  • Alaska Airlines
    13h 14m
    0
    07:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    19:14
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from £342
  • United Airlines
    8h 55m
    0
    06:15
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    14:10
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £393
  • United Airlines
    7h 26m
    0
    09:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    15:26
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £393

    Cheapest Buses Thursday

  • Greyhound US
    30h 50m
    0
    01:20
    St. Louis, MO
    Gateway Station
    07:10
    Phoenix, AZ
    Coach Station
    0
    Greyhound US
    Economy
    £136
  • FlixBus
    47h 35m
    0
    16:00
    St. Louis, MO
    Gateway Station
    14:35
    Phoenix, AZ
    Coach Station
    0
    FlixBus
    Economy
    £144

What are the fastest trips from St. Louis, MO to Phoenix, AZ?

You can get to Phoenix, AZ from St. Louis, MO in just 3h 31m 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.

Friday
from 3h 31m
Saturday
from 30h 50m
Sunday
from 6h 55m
Monday
from 6h 1m
Tuesday
Wednesday
from 7h 26m
Thursday
from 30h 50m

    Fastest Flights Friday

  • Frontier Airlines
    3h 31m
    0
    12:07
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    14:38
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £91
  • Frontier Airlines
    6h 15m
    0
    13:16
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    18:31
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £130
  • United Airlines
    6h 55m
    0
    06:15
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:10
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £416
  • United Airlines
    7h 15m
    0
    08:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    14:15
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £416
  • Alaska Airlines
    13h 14m
    0
    07:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    19:14
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from £444
  • Fastest Buses Friday

  • Greyhound US
    30h 50m
    0
    01:20
    St. Louis, MO
    Gateway Station
    07:10
    Phoenix, AZ
    Coach Station
    0
    Greyhound US
    Economy
    £95
  • Greyhound US
    39h 40m
    0
    16:30
    St. Louis, MO
    Gateway Station
    07:10
    Phoenix, AZ
    Coach Station
    0
    Greyhound US
    Economy
    £137
  • FlixBus
    47h 35m
    0
    16:00
    St. Louis, MO
    Gateway Station
    14:35
    Phoenix, AZ
    Coach Station
    0
    FlixBus
    Economy
    £184

    Fastest Buses Saturday

  • Greyhound US
    30h 50m
    0
    01:20
    St. Louis, MO
    Gateway Station
    07:10
    Phoenix, AZ
    Coach Station
    0
    Greyhound US
    Economy
    £124
  • FlixBus
    47h 35m
    0
    16:00
    St. Louis, MO
    Gateway Station
    14:35
    Phoenix, AZ
    Coach Station
    0
    FlixBus
    Economy
    £124

    Fastest Flights Sunday

  • United Airlines
    6h 55m
    0
    06:15
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:10
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £419
  • United Airlines
    7h 2m
    0
    06:30
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:32
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £419
  • Frontier Airlines
    12h 34m
    0
    21:14
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    08:48
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £78
  • Alaska Airlines
    14h 17m
    0
    07:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    20:17
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from £392
  • Frontier Airlines
    22h 17m
    0
    21:14
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    18:31
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £53

    Fastest Flights Monday

  • Frontier Airlines
    6h 1m
    0
    19:43
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    00:44
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £82
  • United Airlines
    6h 55m
    0
    06:15
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:10
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £419
  • United Airlines
    7h 2m
    0
    06:30
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    12:32
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £419
  • Frontier Airlines
    9h 10m
    0
    13:16
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    21:26
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £78
  • Alaska Airlines
    13h 14m
    0
    07:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    19:14
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from £375

    Fastest Flights Wednesday

  • United Airlines
    7h 26m
    0
    09:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    15:26
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £393
  • United Airlines
    8h 55m
    0
    06:15
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    14:10
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    United Airlines
    Economy
    from £393
  • Alaska Airlines
    13h 14m
    0
    07:00
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    19:14
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Alaska Airlines
    Economy
    from £342
  • Frontier Airlines
    13h 23m
    0
    19:43
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    08:06
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £66
  • Frontier Airlines
    28h 1m
    0
    15:30
    St. Louis Lambert Airport
    St. Louis Lambert Airport
    18:31
    Phoenix Sky Harbor Airport
    Phoenix Sky Harbor Airport
    0
    Frontier Airlines
    Economy
    from £100

    Fastest Buses Thursday

  • Greyhound US
    30h 50m
    0
    01:20
    St. Louis, MO
    Gateway Station
    07:10
    Phoenix, AZ
    Coach Station
    0
    Greyhound US
    Economy
    £136
  • FlixBus
    47h 35m
    0
    16:00
    St. Louis, MO
    Gateway Station
    14:35
    Phoenix, AZ
    Coach Station
    0
    FlixBus
    Economy
    £144
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 Gateway Station, Lindbergh @ Hackberry NB Bus Stop or Skinker Boulevard, while in Phoenix, AZ you will be arriving at Washington St & 4th Av Coach Stop, 7th St & Roosevelt St Coach Stop or 24th St & Jefferson St Station, 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 4 connections between 2 Bus and Flight 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 £53 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 3h 31m.

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, United Airlines and Greyhound US, 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 Sky Harbor 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, United Airlines and Greyhound US. Be sure to check their seat class offers and the amenities that they provide.

Bus companies: Greyhound US and FlixBus

Airlines: Frontier Airlines, United Airlines and Alaska Airlines

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 4 connections between Bus and Flight, 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 £53 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 3h 31m 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!

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