What is the best way to travel from Cardiff to Portsmouth?
Looking for a trip? Check and compare all the available Trains and Buses to Portsmouth from Cardiff. Look at different modes of transportation, search for the cheapest tickets, fastest rides and most popular stations, and see all 2 available companies to find your perfect trip!
What is the cheapest way to reach Portsmouth from Cardiff?
You can reach Portsmouth with just £13 by taking a Bus from National Express, 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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National Express7h 0m017:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 18/09/2026 17:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 00:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 15m015:45CardiffCoach Station23:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 18/09/2026 15:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 18/09/2026 23:00:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 15m
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National Express7h 25m007:30CardiffCoach Station14:55PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 18/09/2026 07:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 18/09/2026 14:55:00. 50 Economy ticket for £16 per person are available. Travel duration is 7h 25m
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National Express6h 30m019:45CardiffCoach Station02:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 18/09/2026 19:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 02:15:00. 50 Economy ticket for £23 per person are available. Travel duration is 6h 30m
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National Express7h 2m019:13Bristol AirportBristol Airport02:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 18/09/2026 19:13:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 02:15:00. 50 Economy ticket for £28 per person are available. Travel duration is 7h 2m
Cheapest Buses Friday
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National Express7h 0m016:00CardiffCoach Station23:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 19/09/2026 16:00:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 23:00:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 0m017:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 19/09/2026 17:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 20/09/2026 00:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express6h 20m005:55CardiffCoach Station12:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 19/09/2026 05:55:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 12:15:00. 50 Economy ticket for £20 per person are available. Travel duration is 6h 20m
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National Express7h 10m007:45CardiffCoach Station14:55PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 19/09/2026 07:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 14:55:00. 50 Economy ticket for £20 per person are available. Travel duration is 7h 10m
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National Express6h 53m016:12Bristol AirportBristol Airport23:05PortsmouthUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 19/09/2026 16:12:00 to University, Portsmouth (United Kingdom) arriving at 19/09/2026 23:05:00. 50 Economy ticket for £23 per person are available. Travel duration is 6h 53m
Cheapest Buses Saturday
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National Express6h 20m005:55CardiffCoach Station12:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 20/09/2026 05:55:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 20/09/2026 12:15:00. 50 Economy ticket for £13 per person are available. Travel duration is 6h 20m
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National Express7h 0m016:00CardiffCoach Station23:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 20/09/2026 16:00:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 20/09/2026 23:00:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 0m017:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 20/09/2026 17:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 21/09/2026 00:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 10m007:45CardiffCoach Station14:55PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 20/09/2026 07:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 20/09/2026 14:55:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 10m
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National Express7h 2m016:03Bristol AirportBristol Airport23:05PortsmouthUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 20/09/2026 16:03:00 to University, Portsmouth (United Kingdom) arriving at 20/09/2026 23:05:00. 50 Economy ticket for £20 per person are available. Travel duration is 7h 2m
Cheapest Buses Sunday
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National Express7h 0m017:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 21/09/2026 17:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 22/09/2026 00:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 25m007:30CardiffCoach Station14:55PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 21/09/2026 07:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 21/09/2026 14:55:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 25m
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National Express7h 15m015:45CardiffCoach Station23:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 21/09/2026 15:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 21/09/2026 23:00:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 15m
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National Express6h 30m019:45CardiffCoach Station02:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 21/09/2026 19:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 22/09/2026 02:15:00. 50 Economy ticket for £21 per person are available. Travel duration is 6h 30m
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National Express6h 55m014:55CardiffCoach Station21:50PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 21/09/2026 14:55:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 21/09/2026 21:50:00. 50 Economy ticket for £28 per person are available. Travel duration is 6h 55m
Cheapest Buses Monday
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National Express7h 15m015:15CardiffCoach Station22:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 22/09/2026 15:15:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 22/09/2026 22:30:00. 50 Economy ticket for £17 per person are available. Travel duration is 7h 15m
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National Express8h 0m016:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 22/09/2026 16:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 23/09/2026 00:30:00. 50 Economy ticket for £17 per person are available. Travel duration is 8h 0m
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National Express7h 30m008:35Bristol AirportBristol Airport16:05PortsmouthUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 22/09/2026 08:35:00 to University, Portsmouth (United Kingdom) arriving at 22/09/2026 16:05:00. 50 Economy ticket for £20 per person are available. Travel duration is 7h 30m
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National Express7h 30m008:30CardiffCoach Station16:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 22/09/2026 08:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 22/09/2026 16:00:00. 50 Economy ticket for £20 per person are available. Travel duration is 7h 30m
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National Express7h 10m012:30CardiffCoach Station19:40PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 22/09/2026 12:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 22/09/2026 19:40:00. 50 Economy ticket for £21 per person are available. Travel duration is 7h 10m
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Great Western Railway (GWR)3h 55m005:53CardiffCentral Station09:48PortsmouthPortsmouth & Southsea Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 22/09/2026 05:53:00 to Portsmouth & Southsea Station, Portsmouth (United Kingdom) arriving at 22/09/2026 09:48:00. 50 Economy ticket for £76 per person are available. Travel duration is 3h 55m
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Great Western Railway (GWR)3h 51m005:53CardiffCentral Station09:44PortsmouthFratton Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 22/09/2026 05:53:00 to Fratton Station, Portsmouth (United Kingdom) arriving at 22/09/2026 09:44:00. 50 Economy ticket for £76 per person are available. Travel duration is 3h 51m
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Great Western Railway (GWR)4h 5m005:07CardiffCentral Station09:12PortsmouthPortsmouth & Southsea Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 22/09/2026 05:07:00 to Portsmouth & Southsea Station, Portsmouth (United Kingdom) arriving at 22/09/2026 09:12:00. 50 Economy ticket for £123 per person are available. Travel duration is 4h 5m
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Great Western Railway (GWR)4h 1m005:07CardiffCentral Station09:08PortsmouthFratton Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 22/09/2026 05:07:00 to Fratton Station, Portsmouth (United Kingdom) arriving at 22/09/2026 09:08:00. 50 Economy ticket for £123 per person are available. Travel duration is 4h 1m
Cheapest Buses Tuesday
Cheapest Trains Tuesday
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National Express7h 0m009:00CardiffCoach Station16:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 23/09/2026 09:00:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 23/09/2026 16:00:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 10m012:30CardiffCoach Station19:40PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 23/09/2026 12:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 23/09/2026 19:40:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 10m
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National Express7h 25m008:35Bristol AirportBristol Airport16:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 23/09/2026 08:35:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 23/09/2026 16:00:00. 50 Economy ticket for £22 per person are available. Travel duration is 7h 25m
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National Express7h 30m008:35Bristol AirportBristol Airport16:05PortsmouthUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 23/09/2026 08:35:00 to University, Portsmouth (United Kingdom) arriving at 23/09/2026 16:05:00. 50 Economy ticket for £22 per person are available. Travel duration is 7h 30m
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National Express7h 0m019:15CardiffCoach Station02:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 23/09/2026 19:15:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 24/09/2026 02:15:00. 50 Economy ticket for £23 per person are available. Travel duration is 7h 0m
Cheapest Buses Wednesday
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National Express7h 30m008:30CardiffCoach Station16:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 24/09/2026 08:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 24/09/2026 16:00:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 30m
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National Express7h 10m012:30CardiffCoach Station19:40PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 24/09/2026 12:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 24/09/2026 19:40:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 10m
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National Express7h 15m015:15CardiffCoach Station22:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 24/09/2026 15:15:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 24/09/2026 22:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 15m
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National Express8h 0m016:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 24/09/2026 16:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 25/09/2026 00:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 8h 0m
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National Express7h 30m018:45CardiffCoach Station02:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 24/09/2026 18:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 25/09/2026 02:15:00. 50 Economy ticket for £23 per person are available. Travel duration is 7h 30m
Cheapest Buses Thursday
What are the fastest trips from Cardiff to Portsmouth?
You can get to Portsmouth from Cardiff in just 3h 51m with a Train from Great Western Railway (GWR). 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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National Express6h 30m019:45CardiffCoach Station02:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 18/09/2026 19:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 02:15:00. 50 Economy ticket for £23 per person are available. Travel duration is 6h 30m
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National Express7h 0m017:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 18/09/2026 17:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 00:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 2m019:13Bristol AirportBristol Airport02:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 18/09/2026 19:13:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 02:15:00. 50 Economy ticket for £28 per person are available. Travel duration is 7h 2m
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National Express7h 15m015:45CardiffCoach Station23:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 18/09/2026 15:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 18/09/2026 23:00:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 15m
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National Express7h 25m007:30CardiffCoach Station14:55PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 18/09/2026 07:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 18/09/2026 14:55:00. 50 Economy ticket for £16 per person are available. Travel duration is 7h 25m
Fastest Buses Friday
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National Express6h 20m005:55CardiffCoach Station12:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 19/09/2026 05:55:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 12:15:00. 50 Economy ticket for £20 per person are available. Travel duration is 6h 20m
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National Express6h 53m016:12Bristol AirportBristol Airport23:05PortsmouthUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 19/09/2026 16:12:00 to University, Portsmouth (United Kingdom) arriving at 19/09/2026 23:05:00. 50 Economy ticket for £23 per person are available. Travel duration is 6h 53m
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National Express7h 0m016:00CardiffCoach Station23:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 19/09/2026 16:00:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 23:00:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 0m017:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 19/09/2026 17:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 20/09/2026 00:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 10m007:45CardiffCoach Station14:55PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 19/09/2026 07:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 19/09/2026 14:55:00. 50 Economy ticket for £20 per person are available. Travel duration is 7h 10m
Fastest Buses Saturday
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National Express6h 20m005:55CardiffCoach Station12:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 20/09/2026 05:55:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 20/09/2026 12:15:00. 50 Economy ticket for £13 per person are available. Travel duration is 6h 20m
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National Express7h 0m016:00CardiffCoach Station23:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 20/09/2026 16:00:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 20/09/2026 23:00:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 0m017:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 20/09/2026 17:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 21/09/2026 00:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 2m016:03Bristol AirportBristol Airport23:05PortsmouthUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 20/09/2026 16:03:00 to University, Portsmouth (United Kingdom) arriving at 20/09/2026 23:05:00. 50 Economy ticket for £20 per person are available. Travel duration is 7h 2m
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National Express7h 10m007:45CardiffCoach Station14:55PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 20/09/2026 07:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 20/09/2026 14:55:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 10m
Fastest Buses Sunday
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National Express6h 30m019:45CardiffCoach Station02:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 21/09/2026 19:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 22/09/2026 02:15:00. 50 Economy ticket for £21 per person are available. Travel duration is 6h 30m
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National Express6h 55m014:55CardiffCoach Station21:50PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 21/09/2026 14:55:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 21/09/2026 21:50:00. 50 Economy ticket for £28 per person are available. Travel duration is 6h 55m
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National Express7h 0m017:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 21/09/2026 17:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 22/09/2026 00:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 15m015:45CardiffCoach Station23:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 21/09/2026 15:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 21/09/2026 23:00:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 15m
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National Express7h 25m007:30CardiffCoach Station14:55PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 21/09/2026 07:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 21/09/2026 14:55:00. 50 Economy ticket for £15 per person are available. Travel duration is 7h 25m
Fastest Buses Monday
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Great Western Railway (GWR)3h 51m005:53CardiffCentral Station09:44PortsmouthFratton Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 22/09/2026 05:53:00 to Fratton Station, Portsmouth (United Kingdom) arriving at 22/09/2026 09:44:00. 50 Economy ticket for £76 per person are available. Travel duration is 3h 51m
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Great Western Railway (GWR)3h 55m005:53CardiffCentral Station09:48PortsmouthPortsmouth & Southsea Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 22/09/2026 05:53:00 to Portsmouth & Southsea Station, Portsmouth (United Kingdom) arriving at 22/09/2026 09:48:00. 50 Economy ticket for £76 per person are available. Travel duration is 3h 55m
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Great Western Railway (GWR)4h 1m005:07CardiffCentral Station09:08PortsmouthFratton Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 22/09/2026 05:07:00 to Fratton Station, Portsmouth (United Kingdom) arriving at 22/09/2026 09:08:00. 50 Economy ticket for £123 per person are available. Travel duration is 4h 1m
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Great Western Railway (GWR)4h 5m005:07CardiffCentral Station09:12PortsmouthPortsmouth & Southsea Station0EconomyA Train from Great Western Railway (GWR) goes from Central Station, Cardiff (United Kingdom) at 22/09/2026 05:07:00 to Portsmouth & Southsea Station, Portsmouth (United Kingdom) arriving at 22/09/2026 09:12:00. 50 Economy ticket for £123 per person are available. Travel duration is 4h 5m
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National Express7h 10m012:30CardiffCoach Station19:40PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 22/09/2026 12:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 22/09/2026 19:40:00. 50 Economy ticket for £21 per person are available. Travel duration is 7h 10m
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National Express7h 15m015:15CardiffCoach Station22:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 22/09/2026 15:15:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 22/09/2026 22:30:00. 50 Economy ticket for £17 per person are available. Travel duration is 7h 15m
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National Express7h 30m008:35Bristol AirportBristol Airport16:05PortsmouthUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 22/09/2026 08:35:00 to University, Portsmouth (United Kingdom) arriving at 22/09/2026 16:05:00. 50 Economy ticket for £20 per person are available. Travel duration is 7h 30m
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National Express7h 30m008:30CardiffCoach Station16:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 22/09/2026 08:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 22/09/2026 16:00:00. 50 Economy ticket for £20 per person are available. Travel duration is 7h 30m
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National Express8h 0m016:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 22/09/2026 16:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 23/09/2026 00:30:00. 50 Economy ticket for £17 per person are available. Travel duration is 8h 0m
Fastest Trains Tuesday
Fastest Buses Tuesday
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National Express7h 0m009:00CardiffCoach Station16:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 23/09/2026 09:00:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 23/09/2026 16:00:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 0m
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National Express7h 0m019:15CardiffCoach Station02:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 23/09/2026 19:15:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 24/09/2026 02:15:00. 50 Economy ticket for £23 per person are available. Travel duration is 7h 0m
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National Express7h 10m012:30CardiffCoach Station19:40PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 23/09/2026 12:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 23/09/2026 19:40:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 10m
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National Express7h 25m008:35Bristol AirportBristol Airport16:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 23/09/2026 08:35:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 23/09/2026 16:00:00. 50 Economy ticket for £22 per person are available. Travel duration is 7h 25m
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National Express7h 30m008:35Bristol AirportBristol Airport16:05PortsmouthUniversity0EconomyA Bus from National Express goes from Bristol Airport, Bristol Airport (United Kingdom) at 23/09/2026 08:35:00 to University, Portsmouth (United Kingdom) arriving at 23/09/2026 16:05:00. 50 Economy ticket for £22 per person are available. Travel duration is 7h 30m
Fastest Buses Wednesday
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National Express7h 10m012:30CardiffCoach Station19:40PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 24/09/2026 12:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 24/09/2026 19:40:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 10m
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National Express7h 15m015:15CardiffCoach Station22:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 24/09/2026 15:15:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 24/09/2026 22:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 15m
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National Express7h 30m008:30CardiffCoach Station16:00PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 24/09/2026 08:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 24/09/2026 16:00:00. 50 Economy ticket for £13 per person are available. Travel duration is 7h 30m
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National Express7h 30m018:45CardiffCoach Station02:15PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 24/09/2026 18:45:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 25/09/2026 02:15:00. 50 Economy ticket for £23 per person are available. Travel duration is 7h 30m
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National Express8h 0m016:30CardiffCoach Station00:30PortsmouthThe Hard Interchange0EconomyA Bus from National Express goes from Coach Station, Cardiff (United Kingdom) at 24/09/2026 16:30:00 to The Hard Interchange, Portsmouth (United Kingdom) arriving at 25/09/2026 00:30:00. 50 Economy ticket for £13 per person are available. Travel duration is 8h 0m
Fastest Buses Thursday
Here you will find all operators and timetables for a
Bus from Cardiff to Portsmouth
What are the most popular stations in Cardiff and Portsmouth?
In Cardiff, you will usually depart from Coach Station, Bus Interchange or National Museum, while in Portsmouth you will be arriving at Gunwharf, The Hard Interchange or City Shops South (Stop D) Bus 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 Portsmouth from Cardiff? With 5 connections between 2 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 Cardiff and Portsmouth, you can pay as low as £13 with a Bus from National Express.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 Portsmouth in just 3h 51m.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 Portsmouth are 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 Portsmouth 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 Hilsea, and look at flights from Cardiff Airport, and landing at Southampton 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 Portsmouth?
The most popular companies between Cardiff and Portsmouth, are National Express and Great Western Railway (GWR). Be sure to check their seat class offers and the amenities that they provide.
Bus companies: National Express
Train companies: Great Western Railway (GWR)
All you need to know when you travel from Cardiff to Portsmouth
Check all information on comfort and services on all modes of transports from Cardiff to Portsmouth. 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 Portsmouth
How can I reach Portsmouth from Cardiff?
Every day, there are on average 5 connections between Train and Bus, with which you can get to Portsmouth from Cardiff.
How far is Portsmouth from Cardiff?
The distance between Cardiff and Portsmouth is 163.8 km.
What is the most ecofriendly mode of transport between Cardiff and Portsmouth?
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 6 kgs, a car 28 kgs, and a flight 40 kgs.
What is the cheapest mode of transport from Cardiff to Portsmouth?
You can get to Portsmouth with just £13 by taking a Bus from National Express.
What is the fastest way to get from Cardiff to Portsmouth?
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 Portsmouth in just 3h 51m with a Train from Great Western Railway (GWR).
More routes to Cardiff and to Portsmouth
Looking for more options? Here you can see the most popular routes to Cardiff and to Portsmouth. Simply click on a connection, and you’ll find all the details about the route!
