What is the best way to travel from Southampton to Cardiff?
Looking for a trip? Check and compare all the available Trains and Buses to Cardiff from Southampton. Look at different modes of transportation, search for the cheapest tickets, fastest rides and most popular stations, and see all 5 available companies to find your perfect trip!
What is the cheapest way to reach Cardiff from Southampton?
You can reach Cardiff with just £12 by taking a Train from Great Western Railway (GWR), 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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FlixBus7h 50m010:45SouthamptonCoach Station18:35CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 12/02/2026 10:45:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 12/02/2026 18:35:00. 50 Economy ticket for £22 per person are available. Travel duration is 7h 50m
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FlixBus7h 35m011:00SouthamptonUniversity18:35CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 12/02/2026 11:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 12/02/2026 18:35:00. 50 Economy ticket for £22 per person are available. Travel duration is 7h 35m
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FlixBus7h 0m007:15SouthamptonCoach Station14:15CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 12/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 12/02/2026 14:15:00. 50 Economy ticket for £30 per person are available. Travel duration is 7h 0m
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 12/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 13/02/2026 01:40:00. 50 Economy ticket for £37 per person are available. Travel duration is 5h 10m
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National Express6h 10m016:30SouthamptonCoach Station22:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 12/02/2026 16:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 12/02/2026 22:40:00. 50 Economy ticket for £44 per person are available. Travel duration is 6h 10m
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Great Western Railway (GWR)2h 42m008:10SouthamptonCentral Station10:52CardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 12/02/2026 08:10:00 to Central Station, Cardiff (United Kingdom) arriving at 12/02/2026 10:52:00. 50 Economy ticket for £55 per person are available. Travel duration is 2h 42m
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Great Western Railway (GWR)2h 35m009:11SouthamptonCentral Station11:46CardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 12/02/2026 09:11:00 to Central Station, Cardiff (United Kingdom) arriving at 12/02/2026 11:46:00. 50 Economy ticket for £55 per person are available. Travel duration is 2h 35m
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South Western Railway3h 7m009:30SouthamptonCentral Station12:37CardiffCentral Station0EconomyA Train from South Western Railway goes from Central Station, Southampton (United Kingdom) at 12/02/2026 09:30:00 to Central Station, Cardiff (United Kingdom) arriving at 12/02/2026 12:37:00. 50 Economy ticket for £110 per person are available. Travel duration is 3h 7m
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CrossCountry2h 25m009:15SouthamptonCentral Station11:40CardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 12/02/2026 09:15:00 to Central Station, Cardiff (United Kingdom) arriving at 12/02/2026 11:40:00. 50 Economy ticket for £147 per person are available. Travel duration is 2h 25m
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CrossCountry2h 52m008:15SouthamptonCentral Station11:07CardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 12/02/2026 08:15:00 to Central Station, Cardiff (United Kingdom) arriving at 12/02/2026 11:07:00. 50 Economy ticket for £159 per person are available. Travel duration is 2h 52m
Cheapest Buses Thursday
Cheapest Trains Thursday
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FlixBus7h 20m017:00SouthamptonCoach Station00:20CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 13/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 14/02/2026 00:20:00. 50 Economy ticket for £18 per person are available. Travel duration is 7h 20m
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FlixBus7h 5m017:15SouthamptonUniversity00:20CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 13/02/2026 17:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 14/02/2026 00:20:00. 50 Economy ticket for £18 per person are available. Travel duration is 7h 5m
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FlixBus7h 0m007:15SouthamptonCoach Station14:15CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 13/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 13/02/2026 14:15:00. 50 Economy ticket for £20 per person are available. Travel duration is 7h 0m
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 13/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 14/02/2026 01:40:00. 50 Economy ticket for £34 per person are available. Travel duration is 5h 10m
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National Express6h 15m010:45SouthamptonCoach Station17:00CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 13/02/2026 10:45:00 to Coach Station, Cardiff (United Kingdom) arriving at 13/02/2026 17:00:00. 50 Economy ticket for £40 per person are available. Travel duration is 6h 15m
Cheapest Buses Friday
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FlixBus7h 20m017:00SouthamptonCoach Station00:20CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 14/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 15/02/2026 00:20:00. 50 Economy ticket for £21 per person are available. Travel duration is 7h 20m
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FlixBus7h 5m017:15SouthamptonUniversity00:20CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 14/02/2026 17:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 15/02/2026 00:20:00. 50 Economy ticket for £21 per person are available. Travel duration is 7h 5m
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 14/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 15/02/2026 01:40:00. 50 Economy ticket for £34 per person are available. Travel duration is 5h 10m
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National Express5h 10m017:30SouthamptonCoach Station22:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 14/02/2026 17:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 14/02/2026 22:40:00. 50 Economy ticket for £37 per person are available. Travel duration is 5h 10m
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FlixBus7h 0m007:15SouthamptonCoach Station14:15CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 14/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 14/02/2026 14:15:00. 50 Economy ticket for £39 per person are available. Travel duration is 7h 0m
Cheapest Buses Saturday
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FlixBus6h 15m017:00SouthamptonCoach Station23:15CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 15/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 15/02/2026 23:15:00. 50 Economy ticket for £26 per person are available. Travel duration is 6h 15m
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FlixBus6h 0m017:15SouthamptonUniversity23:15CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 15/02/2026 17:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 15/02/2026 23:15:00. 50 Economy ticket for £26 per person are available. Travel duration is 6h 0m
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FlixBus7h 50m010:45SouthamptonCoach Station18:35CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 15/02/2026 10:45:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 15/02/2026 18:35:00. 50 Economy ticket for £29 per person are available. Travel duration is 7h 50m
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 15/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 16/02/2026 01:40:00. 50 Economy ticket for £32 per person are available. Travel duration is 5h 10m
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National Express5h 10m017:30SouthamptonCoach Station22:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 15/02/2026 17:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 15/02/2026 22:40:00. 50 Economy ticket for £42 per person are available. Travel duration is 5h 10m
Cheapest Buses Sunday
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FlixBus9h 15m007:15SouthamptonCoach Station16:30CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 16/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 16/02/2026 16:30:00. 50 Economy ticket for £19 per person are available. Travel duration is 9h 15m
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FlixBus7h 25m017:00SouthamptonCoach Station00:25CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 16/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 17/02/2026 00:25:00. 50 Economy ticket for £19 per person are available. Travel duration is 7h 25m
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FlixBus7h 10m017:15SouthamptonUniversity00:25CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 16/02/2026 17:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 17/02/2026 00:25:00. 50 Economy ticket for £19 per person are available. Travel duration is 7h 10m
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 16/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 17/02/2026 01:40:00. 50 Economy ticket for £36 per person are available. Travel duration is 5h 10m
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National Express5h 10m017:30SouthamptonCoach Station22:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 16/02/2026 17:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 16/02/2026 22:40:00. 50 Economy ticket for £43 per person are available. Travel duration is 5h 10m
Cheapest Buses Monday
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FlixBus9h 15m007:15SouthamptonCoach Station16:30CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 17/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 17/02/2026 16:30:00. 50 Economy ticket for £15 per person are available. Travel duration is 9h 15m
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FlixBus7h 50m010:45SouthamptonCoach Station18:35CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 17/02/2026 10:45:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 17/02/2026 18:35:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 50m
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FlixBus7h 25m017:00SouthamptonCoach Station00:25CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 17/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 18/02/2026 00:25:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 25m
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 17/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 18/02/2026 01:40:00. 50 Economy ticket for £31 per person are available. Travel duration is 5h 10m
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National Express6h 25m012:15SouthamptonCoach Station18:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 17/02/2026 12:15:00 to Coach Station, Cardiff (United Kingdom) arriving at 17/02/2026 18:40:00. 50 Economy ticket for £37 per person are available. Travel duration is 6h 25m
Cheapest Buses Tuesday
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Great Western Railway (GWR)2h 42m008:10SouthamptonCentral Station10:52CardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 18/02/2026 08:10:00 to Central Station, Cardiff (United Kingdom) arriving at 18/02/2026 10:52:00. 50 Economy ticket for £12 per person are available. Travel duration is 2h 42m
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Great Western Railway (GWR)2h 35m009:11SouthamptonCentral Station11:46CardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 18/02/2026 09:11:00 to Central Station, Cardiff (United Kingdom) arriving at 18/02/2026 11:46:00. 50 Economy ticket for £12 per person are available. Travel duration is 2h 35m
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South Western Railway3h 7m009:30SouthamptonCentral Station12:37CardiffCentral Station0EconomyA Train from South Western Railway goes from Central Station, Southampton (United Kingdom) at 18/02/2026 09:30:00 to Central Station, Cardiff (United Kingdom) arriving at 18/02/2026 12:37:00. 50 Economy ticket for £111 per person are available. Travel duration is 3h 7m
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CrossCountry2h 25m009:15SouthamptonCentral Station11:40CardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 18/02/2026 09:15:00 to Central Station, Cardiff (United Kingdom) arriving at 18/02/2026 11:40:00. 50 Economy ticket for £148 per person are available. Travel duration is 2h 25m
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CrossCountry2h 55m008:15SouthamptonCentral Station11:10CardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 18/02/2026 08:15:00 to Central Station, Cardiff (United Kingdom) arriving at 18/02/2026 11:10:00. 50 Economy ticket for £160 per person are available. Travel duration is 2h 55m
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FlixBus9h 15m007:15SouthamptonCoach Station16:30CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 18/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 18/02/2026 16:30:00. 50 Economy ticket for £19 per person are available. Travel duration is 9h 15m
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FlixBus7h 25m017:00SouthamptonCoach Station00:25CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 18/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 19/02/2026 00:25:00. 50 Economy ticket for £19 per person are available. Travel duration is 7h 25m
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FlixBus7h 10m017:15SouthamptonUniversity00:25CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 18/02/2026 17:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 19/02/2026 00:25:00. 50 Economy ticket for £19 per person are available. Travel duration is 7h 10m
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 18/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 19/02/2026 01:40:00. 50 Economy ticket for £36 per person are available. Travel duration is 5h 10m
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National Express6h 10m016:30SouthamptonCoach Station22:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 18/02/2026 16:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 18/02/2026 22:40:00. 50 Economy ticket for £39 per person are available. Travel duration is 6h 10m
Cheapest Trains Wednesday
Cheapest Buses Wednesday
What are the fastest trips from Southampton to Cardiff?
You can get to Cardiff from Southampton in just 2h 25m with a Train from CrossCountry. 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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CrossCountry2h 25m009:15SouthamptonCentral Station11:40CardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 12/02/2026 09:15:00 to Central Station, Cardiff (United Kingdom) arriving at 12/02/2026 11:40:00. 50 Economy ticket for £147 per person are available. Travel duration is 2h 25m
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Great Western Railway (GWR)2h 35m009:11SouthamptonCentral Station11:46CardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 12/02/2026 09:11:00 to Central Station, Cardiff (United Kingdom) arriving at 12/02/2026 11:46:00. 50 Economy ticket for £55 per person are available. Travel duration is 2h 35m
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Great Western Railway (GWR)2h 42m008:10SouthamptonCentral Station10:52CardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 12/02/2026 08:10:00 to Central Station, Cardiff (United Kingdom) arriving at 12/02/2026 10:52:00. 50 Economy ticket for £55 per person are available. Travel duration is 2h 42m
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CrossCountry2h 52m008:15SouthamptonCentral Station11:07CardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 12/02/2026 08:15:00 to Central Station, Cardiff (United Kingdom) arriving at 12/02/2026 11:07:00. 50 Economy ticket for £159 per person are available. Travel duration is 2h 52m
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South Western Railway3h 7m009:30SouthamptonCentral Station12:37CardiffCentral Station0EconomyA Train from South Western Railway goes from Central Station, Southampton (United Kingdom) at 12/02/2026 09:30:00 to Central Station, Cardiff (United Kingdom) arriving at 12/02/2026 12:37:00. 50 Economy ticket for £110 per person are available. Travel duration is 3h 7m
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 12/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 13/02/2026 01:40:00. 50 Economy ticket for £37 per person are available. Travel duration is 5h 10m
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National Express6h 10m016:30SouthamptonCoach Station22:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 12/02/2026 16:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 12/02/2026 22:40:00. 50 Economy ticket for £44 per person are available. Travel duration is 6h 10m
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FlixBus7h 0m007:15SouthamptonCoach Station14:15CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 12/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 12/02/2026 14:15:00. 50 Economy ticket for £30 per person are available. Travel duration is 7h 0m
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FlixBus7h 35m011:00SouthamptonUniversity18:35CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 12/02/2026 11:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 12/02/2026 18:35:00. 50 Economy ticket for £22 per person are available. Travel duration is 7h 35m
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FlixBus7h 50m010:45SouthamptonCoach Station18:35CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 12/02/2026 10:45:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 12/02/2026 18:35:00. 50 Economy ticket for £22 per person are available. Travel duration is 7h 50m
Fastest Trains Thursday
Fastest Buses Thursday
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 13/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 14/02/2026 01:40:00. 50 Economy ticket for £34 per person are available. Travel duration is 5h 10m
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National Express6h 15m010:45SouthamptonCoach Station17:00CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 13/02/2026 10:45:00 to Coach Station, Cardiff (United Kingdom) arriving at 13/02/2026 17:00:00. 50 Economy ticket for £40 per person are available. Travel duration is 6h 15m
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FlixBus7h 0m007:15SouthamptonCoach Station14:15CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 13/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 13/02/2026 14:15:00. 50 Economy ticket for £20 per person are available. Travel duration is 7h 0m
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FlixBus7h 5m017:15SouthamptonUniversity00:20CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 13/02/2026 17:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 14/02/2026 00:20:00. 50 Economy ticket for £18 per person are available. Travel duration is 7h 5m
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FlixBus7h 20m017:00SouthamptonCoach Station00:20CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 13/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 14/02/2026 00:20:00. 50 Economy ticket for £18 per person are available. Travel duration is 7h 20m
Fastest Buses Friday
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 14/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 15/02/2026 01:40:00. 50 Economy ticket for £34 per person are available. Travel duration is 5h 10m
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National Express5h 10m017:30SouthamptonCoach Station22:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 14/02/2026 17:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 14/02/2026 22:40:00. 50 Economy ticket for £37 per person are available. Travel duration is 5h 10m
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FlixBus7h 0m007:15SouthamptonCoach Station14:15CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 14/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 14/02/2026 14:15:00. 50 Economy ticket for £39 per person are available. Travel duration is 7h 0m
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FlixBus7h 5m017:15SouthamptonUniversity00:20CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 14/02/2026 17:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 15/02/2026 00:20:00. 50 Economy ticket for £21 per person are available. Travel duration is 7h 5m
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FlixBus7h 20m017:00SouthamptonCoach Station00:20CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 14/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 15/02/2026 00:20:00. 50 Economy ticket for £21 per person are available. Travel duration is 7h 20m
Fastest Buses Saturday
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 15/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 16/02/2026 01:40:00. 50 Economy ticket for £32 per person are available. Travel duration is 5h 10m
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National Express5h 10m017:30SouthamptonCoach Station22:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 15/02/2026 17:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 15/02/2026 22:40:00. 50 Economy ticket for £42 per person are available. Travel duration is 5h 10m
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FlixBus6h 0m017:15SouthamptonUniversity23:15CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 15/02/2026 17:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 15/02/2026 23:15:00. 50 Economy ticket for £26 per person are available. Travel duration is 6h 0m
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FlixBus6h 15m017:00SouthamptonCoach Station23:15CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 15/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 15/02/2026 23:15:00. 50 Economy ticket for £26 per person are available. Travel duration is 6h 15m
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FlixBus7h 50m010:45SouthamptonCoach Station18:35CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 15/02/2026 10:45:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 15/02/2026 18:35:00. 50 Economy ticket for £29 per person are available. Travel duration is 7h 50m
Fastest Buses Sunday
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 16/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 17/02/2026 01:40:00. 50 Economy ticket for £36 per person are available. Travel duration is 5h 10m
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National Express5h 10m017:30SouthamptonCoach Station22:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 16/02/2026 17:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 16/02/2026 22:40:00. 50 Economy ticket for £43 per person are available. Travel duration is 5h 10m
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FlixBus7h 10m017:15SouthamptonUniversity00:25CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 16/02/2026 17:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 17/02/2026 00:25:00. 50 Economy ticket for £19 per person are available. Travel duration is 7h 10m
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FlixBus7h 25m017:00SouthamptonCoach Station00:25CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 16/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 17/02/2026 00:25:00. 50 Economy ticket for £19 per person are available. Travel duration is 7h 25m
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FlixBus9h 15m007:15SouthamptonCoach Station16:30CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 16/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 16/02/2026 16:30:00. 50 Economy ticket for £19 per person are available. Travel duration is 9h 15m
Fastest Buses Monday
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 17/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 18/02/2026 01:40:00. 50 Economy ticket for £31 per person are available. Travel duration is 5h 10m
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National Express6h 25m012:15SouthamptonCoach Station18:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 17/02/2026 12:15:00 to Coach Station, Cardiff (United Kingdom) arriving at 17/02/2026 18:40:00. 50 Economy ticket for £37 per person are available. Travel duration is 6h 25m
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FlixBus7h 25m017:00SouthamptonCoach Station00:25CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 17/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 18/02/2026 00:25:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 25m
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FlixBus7h 50m010:45SouthamptonCoach Station18:35CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 17/02/2026 10:45:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 17/02/2026 18:35:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 50m
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FlixBus9h 15m007:15SouthamptonCoach Station16:30CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 17/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 17/02/2026 16:30:00. 50 Economy ticket for £15 per person are available. Travel duration is 9h 15m
Fastest Buses Tuesday
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CrossCountry2h 25m009:15SouthamptonCentral Station11:40CardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 18/02/2026 09:15:00 to Central Station, Cardiff (United Kingdom) arriving at 18/02/2026 11:40:00. 50 Economy ticket for £148 per person are available. Travel duration is 2h 25m
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Great Western Railway (GWR)2h 35m009:11SouthamptonCentral Station11:46CardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 18/02/2026 09:11:00 to Central Station, Cardiff (United Kingdom) arriving at 18/02/2026 11:46:00. 50 Economy ticket for £12 per person are available. Travel duration is 2h 35m
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Great Western Railway (GWR)2h 42m008:10SouthamptonCentral Station10:52CardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 18/02/2026 08:10:00 to Central Station, Cardiff (United Kingdom) arriving at 18/02/2026 10:52:00. 50 Economy ticket for £12 per person are available. Travel duration is 2h 42m
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CrossCountry2h 55m008:15SouthamptonCentral Station11:10CardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 18/02/2026 08:15:00 to Central Station, Cardiff (United Kingdom) arriving at 18/02/2026 11:10:00. 50 Economy ticket for £160 per person are available. Travel duration is 2h 55m
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South Western Railway3h 7m009:30SouthamptonCentral Station12:37CardiffCentral Station0EconomyA Train from South Western Railway goes from Central Station, Southampton (United Kingdom) at 18/02/2026 09:30:00 to Central Station, Cardiff (United Kingdom) arriving at 18/02/2026 12:37:00. 50 Economy ticket for £111 per person are available. Travel duration is 3h 7m
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National Express5h 10m020:30SouthamptonCoach Station01:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 18/02/2026 20:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 19/02/2026 01:40:00. 50 Economy ticket for £36 per person are available. Travel duration is 5h 10m
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National Express6h 10m016:30SouthamptonCoach Station22:40CardiffCoach Station0EconomyA Bus from National Express goes from Coach Station, Southampton (United Kingdom) at 18/02/2026 16:30:00 to Coach Station, Cardiff (United Kingdom) arriving at 18/02/2026 22:40:00. 50 Economy ticket for £39 per person are available. Travel duration is 6h 10m
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FlixBus7h 10m017:15SouthamptonUniversity00:25CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 18/02/2026 17:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 19/02/2026 00:25:00. 50 Economy ticket for £19 per person are available. Travel duration is 7h 10m
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FlixBus7h 25m017:00SouthamptonCoach Station00:25CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 18/02/2026 17:00:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 19/02/2026 00:25:00. 50 Economy ticket for £19 per person are available. Travel duration is 7h 25m
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FlixBus9h 15m007:15SouthamptonCoach Station16:30CardiffKingsway Coach Stop0EconomyA Bus from FlixBus goes from Coach Station, Southampton (United Kingdom) at 18/02/2026 07:15:00 to Kingsway Coach Stop, Cardiff (United Kingdom) arriving at 18/02/2026 16:30:00. 50 Economy ticket for £19 per person are available. Travel duration is 9h 15m
Fastest Trains Wednesday
Fastest Buses Wednesday
Here you will find all operators and timetables for a
Bus from Southampton to Cardiff
What are the most popular stations in Southampton and Cardiff?
In Southampton, you will usually depart from Central Station, Coach Station or Swanwick Train Station, while in Cardiff you will be arriving at Central Station, Penarth Train Station or Dingle Road Train 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 Cardiff from Southampton? With 6 connections between 5 Train 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 Southampton and Cardiff, you can pay as low as £12 with a Train from Great Western Railway (GWR).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 Train from CrossCountry: you will get to Cardiff in just 2h 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 Southampton and Cardiff are FlixBus, National Express and Great Western Railway (GWR), 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 Southampton and Cardiff 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 Netley or to Newlyn, and look at flights from Bournemouth Airport, and landing at Cardiff 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 Southampton to Cardiff?
The most popular companies between Southampton and Cardiff, are FlixBus, National Express and Great Western Railway (GWR). Be sure to check their seat class offers and the amenities that they provide.
Bus companies: FlixBus and National Express
Train companies: Great Western Railway (GWR), CrossCountry and South Western Railway
All you need to know when you travel from Southampton to Cardiff
Check all information on comfort and services on all modes of transports from Southampton to Cardiff. See which seat classes are available, and what amenities are other advantages offered by the operators on your journey.
FAQs about the trip from Southampton to Cardiff
How can I reach Cardiff from Southampton?
Every day, there are on average 6 connections between Train and Bus, with which you can get to Cardiff from Southampton.
How far is Cardiff from Southampton?
The distance between Southampton and Cardiff is 139.1 km.
What is the most ecofriendly mode of transport between Southampton and Cardiff?
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 4 kgs of CO2, a train 5 kgs, a car 24 kgs, and a flight 34 kgs.
What is the cheapest mode of transport from Southampton to Cardiff?
You can get to Cardiff with just £12 by taking a Train from Great Western Railway (GWR).
What is the fastest way to get from Southampton to Cardiff?
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 Cardiff in just 2h 25m with a Train from CrossCountry.
More routes to Southampton and to Cardiff
Looking for more options? Here you can see the most popular routes to Southampton and to Cardiff. Simply click on a connection, and you’ll find all the details about the route!
- Trips to Southampton
- Aberdeen to Southampton
- Bath to Southampton
- Birmingham to Southampton
- Bristol to Southampton
- Cardiff to Southampton
- Carlisle to Southampton
- Dundee to Southampton
- Edinburgh to Southampton
- Glasgow to Southampton
- Leeds to Southampton
- Leicester to Southampton
- Liverpool to Southampton
- London Gatwick Airport to Southampton
- London Heathrow Airport to Southampton
- London to Southampton
- Manchester to Southampton
- Middlesbrough to Southampton
- Newcastle upon Tyne to Southampton
- Sheffield to Southampton
- Trips to Cardiff
- Aberdeen to Cardiff
- Birmingham to Cardiff
- Bradford to Cardiff
- Brighton to Cardiff
- Bristol Airport to Cardiff
- Bristol to Cardiff
- Coventry to Cardiff
- Edinburgh to Cardiff
- Exeter to Cardiff
- Glasgow to Cardiff
- Hamburg to Cardiff
- Harrow to Cardiff
- Liverpool to Cardiff
- London Heathrow Airport to Cardiff
- London to Cardiff
- Manchester to Cardiff
- Newcastle upon Tyne to Cardiff
- Norwich to Cardiff
- Nottingham to Cardiff
- Paris to Cardiff
- Reading to Cardiff
- Sheffield to Cardiff
- Swansea to Cardiff
