What is the best way to travel from Southampton to Cardiff?
Looking for a trip? Compare all the available Trains and Buses for the journey to Cardiff from Southampton. Check between different modes of transportation, look 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 get to Cardiff with just $16 by taking a Train from Great Western Railway (GWR), 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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FlixBus7h 50m010:45 AMSouthamptonBus Station6:35 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/12/2026 10:45:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/12/2026 6:35:00 PM. 50 Economy ticket for $31 per person are available. Travel duration is 7h 50m
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FlixBus7h 35m011:00 AMSouthamptonUniversity6:35 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/12/2026 11:00:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/12/2026 6:35:00 PM. 50 Economy ticket for $31 per person are available. Travel duration is 7h 35m
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FlixBus7h 0m07:15 AMSouthamptonBus Station2:15 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/12/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/12/2026 2:15:00 PM. 50 Economy ticket for $42 per person are available. Travel duration is 7h 0m
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/12/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/13/2026 1:40:00 AM. 50 Economy ticket for $51 per person are available. Travel duration is 5h 10m
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National Express6h 10m04:30 PMSouthamptonBus Station10:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/12/2026 4:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/12/2026 10:40:00 PM. 50 Economy ticket for $60 per person are available. Travel duration is 6h 10m
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Great Western Railway (GWR)2h 42m08:10 AMSouthamptonCentral Station10:52 AMCardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 2/12/2026 8:10:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/12/2026 10:52:00 AM. 50 Economy ticket for $75 per person are available. Travel duration is 2h 42m
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Great Western Railway (GWR)2h 35m09:11 AMSouthamptonCentral Station11:46 AMCardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 2/12/2026 9:11:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/12/2026 11:46:00 AM. 50 Economy ticket for $75 per person are available. Travel duration is 2h 35m
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South Western Railway3h 7m09:30 AMSouthamptonCentral Station12:37 PMCardiffCentral Station0EconomyA Train from South Western Railway goes from Central Station, Southampton (United Kingdom) at 2/12/2026 9:30:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/12/2026 12:37:00 PM. 50 Economy ticket for $150 per person are available. Travel duration is 3h 7m
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CrossCountry2h 25m09:15 AMSouthamptonCentral Station11:40 AMCardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 2/12/2026 9:15:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/12/2026 11:40:00 AM. 50 Economy ticket for $201 per person are available. Travel duration is 2h 25m
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CrossCountry2h 52m08:15 AMSouthamptonCentral Station11:07 AMCardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 2/12/2026 8:15:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/12/2026 11:07:00 AM. 50 Economy ticket for $217 per person are available. Travel duration is 2h 52m
Cheapest Buses Thursday
Cheapest Trains Thursday
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FlixBus7h 20m05:00 PMSouthamptonBus Station12:20 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/13/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/14/2026 12:20:00 AM. 50 Economy ticket for $25 per person are available. Travel duration is 7h 20m
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FlixBus7h 5m05:15 PMSouthamptonUniversity12:20 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/13/2026 5:15:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/14/2026 12:20:00 AM. 50 Economy ticket for $25 per person are available. Travel duration is 7h 5m
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FlixBus7h 0m07:15 AMSouthamptonBus Station2:15 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/13/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/13/2026 2:15:00 PM. 50 Economy ticket for $27 per person are available. Travel duration is 7h 0m
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/13/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/14/2026 1:40:00 AM. 50 Economy ticket for $46 per person are available. Travel duration is 5h 10m
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National Express6h 15m010:45 AMSouthamptonBus Station5:00 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/13/2026 10:45:00 AM to Coach Station, Cardiff (United Kingdom) arriving at 2/13/2026 5:00:00 PM. 50 Economy ticket for $55 per person are available. Travel duration is 6h 15m
Cheapest Buses Friday
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FlixBus7h 20m05:00 PMSouthamptonBus Station12:20 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/14/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/15/2026 12:20:00 AM. 50 Economy ticket for $29 per person are available. Travel duration is 7h 20m
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FlixBus7h 5m05:15 PMSouthamptonUniversity12:20 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/14/2026 5:15:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/15/2026 12:20:00 AM. 50 Economy ticket for $29 per person are available. Travel duration is 7h 5m
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/14/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/15/2026 1:40:00 AM. 50 Economy ticket for $46 per person are available. Travel duration is 5h 10m
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National Express5h 10m05:30 PMSouthamptonBus Station10:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/14/2026 5:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/14/2026 10:40:00 PM. 50 Economy ticket for $50 per person are available. Travel duration is 5h 10m
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FlixBus7h 0m07:15 AMSouthamptonBus Station2:15 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/14/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/14/2026 2:15:00 PM. 50 Economy ticket for $53 per person are available. Travel duration is 7h 0m
Cheapest Buses Saturday
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FlixBus6h 15m05:00 PMSouthamptonBus Station11:15 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/15/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/15/2026 11:15:00 PM. 50 Economy ticket for $36 per person are available. Travel duration is 6h 15m
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FlixBus6h 0m05:15 PMSouthamptonUniversity11:15 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/15/2026 5:15:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/15/2026 11:15:00 PM. 50 Economy ticket for $36 per person are available. Travel duration is 6h 0m
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FlixBus7h 50m010:45 AMSouthamptonBus Station6:35 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/15/2026 10:45:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/15/2026 6:35:00 PM. 50 Economy ticket for $40 per person are available. Travel duration is 7h 50m
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/15/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/16/2026 1:40:00 AM. 50 Economy ticket for $43 per person are available. Travel duration is 5h 10m
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National Express5h 10m05:30 PMSouthamptonBus Station10:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/15/2026 5:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/15/2026 10:40:00 PM. 50 Economy ticket for $58 per person are available. Travel duration is 5h 10m
Cheapest Buses Sunday
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FlixBus9h 15m07:15 AMSouthamptonBus Station4:30 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/16/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/16/2026 4:30:00 PM. 50 Economy ticket for $26 per person are available. Travel duration is 9h 15m
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FlixBus7h 25m05:00 PMSouthamptonBus Station12:25 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/16/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/17/2026 12:25:00 AM. 50 Economy ticket for $26 per person are available. Travel duration is 7h 25m
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FlixBus7h 10m05:15 PMSouthamptonUniversity12:25 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/16/2026 5:15:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/17/2026 12:25:00 AM. 50 Economy ticket for $26 per person are available. Travel duration is 7h 10m
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/16/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/17/2026 1:40:00 AM. 50 Economy ticket for $49 per person are available. Travel duration is 5h 10m
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National Express5h 10m05:30 PMSouthamptonBus Station10:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/16/2026 5:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/16/2026 10:40:00 PM. 50 Economy ticket for $58 per person are available. Travel duration is 5h 10m
Cheapest Buses Monday
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FlixBus9h 15m07:15 AMSouthamptonBus Station4:30 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/17/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/17/2026 4:30:00 PM. 50 Economy ticket for $21 per person are available. Travel duration is 9h 15m
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FlixBus7h 50m010:45 AMSouthamptonBus Station6:35 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/17/2026 10:45:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/17/2026 6:35:00 PM. 50 Economy ticket for $21 per person are available. Travel duration is 7h 50m
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FlixBus7h 25m05:00 PMSouthamptonBus Station12:25 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/17/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/18/2026 12:25:00 AM. 50 Economy ticket for $21 per person are available. Travel duration is 7h 25m
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/17/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/18/2026 1:40:00 AM. 50 Economy ticket for $42 per person are available. Travel duration is 5h 10m
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National Express6h 25m012:15 PMSouthamptonBus Station6:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/17/2026 12:15:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/17/2026 6:40:00 PM. 50 Economy ticket for $50 per person are available. Travel duration is 6h 25m
Cheapest Buses Tuesday
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Great Western Railway (GWR)2h 42m08:10 AMSouthamptonCentral Station10:52 AMCardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 2/18/2026 8:10:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/18/2026 10:52:00 AM. 50 Economy ticket for $16 per person are available. Travel duration is 2h 42m
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Great Western Railway (GWR)2h 35m09:11 AMSouthamptonCentral Station11:46 AMCardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 2/18/2026 9:11:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/18/2026 11:46:00 AM. 50 Economy ticket for $16 per person are available. Travel duration is 2h 35m
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South Western Railway3h 7m09:30 AMSouthamptonCentral Station12:37 PMCardiffCentral Station0EconomyA Train from South Western Railway goes from Central Station, Southampton (United Kingdom) at 2/18/2026 9:30:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/18/2026 12:37:00 PM. 50 Economy ticket for $151 per person are available. Travel duration is 3h 7m
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CrossCountry2h 25m09:15 AMSouthamptonCentral Station11:40 AMCardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 2/18/2026 9:15:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/18/2026 11:40:00 AM. 50 Economy ticket for $202 per person are available. Travel duration is 2h 25m
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CrossCountry2h 55m08:15 AMSouthamptonCentral Station11:10 AMCardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 2/18/2026 8:15:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/18/2026 11:10:00 AM. 50 Economy ticket for $218 per person are available. Travel duration is 2h 55m
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FlixBus7h 10m05:15 PMSouthamptonUniversity12:25 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/18/2026 5:15:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/19/2026 12:25:00 AM. 50 Economy ticket for $26 per person are available. Travel duration is 7h 10m
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FlixBus9h 15m07:15 AMSouthamptonBus Station4:30 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/18/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/18/2026 4:30:00 PM. 50 Economy ticket for $27 per person are available. Travel duration is 9h 15m
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FlixBus7h 25m05:00 PMSouthamptonBus Station12:25 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/18/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/19/2026 12:25:00 AM. 50 Economy ticket for $27 per person are available. Travel duration is 7h 25m
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/18/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/19/2026 1:40:00 AM. 50 Economy ticket for $49 per person are available. Travel duration is 5h 10m
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National Express6h 10m04:30 PMSouthamptonBus Station10:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/18/2026 4:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/18/2026 10:40:00 PM. 50 Economy ticket for $53 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. 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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CrossCountry2h 25m09:15 AMSouthamptonCentral Station11:40 AMCardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 2/12/2026 9:15:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/12/2026 11:40:00 AM. 50 Economy ticket for $201 per person are available. Travel duration is 2h 25m
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Great Western Railway (GWR)2h 35m09:11 AMSouthamptonCentral Station11:46 AMCardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 2/12/2026 9:11:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/12/2026 11:46:00 AM. 50 Economy ticket for $75 per person are available. Travel duration is 2h 35m
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Great Western Railway (GWR)2h 42m08:10 AMSouthamptonCentral Station10:52 AMCardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 2/12/2026 8:10:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/12/2026 10:52:00 AM. 50 Economy ticket for $75 per person are available. Travel duration is 2h 42m
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CrossCountry2h 52m08:15 AMSouthamptonCentral Station11:07 AMCardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 2/12/2026 8:15:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/12/2026 11:07:00 AM. 50 Economy ticket for $217 per person are available. Travel duration is 2h 52m
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South Western Railway3h 7m09:30 AMSouthamptonCentral Station12:37 PMCardiffCentral Station0EconomyA Train from South Western Railway goes from Central Station, Southampton (United Kingdom) at 2/12/2026 9:30:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/12/2026 12:37:00 PM. 50 Economy ticket for $150 per person are available. Travel duration is 3h 7m
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/12/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/13/2026 1:40:00 AM. 50 Economy ticket for $51 per person are available. Travel duration is 5h 10m
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National Express6h 10m04:30 PMSouthamptonBus Station10:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/12/2026 4:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/12/2026 10:40:00 PM. 50 Economy ticket for $60 per person are available. Travel duration is 6h 10m
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FlixBus7h 0m07:15 AMSouthamptonBus Station2:15 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/12/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/12/2026 2:15:00 PM. 50 Economy ticket for $42 per person are available. Travel duration is 7h 0m
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FlixBus7h 35m011:00 AMSouthamptonUniversity6:35 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/12/2026 11:00:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/12/2026 6:35:00 PM. 50 Economy ticket for $31 per person are available. Travel duration is 7h 35m
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FlixBus7h 50m010:45 AMSouthamptonBus Station6:35 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/12/2026 10:45:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/12/2026 6:35:00 PM. 50 Economy ticket for $31 per person are available. Travel duration is 7h 50m
Fastest Trains Thursday
Fastest Buses Thursday
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/13/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/14/2026 1:40:00 AM. 50 Economy ticket for $46 per person are available. Travel duration is 5h 10m
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National Express6h 15m010:45 AMSouthamptonBus Station5:00 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/13/2026 10:45:00 AM to Coach Station, Cardiff (United Kingdom) arriving at 2/13/2026 5:00:00 PM. 50 Economy ticket for $55 per person are available. Travel duration is 6h 15m
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FlixBus7h 0m07:15 AMSouthamptonBus Station2:15 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/13/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/13/2026 2:15:00 PM. 50 Economy ticket for $27 per person are available. Travel duration is 7h 0m
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FlixBus7h 5m05:15 PMSouthamptonUniversity12:20 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/13/2026 5:15:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/14/2026 12:20:00 AM. 50 Economy ticket for $25 per person are available. Travel duration is 7h 5m
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FlixBus7h 20m05:00 PMSouthamptonBus Station12:20 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/13/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/14/2026 12:20:00 AM. 50 Economy ticket for $25 per person are available. Travel duration is 7h 20m
Fastest Buses Friday
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/14/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/15/2026 1:40:00 AM. 50 Economy ticket for $46 per person are available. Travel duration is 5h 10m
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National Express5h 10m05:30 PMSouthamptonBus Station10:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/14/2026 5:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/14/2026 10:40:00 PM. 50 Economy ticket for $50 per person are available. Travel duration is 5h 10m
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FlixBus7h 0m07:15 AMSouthamptonBus Station2:15 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/14/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/14/2026 2:15:00 PM. 50 Economy ticket for $53 per person are available. Travel duration is 7h 0m
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FlixBus7h 5m05:15 PMSouthamptonUniversity12:20 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/14/2026 5:15:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/15/2026 12:20:00 AM. 50 Economy ticket for $29 per person are available. Travel duration is 7h 5m
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FlixBus7h 20m05:00 PMSouthamptonBus Station12:20 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/14/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/15/2026 12:20:00 AM. 50 Economy ticket for $29 per person are available. Travel duration is 7h 20m
Fastest Buses Saturday
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/15/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/16/2026 1:40:00 AM. 50 Economy ticket for $43 per person are available. Travel duration is 5h 10m
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National Express5h 10m05:30 PMSouthamptonBus Station10:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/15/2026 5:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/15/2026 10:40:00 PM. 50 Economy ticket for $58 per person are available. Travel duration is 5h 10m
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FlixBus6h 0m05:15 PMSouthamptonUniversity11:15 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/15/2026 5:15:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/15/2026 11:15:00 PM. 50 Economy ticket for $36 per person are available. Travel duration is 6h 0m
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FlixBus6h 15m05:00 PMSouthamptonBus Station11:15 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/15/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/15/2026 11:15:00 PM. 50 Economy ticket for $36 per person are available. Travel duration is 6h 15m
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FlixBus7h 50m010:45 AMSouthamptonBus Station6:35 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/15/2026 10:45:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/15/2026 6:35:00 PM. 50 Economy ticket for $40 per person are available. Travel duration is 7h 50m
Fastest Buses Sunday
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/16/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/17/2026 1:40:00 AM. 50 Economy ticket for $49 per person are available. Travel duration is 5h 10m
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National Express5h 10m05:30 PMSouthamptonBus Station10:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/16/2026 5:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/16/2026 10:40:00 PM. 50 Economy ticket for $58 per person are available. Travel duration is 5h 10m
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FlixBus7h 10m05:15 PMSouthamptonUniversity12:25 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/16/2026 5:15:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/17/2026 12:25:00 AM. 50 Economy ticket for $26 per person are available. Travel duration is 7h 10m
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FlixBus7h 25m05:00 PMSouthamptonBus Station12:25 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/16/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/17/2026 12:25:00 AM. 50 Economy ticket for $26 per person are available. Travel duration is 7h 25m
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FlixBus9h 15m07:15 AMSouthamptonBus Station4:30 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/16/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/16/2026 4:30:00 PM. 50 Economy ticket for $26 per person are available. Travel duration is 9h 15m
Fastest Buses Monday
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/17/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/18/2026 1:40:00 AM. 50 Economy ticket for $42 per person are available. Travel duration is 5h 10m
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National Express6h 25m012:15 PMSouthamptonBus Station6:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/17/2026 12:15:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/17/2026 6:40:00 PM. 50 Economy ticket for $50 per person are available. Travel duration is 6h 25m
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FlixBus7h 25m05:00 PMSouthamptonBus Station12:25 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/17/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/18/2026 12:25:00 AM. 50 Economy ticket for $21 per person are available. Travel duration is 7h 25m
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FlixBus7h 50m010:45 AMSouthamptonBus Station6:35 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/17/2026 10:45:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/17/2026 6:35:00 PM. 50 Economy ticket for $21 per person are available. Travel duration is 7h 50m
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FlixBus9h 15m07:15 AMSouthamptonBus Station4:30 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/17/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/17/2026 4:30:00 PM. 50 Economy ticket for $21 per person are available. Travel duration is 9h 15m
Fastest Buses Tuesday
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CrossCountry2h 25m09:15 AMSouthamptonCentral Station11:40 AMCardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 2/18/2026 9:15:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/18/2026 11:40:00 AM. 50 Economy ticket for $202 per person are available. Travel duration is 2h 25m
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Great Western Railway (GWR)2h 35m09:11 AMSouthamptonCentral Station11:46 AMCardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 2/18/2026 9:11:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/18/2026 11:46:00 AM. 50 Economy ticket for $16 per person are available. Travel duration is 2h 35m
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Great Western Railway (GWR)2h 42m08:10 AMSouthamptonCentral Station10:52 AMCardiffCentral Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Southampton (United Kingdom) at 2/18/2026 8:10:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/18/2026 10:52:00 AM. 50 Economy ticket for $16 per person are available. Travel duration is 2h 42m
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CrossCountry2h 55m08:15 AMSouthamptonCentral Station11:10 AMCardiffCentral Station0EconomyA Train from CrossCountry goes from Central Station, Southampton (United Kingdom) at 2/18/2026 8:15:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/18/2026 11:10:00 AM. 50 Economy ticket for $218 per person are available. Travel duration is 2h 55m
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South Western Railway3h 7m09:30 AMSouthamptonCentral Station12:37 PMCardiffCentral Station0EconomyA Train from South Western Railway goes from Central Station, Southampton (United Kingdom) at 2/18/2026 9:30:00 AM to Central Station, Cardiff (United Kingdom) arriving at 2/18/2026 12:37:00 PM. 50 Economy ticket for $151 per person are available. Travel duration is 3h 7m
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National Express5h 10m08:30 PMSouthamptonBus Station1:40 AMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/18/2026 8:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/19/2026 1:40:00 AM. 50 Economy ticket for $49 per person are available. Travel duration is 5h 10m
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National Express6h 10m04:30 PMSouthamptonBus Station10:40 PMCardiffCoach Station0EconomyA Bus from National Express goes from Bus Station, Southampton (United Kingdom) at 2/18/2026 4:30:00 PM to Coach Station, Cardiff (United Kingdom) arriving at 2/18/2026 10:40:00 PM. 50 Economy ticket for $53 per person are available. Travel duration is 6h 10m
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FlixBus7h 10m05:15 PMSouthamptonUniversity12:25 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from University, Southampton (United Kingdom) at 2/18/2026 5:15:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/19/2026 12:25:00 AM. 50 Economy ticket for $26 per person are available. Travel duration is 7h 10m
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FlixBus7h 25m05:00 PMSouthamptonBus Station12:25 AMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/18/2026 5:00:00 PM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/19/2026 12:25:00 AM. 50 Economy ticket for $27 per person are available. Travel duration is 7h 25m
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FlixBus9h 15m07:15 AMSouthamptonBus Station4:30 PMCardiffKingsway Bus Stop0EconomyA Bus from FlixBus goes from Bus Station, Southampton (United Kingdom) at 2/18/2026 7:15:00 AM to Kingsway Bus Stop, Cardiff (United Kingdom) arriving at 2/18/2026 4:30:00 PM. 50 Economy ticket for $27 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, Bus 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 $16 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 86.4 miles.
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 $16 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
