What is the best way to travel from Cardiff to Southampton?
Looking for a trip? Compare all the available Buses and Trains for the journey to Southampton from Cardiff. Check between different modes of transportation, look for the cheapest tickets, fastest rides and most popular stations, and see all 3 available companies to find your perfect trip!
What is the cheapest way to reach Southampton from Cardiff?
You can get to Southampton with just $27 by taking a Bus from FlixBus, but you can find many more cheap offers: we have selected the best ones for next few days here for you.
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FlixBus6h 45m010:40 AMCardiffKingsway Bus Stop5:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/18/2025 10:40:00 AM to University, Southampton (United Kingdom) arriving at 12/18/2025 5:25:00 PM. 50 Economy ticket for $29 per person are available. Travel duration is 6h 45m
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FlixBus8h 15m02:50 PMCardiffKingsway Bus Stop11:05 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/18/2025 2:50:00 PM to University, Southampton (United Kingdom) arriving at 12/18/2025 11:05:00 PM. 50 Economy ticket for $29 per person are available. Travel duration is 8h 15m
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FlixBus7h 0m010:40 AMCardiffKingsway Bus Stop5:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/18/2025 10:40:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/18/2025 5:40:00 PM. 50 Economy ticket for $29 per person are available. Travel duration is 7h 0m
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National Express7h 0m06:00 PMCardiffCoach Station1:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/18/2025 6:00:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/19/2025 1:00:00 AM. 50 Economy ticket for $41 per person are available. Travel duration is 7h 0m
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National Express7h 47m07:13 PMBristol AirportBristol Airport3:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 12/18/2025 7:13:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/19/2025 3:00:00 AM. 50 Economy ticket for $47 per person are available. Travel duration is 7h 47m
Cheapest Buses Thursday
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FlixBus6h 45m010:40 AMCardiffKingsway Bus Stop5:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/19/2025 10:40:00 AM to University, Southampton (United Kingdom) arriving at 12/19/2025 5:25:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 6h 45m
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FlixBus8h 15m02:50 PMCardiffKingsway Bus Stop11:05 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/19/2025 2:50:00 PM to University, Southampton (United Kingdom) arriving at 12/19/2025 11:05:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 8h 15m
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FlixBus7h 0m010:40 AMCardiffKingsway Bus Stop5:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/19/2025 10:40:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/19/2025 5:40:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 7h 0m
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National Express6h 59m07:46 PMBristol AirportBristol Airport2:45 AMSouthamptonUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 12/19/2025 7:46:00 PM to University, Southampton (United Kingdom) arriving at 12/20/2025 2:45:00 AM. 50 Economy ticket for $49 per person are available. Travel duration is 6h 59m
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National Express7h 14m07:46 PMBristol AirportBristol Airport3:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 12/19/2025 7:46:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/20/2025 3:00:00 AM. 50 Economy ticket for $49 per person are available. Travel duration is 7h 14m
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Great Western Railway (GWR)2h 34m012:30 PMCardiffCentral Station3:04 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/19/2025 12:30:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/19/2025 3:04:00 PM. 50 Economy ticket for $67 per person are available. Travel duration is 2h 34m
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Great Western Railway (GWR)2h 35m06:28 AMCardiffCentral Station9:03 AMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/19/2025 6:28:00 AM to Central Station, Southampton (United Kingdom) arriving at 12/19/2025 9:03:00 AM. 50 Economy ticket for $74 per person are available. Travel duration is 2h 35m
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Great Western Railway (GWR)2h 38m07:27 AMCardiffCentral Station10:05 AMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/19/2025 7:27:00 AM to Central Station, Southampton (United Kingdom) arriving at 12/19/2025 10:05:00 AM. 50 Economy ticket for $74 per person are available. Travel duration is 2h 38m
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Great Western Railway (GWR)2h 34m011:30 AMCardiffCentral Station2:04 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/19/2025 11:30:00 AM to Central Station, Southampton (United Kingdom) arriving at 12/19/2025 2:04:00 PM. 50 Economy ticket for $74 per person are available. Travel duration is 2h 34m
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Great Western Railway (GWR)2h 36m08:27 AMCardiffCentral Station11:03 AMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/19/2025 8:27:00 AM to Central Station, Southampton (United Kingdom) arriving at 12/19/2025 11:03:00 AM. 50 Economy ticket for $81 per person are available. Travel duration is 2h 36m
Cheapest Buses Friday
Cheapest Trains Friday
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FlixBus6h 40m06:45 AMCardiffKingsway Bus Stop1:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/20/2025 6:45:00 AM to University, Southampton (United Kingdom) arriving at 12/20/2025 1:25:00 PM. 50 Economy ticket for $40 per person are available. Travel duration is 6h 40m
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FlixBus6h 55m06:45 AMCardiffKingsway Bus Stop1:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/20/2025 6:45:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/20/2025 1:40:00 PM. 50 Economy ticket for $41 per person are available. Travel duration is 6h 55m
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FlixBus6h 20m04:45 PMCardiffKingsway Bus Stop11:05 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/20/2025 4:45:00 PM to University, Southampton (United Kingdom) arriving at 12/20/2025 11:05:00 PM. 50 Economy ticket for $47 per person are available. Travel duration is 6h 20m
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National Express6h 59m07:46 PMBristol AirportBristol Airport2:45 AMSouthamptonUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 12/20/2025 7:46:00 PM to University, Southampton (United Kingdom) arriving at 12/21/2025 2:45:00 AM. 50 Economy ticket for $48 per person are available. Travel duration is 6h 59m
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National Express7h 14m07:46 PMBristol AirportBristol Airport3:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 12/20/2025 7:46:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/21/2025 3:00:00 AM. 50 Economy ticket for $48 per person are available. Travel duration is 7h 14m
Cheapest Buses Saturday
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FlixBus6h 40m06:45 AMCardiffKingsway Bus Stop1:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/21/2025 6:45:00 AM to University, Southampton (United Kingdom) arriving at 12/21/2025 1:25:00 PM. 50 Economy ticket for $38 per person are available. Travel duration is 6h 40m
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FlixBus6h 20m04:45 PMCardiffKingsway Bus Stop11:05 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/21/2025 4:45:00 PM to University, Southampton (United Kingdom) arriving at 12/21/2025 11:05:00 PM. 50 Economy ticket for $38 per person are available. Travel duration is 6h 20m
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FlixBus6h 55m06:45 AMCardiffKingsway Bus Stop1:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/21/2025 6:45:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/21/2025 1:40:00 PM. 50 Economy ticket for $38 per person are available. Travel duration is 6h 55m
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National Express7h 20m04:45 PMCardiffCoach Station12:05 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/21/2025 4:45:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/22/2025 12:05:00 AM. 50 Economy ticket for $50 per person are available. Travel duration is 7h 20m
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National Express6h 45m06:45 PMCardiffCoach Station1:30 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/21/2025 6:45:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/22/2025 1:30:00 AM. 50 Economy ticket for $50 per person are available. Travel duration is 6h 45m
Cheapest Buses Sunday
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FlixBus6h 40m06:45 AMCardiffKingsway Bus Stop1:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/22/2025 6:45:00 AM to University, Southampton (United Kingdom) arriving at 12/22/2025 1:25:00 PM. 50 Economy ticket for $27 per person are available. Travel duration is 6h 40m
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FlixBus6h 55m06:45 AMCardiffKingsway Bus Stop1:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/22/2025 6:45:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/22/2025 1:40:00 PM. 50 Economy ticket for $28 per person are available. Travel duration is 6h 55m
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FlixBus6h 45m010:40 AMCardiffKingsway Bus Stop5:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/22/2025 10:40:00 AM to University, Southampton (United Kingdom) arriving at 12/22/2025 5:25:00 PM. 50 Economy ticket for $32 per person are available. Travel duration is 6h 45m
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National Express7h 20m04:45 PMCardiffCoach Station12:05 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/22/2025 4:45:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/23/2025 12:05:00 AM. 50 Economy ticket for $45 per person are available. Travel duration is 7h 20m
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National Express7h 15m07:45 PMCardiffCoach Station3:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/22/2025 7:45:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/23/2025 3:00:00 AM. 50 Economy ticket for $48 per person are available. Travel duration is 7h 15m
Cheapest Buses Monday
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FlixBus8h 15m02:50 PMCardiffKingsway Bus Stop11:05 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/23/2025 2:50:00 PM to University, Southampton (United Kingdom) arriving at 12/23/2025 11:05:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 8h 15m
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FlixBus8h 30m02:50 PMCardiffKingsway Bus Stop11:20 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/23/2025 2:50:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/23/2025 11:20:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 8h 30m
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FlixBus6h 55m06:45 AMCardiffKingsway Bus Stop1:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/23/2025 6:45:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/23/2025 1:40:00 PM. 50 Economy ticket for $40 per person are available. Travel duration is 6h 55m
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National Express7h 0m06:00 PMCardiffCoach Station1:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/23/2025 6:00:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/24/2025 1:00:00 AM. 50 Economy ticket for $42 per person are available. Travel duration is 7h 0m
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National Express7h 45m07:15 PMCardiffCoach Station3:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/23/2025 7:15:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/24/2025 3:00:00 AM. 50 Economy ticket for $42 per person are available. Travel duration is 7h 45m
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Great Western Railway (GWR)2h 32m02:30 PMCardiffCentral Station5:02 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/23/2025 2:30:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/23/2025 5:02:00 PM. 50 Economy ticket for $74 per person are available. Travel duration is 2h 32m
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Great Western Railway (GWR)2h 34m012:30 PMCardiffCentral Station3:04 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/23/2025 12:30:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/23/2025 3:04:00 PM. 50 Economy ticket for $81 per person are available. Travel duration is 2h 34m
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Great Western Railway (GWR)2h 32m01:30 PMCardiffCentral Station4:02 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/23/2025 1:30:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/23/2025 4:02:00 PM. 50 Economy ticket for $81 per person are available. Travel duration is 2h 32m
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Great Western Railway (GWR)2h 25m01:18 PMCardiffCentral Station3:43 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/23/2025 1:18:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/23/2025 3:43:00 PM. 50 Economy ticket for $148 per person are available. Travel duration is 2h 25m
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Great Western Railway (GWR)2h 26m02:18 PMCardiffCentral Station4:44 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/23/2025 2:18:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/23/2025 4:44:00 PM. 50 Economy ticket for $148 per person are available. Travel duration is 2h 26m
Cheapest Buses Tuesday
Cheapest Trains Tuesday
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National Express7h 50m03:45 PMCardiffCoach Station11:35 PMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/24/2025 3:45:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/24/2025 11:35:00 PM. 50 Economy ticket for $45 per person are available. Travel duration is 7h 50m
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FlixBus6h 45m010:40 AMCardiffKingsway Bus Stop5:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/24/2025 10:40:00 AM to University, Southampton (United Kingdom) arriving at 12/24/2025 5:25:00 PM. 50 Economy ticket for $49 per person are available. Travel duration is 6h 45m
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FlixBus7h 0m010:40 AMCardiffKingsway Bus Stop5:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/24/2025 10:40:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/24/2025 5:40:00 PM. 50 Economy ticket for $49 per person are available. Travel duration is 7h 0m
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FlixBus6h 40m06:45 AMCardiffKingsway Bus Stop1:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/24/2025 6:45:00 AM to University, Southampton (United Kingdom) arriving at 12/24/2025 1:25:00 PM. 50 Economy ticket for $53 per person are available. Travel duration is 6h 40m
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National Express6h 30m09:25 AMCardiffCoach Station3:55 PMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/24/2025 9:25:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/24/2025 3:55:00 PM. 50 Economy ticket for $81 per person are available. Travel duration is 6h 30m
Cheapest Buses Wednesday
What are the fastest trips from Cardiff to Southampton?
You can get to Southampton from Cardiff in just 2h 25m with a Train from Great Western Railway (GWR). This is not the only option, and you can click on any of the offers below to compare it with the other modes of transportations.
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FlixBus6h 45m010:40 AMCardiffKingsway Bus Stop5:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/18/2025 10:40:00 AM to University, Southampton (United Kingdom) arriving at 12/18/2025 5:25:00 PM. 50 Economy ticket for $29 per person are available. Travel duration is 6h 45m
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FlixBus7h 0m010:40 AMCardiffKingsway Bus Stop5:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/18/2025 10:40:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/18/2025 5:40:00 PM. 50 Economy ticket for $29 per person are available. Travel duration is 7h 0m
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National Express7h 0m06:00 PMCardiffCoach Station1:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/18/2025 6:00:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/19/2025 1:00:00 AM. 50 Economy ticket for $41 per person are available. Travel duration is 7h 0m
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National Express7h 47m07:13 PMBristol AirportBristol Airport3:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 12/18/2025 7:13:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/19/2025 3:00:00 AM. 50 Economy ticket for $47 per person are available. Travel duration is 7h 47m
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FlixBus8h 15m02:50 PMCardiffKingsway Bus Stop11:05 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/18/2025 2:50:00 PM to University, Southampton (United Kingdom) arriving at 12/18/2025 11:05:00 PM. 50 Economy ticket for $29 per person are available. Travel duration is 8h 15m
Fastest Buses Thursday
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Great Western Railway (GWR)2h 34m012:30 PMCardiffCentral Station3:04 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/19/2025 12:30:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/19/2025 3:04:00 PM. 50 Economy ticket for $67 per person are available. Travel duration is 2h 34m
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Great Western Railway (GWR)2h 34m011:30 AMCardiffCentral Station2:04 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/19/2025 11:30:00 AM to Central Station, Southampton (United Kingdom) arriving at 12/19/2025 2:04:00 PM. 50 Economy ticket for $74 per person are available. Travel duration is 2h 34m
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Great Western Railway (GWR)2h 35m06:28 AMCardiffCentral Station9:03 AMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/19/2025 6:28:00 AM to Central Station, Southampton (United Kingdom) arriving at 12/19/2025 9:03:00 AM. 50 Economy ticket for $74 per person are available. Travel duration is 2h 35m
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Great Western Railway (GWR)2h 36m08:27 AMCardiffCentral Station11:03 AMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/19/2025 8:27:00 AM to Central Station, Southampton (United Kingdom) arriving at 12/19/2025 11:03:00 AM. 50 Economy ticket for $81 per person are available. Travel duration is 2h 36m
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Great Western Railway (GWR)2h 38m07:27 AMCardiffCentral Station10:05 AMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/19/2025 7:27:00 AM to Central Station, Southampton (United Kingdom) arriving at 12/19/2025 10:05:00 AM. 50 Economy ticket for $74 per person are available. Travel duration is 2h 38m
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FlixBus6h 45m010:40 AMCardiffKingsway Bus Stop5:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/19/2025 10:40:00 AM to University, Southampton (United Kingdom) arriving at 12/19/2025 5:25:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 6h 45m
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National Express6h 59m07:46 PMBristol AirportBristol Airport2:45 AMSouthamptonUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 12/19/2025 7:46:00 PM to University, Southampton (United Kingdom) arriving at 12/20/2025 2:45:00 AM. 50 Economy ticket for $49 per person are available. Travel duration is 6h 59m
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FlixBus7h 0m010:40 AMCardiffKingsway Bus Stop5:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/19/2025 10:40:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/19/2025 5:40:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 7h 0m
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National Express7h 14m07:46 PMBristol AirportBristol Airport3:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 12/19/2025 7:46:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/20/2025 3:00:00 AM. 50 Economy ticket for $49 per person are available. Travel duration is 7h 14m
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FlixBus8h 15m02:50 PMCardiffKingsway Bus Stop11:05 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/19/2025 2:50:00 PM to University, Southampton (United Kingdom) arriving at 12/19/2025 11:05:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 8h 15m
Fastest Trains Friday
Fastest Buses Friday
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FlixBus6h 20m04:45 PMCardiffKingsway Bus Stop11:05 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/20/2025 4:45:00 PM to University, Southampton (United Kingdom) arriving at 12/20/2025 11:05:00 PM. 50 Economy ticket for $47 per person are available. Travel duration is 6h 20m
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FlixBus6h 40m06:45 AMCardiffKingsway Bus Stop1:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/20/2025 6:45:00 AM to University, Southampton (United Kingdom) arriving at 12/20/2025 1:25:00 PM. 50 Economy ticket for $40 per person are available. Travel duration is 6h 40m
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FlixBus6h 55m06:45 AMCardiffKingsway Bus Stop1:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/20/2025 6:45:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/20/2025 1:40:00 PM. 50 Economy ticket for $41 per person are available. Travel duration is 6h 55m
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National Express6h 59m07:46 PMBristol AirportBristol Airport2:45 AMSouthamptonUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 12/20/2025 7:46:00 PM to University, Southampton (United Kingdom) arriving at 12/21/2025 2:45:00 AM. 50 Economy ticket for $48 per person are available. Travel duration is 6h 59m
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National Express7h 14m07:46 PMBristol AirportBristol Airport3:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 12/20/2025 7:46:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/21/2025 3:00:00 AM. 50 Economy ticket for $48 per person are available. Travel duration is 7h 14m
Fastest Buses Saturday
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FlixBus6h 20m04:45 PMCardiffKingsway Bus Stop11:05 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/21/2025 4:45:00 PM to University, Southampton (United Kingdom) arriving at 12/21/2025 11:05:00 PM. 50 Economy ticket for $38 per person are available. Travel duration is 6h 20m
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FlixBus6h 40m06:45 AMCardiffKingsway Bus Stop1:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/21/2025 6:45:00 AM to University, Southampton (United Kingdom) arriving at 12/21/2025 1:25:00 PM. 50 Economy ticket for $38 per person are available. Travel duration is 6h 40m
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National Express6h 45m06:45 PMCardiffCoach Station1:30 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/21/2025 6:45:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/22/2025 1:30:00 AM. 50 Economy ticket for $50 per person are available. Travel duration is 6h 45m
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FlixBus6h 55m06:45 AMCardiffKingsway Bus Stop1:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/21/2025 6:45:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/21/2025 1:40:00 PM. 50 Economy ticket for $38 per person are available. Travel duration is 6h 55m
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National Express7h 20m04:45 PMCardiffCoach Station12:05 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/21/2025 4:45:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/22/2025 12:05:00 AM. 50 Economy ticket for $50 per person are available. Travel duration is 7h 20m
Fastest Buses Sunday
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FlixBus6h 40m06:45 AMCardiffKingsway Bus Stop1:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/22/2025 6:45:00 AM to University, Southampton (United Kingdom) arriving at 12/22/2025 1:25:00 PM. 50 Economy ticket for $27 per person are available. Travel duration is 6h 40m
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FlixBus6h 45m010:40 AMCardiffKingsway Bus Stop5:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/22/2025 10:40:00 AM to University, Southampton (United Kingdom) arriving at 12/22/2025 5:25:00 PM. 50 Economy ticket for $32 per person are available. Travel duration is 6h 45m
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FlixBus6h 55m06:45 AMCardiffKingsway Bus Stop1:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/22/2025 6:45:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/22/2025 1:40:00 PM. 50 Economy ticket for $28 per person are available. Travel duration is 6h 55m
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National Express7h 15m07:45 PMCardiffCoach Station3:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/22/2025 7:45:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/23/2025 3:00:00 AM. 50 Economy ticket for $48 per person are available. Travel duration is 7h 15m
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National Express7h 20m04:45 PMCardiffCoach Station12:05 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/22/2025 4:45:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/23/2025 12:05:00 AM. 50 Economy ticket for $45 per person are available. Travel duration is 7h 20m
Fastest Buses Monday
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Great Western Railway (GWR)2h 25m01:18 PMCardiffCentral Station3:43 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/23/2025 1:18:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/23/2025 3:43:00 PM. 50 Economy ticket for $148 per person are available. Travel duration is 2h 25m
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Great Western Railway (GWR)2h 26m02:18 PMCardiffCentral Station4:44 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/23/2025 2:18:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/23/2025 4:44:00 PM. 50 Economy ticket for $148 per person are available. Travel duration is 2h 26m
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Great Western Railway (GWR)2h 32m02:30 PMCardiffCentral Station5:02 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/23/2025 2:30:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/23/2025 5:02:00 PM. 50 Economy ticket for $74 per person are available. Travel duration is 2h 32m
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Great Western Railway (GWR)2h 32m01:30 PMCardiffCentral Station4:02 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/23/2025 1:30:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/23/2025 4:02:00 PM. 50 Economy ticket for $81 per person are available. Travel duration is 2h 32m
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Great Western Railway (GWR)2h 34m012:30 PMCardiffCentral Station3:04 PMSouthamptonCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 12/23/2025 12:30:00 PM to Central Station, Southampton (United Kingdom) arriving at 12/23/2025 3:04:00 PM. 50 Economy ticket for $81 per person are available. Travel duration is 2h 34m
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FlixBus6h 55m06:45 AMCardiffKingsway Bus Stop1:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/23/2025 6:45:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/23/2025 1:40:00 PM. 50 Economy ticket for $40 per person are available. Travel duration is 6h 55m
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National Express7h 0m06:00 PMCardiffCoach Station1:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/23/2025 6:00:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/24/2025 1:00:00 AM. 50 Economy ticket for $42 per person are available. Travel duration is 7h 0m
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National Express7h 45m07:15 PMCardiffCoach Station3:00 AMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/23/2025 7:15:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/24/2025 3:00:00 AM. 50 Economy ticket for $42 per person are available. Travel duration is 7h 45m
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FlixBus8h 15m02:50 PMCardiffKingsway Bus Stop11:05 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/23/2025 2:50:00 PM to University, Southampton (United Kingdom) arriving at 12/23/2025 11:05:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 8h 15m
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FlixBus8h 30m02:50 PMCardiffKingsway Bus Stop11:20 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/23/2025 2:50:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/23/2025 11:20:00 PM. 50 Economy ticket for $33 per person are available. Travel duration is 8h 30m
Fastest Trains Tuesday
Fastest Buses Tuesday
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National Express6h 30m09:25 AMCardiffCoach Station3:55 PMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/24/2025 9:25:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/24/2025 3:55:00 PM. 50 Economy ticket for $81 per person are available. Travel duration is 6h 30m
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FlixBus6h 40m06:45 AMCardiffKingsway Bus Stop1:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/24/2025 6:45:00 AM to University, Southampton (United Kingdom) arriving at 12/24/2025 1:25:00 PM. 50 Economy ticket for $53 per person are available. Travel duration is 6h 40m
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FlixBus6h 45m010:40 AMCardiffKingsway Bus Stop5:25 PMSouthamptonUniversity0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/24/2025 10:40:00 AM to University, Southampton (United Kingdom) arriving at 12/24/2025 5:25:00 PM. 50 Economy ticket for $49 per person are available. Travel duration is 6h 45m
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FlixBus7h 0m010:40 AMCardiffKingsway Bus Stop5:40 PMSouthamptonBus Station0EconomyA Bus from FlixBus goes from Kingsway Bus Stop, Cardiff (United Kingdom) at 12/24/2025 10:40:00 AM to Bus Station, Southampton (United Kingdom) arriving at 12/24/2025 5:40:00 PM. 50 Economy ticket for $49 per person are available. Travel duration is 7h 0m
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National Express7h 50m03:45 PMCardiffCoach Station11:35 PMSouthamptonBus Station0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 12/24/2025 3:45:00 PM to Bus Station, Southampton (United Kingdom) arriving at 12/24/2025 11:35:00 PM. 50 Economy ticket for $45 per person are available. Travel duration is 7h 50m
Fastest Buses Wednesday
Here you will find all operators and timetables for a
Bus from Cardiff to Southampton
What are the most popular stations in Cardiff and Southampton?
In Cardiff, you will usually depart from Central Station, Dingle Road Train Station or Penarth Train Station, while in Southampton you will be arriving at Central Station, Bus Station or Swanwick 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 Southampton from Cardiff? With 6 connections between 3 Bus and Train 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 Cardiff and Southampton, you can pay as low as $27 with a Bus from FlixBus.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 Great Western Railway (GWR): you will get to Southampton 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 Cardiff and Southampton 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 Cardiff and Southampton 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 Newlyn or to Netley, and look at flights from Cardiff Airport, and landing at Bournemouth 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 Cardiff to Southampton?
The most popular companies between Cardiff and Southampton, 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)
All you need to know when you travel from Cardiff to Southampton
Check all information on comfort and services on all modes of transports from Cardiff to Southampton. See which seat classes are available, and what amenities are other advantages offered by the operators on your journey.
FAQs about the trip from Cardiff to Southampton
How can I reach Southampton from Cardiff?
Every day, there are on average 6 connections between Bus and Train, with which you can get to Southampton from Cardiff.
How far is Southampton from Cardiff?
The distance between Cardiff and Southampton is 86.4 miles.
What is the most ecofriendly mode of transport between Cardiff and Southampton?
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 Cardiff to Southampton?
You can get to Southampton with just $27 by taking a Bus from FlixBus.
What is the fastest way to get from Cardiff to Southampton?
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 Southampton in just 2h 25m with a Train from Great Western Railway (GWR).
More routes to Cardiff and to Southampton
Looking for more options? Here you can see the most popular routes to Cardiff and to Southampton. Simply click on a connection, and you’ll find all the details about the route!
- Trips to Cardiff
- Aberdeen to Cardiff
- Bath to Cardiff
- Birmingham to Cardiff
- Bridgwater to Cardiff
- Bristol Airport to Cardiff
- Bristol to Cardiff
- Edinburgh to Cardiff
- Exeter to Cardiff
- Glasgow to Cardiff
- Liverpool to Cardiff
- London Heathrow Airport to Cardiff
- London to Cardiff
- Manchester to Cardiff
- Middlesbrough to Cardiff
- Newcastle upon Tyne to Cardiff
- Norwich to Cardiff
- Paris to Cardiff
- Reading to Cardiff
- Southampton to Cardiff
- Sunderland to Cardiff
- Swansea to Cardiff
- Trips to Southampton
- Aberdeen to Southampton
- Birmingham to Southampton
- Bournemouth to Southampton
- Carlisle to Southampton
- Coventry to Southampton
- Dundee to Southampton
- Edinburgh to Southampton
- Exeter to Southampton
- Glasgow to Southampton
- Leeds to Southampton
- Liverpool to Southampton
- London Gatwick Airport to Southampton
- London Heathrow Airport to Southampton
- London to Southampton
- Middlesbrough to Southampton
- Newcastle upon Tyne to Southampton
- Oxford to Southampton
- Poole to Southampton
- Sheffield to Southampton

