- Must visit
HMS Victory
A major naval museum where visitors can board Nelson’s flagship and explore life at sea through preserved decks and displays.
G15006
W34974
G15010
G15008
W35182 · G15101+
L79654
G15010
G15008
G15006
W34974
W35182 · G15101+
L79654Omio recommends booking the train as it is the most popular option from Cardiff to Portsmouth among Omio's users. If you are prioritising price take the coach with prices starting from £14. For those with little time consider booking a train which can get you there in 3h 20m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.0 - 0.1kg. The ticket price range depends on the travel mode: a coach costs an average of £14, and a train costs an average of £31.
Distance: 164 km
Most popular Train | Coach |
|---|---|
£70 Average Price | £29 Average Price Cheapest |
3h 50m Average total duration Fastest 3h 20m Onboard + 30m Additional time* | 6h 46m Average total duration 6h 16m Onboard + 30m Additional time* |
0.0 - 0.1kg CO2 emissions Lowest | 0.2 - 0.4kg CO2 emissions |
![]() Most popular train company | ![]() Most popular bus company |
Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
The table below shows live departures for Cardiff to Portsmouth trains for tomorrow, Wednesday 5 August. You can also manually refresh the results below to see updated train journeys.
| Provider | Departs | Duration | Arrives | Changes | Tickets |
|---|---|---|---|---|---|
W34974 | 8:27 Cardiff Central (CDF) | 3h20 | 11:47 Portsmouth & Southsea (PMS) | 0 changesdirect | |
G15042 · G15095+ L79595 | 8:38 Cardiff Central (CDF) | 4h05 | 12:43 Portsmouth & Southsea (PMS) | 2 changes | |
G15006 | 9:28 Cardiff Central (CDF) | 3h19 | 12:47 Portsmouth & Southsea (PMS) | 0 changesdirect | |
G15008 | 10:30 Cardiff Central (CDF) | 3h17 | 13:47 Portsmouth & Southsea (PMS) | 0 changesdirect | |
G15010 | 11:30 Cardiff Central (CDF) | 3h17 | 14:47 Portsmouth & Southsea (PMS) | 0 changesdirect | |
W35182 · G15101+ L79654 | 11:50 Cardiff Central (CDF) | 3h54 | 15:44 Portsmouth & Southsea (PMS) | 2 changes | |
This is the last train of the day. | |||||
Find all the dates and times for this journey
Compare train and coach prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Trains from Cardiff to Portsmouth run on average 6 times per day, taking around 3h 20m. Cheap train tickets for this journey start at £31 but you can travel from only £14 by coach.
There are 4 trains per day. The earliest train runs at 04:40, the last at 21:20. The fastest train covers the 164 km distance in 3h 16m.
Distance 164 km |
Average train duration 3h 20m |
Cheapest ticket price £31 |
Trains per day 6 |
Direct trains 4 |
Fastest train 3h 16m |
First train 4:40 |
Last train 21:20 |
Cheapest Month Jan |
Cheapest Day Sun |
High Season Jul - Sept |
Low Season Jan - Mar |
Busiest Day Fri |
Least Busy Day Sun |
Best time to book 21 days |
Discover the best of Portsmouth — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Portsmouth trip today.
A major naval museum where visitors can board Nelson’s flagship and explore life at sea through preserved decks and displays.
This working museum ship reveals cramped Victorian submarine life and the engineering behind one of Britain’s earliest submarines.
Portsmouth’s city museum covers local history, football heritage and art, with exhibits spanning the city’s people and places.
A historic waterfront district with cobbled lanes, pubs, sea walls and several key heritage sites within easy walking distance.
A long pebble beach promenade with piers, gardens and open sea views, well suited to relaxed walks along the Southsea seafront.
A broad common by the Solent, popular for walks, picnics and views of passing ships, the Isle of Wight and seafront landmarks.
A rich fruit cake packed with dried fruit, spice and treacle, long associated with Hampshire baking and often enjoyed at Christmas and local celebrations.
Fresh crab landed on the South Coast, usually served simply in sandwiches, salads or dressed shells, prized for sweet meat and Portsmouth’s seaside setting.
A classic Portsmouth and Hampshire pub dish of smoked haddock, potato and onion in a creamy sauce, baked until golden and comforting in coastal weather.
Popular Southsea spot for classic fish and chips and fresh seafood, with a casual atmosphere close to the seafront.
Smart waterfront restaurant in Old Portsmouth serving modern British dishes with strong seafood options in an elegant, relaxed setting.
Historic pub in Old Portsmouth known for traditional British cooking, cask ales and harbour views in a characterful setting.
Moderate for the UK. Hotels can be pricey in summer, but dining and local buses remain manageable for most city-break budgets.
Restaurants: 10-12.5% if not already added. Taxis: round up or 10%. Cafés and pubs: tipping is optional, though small change is appreciated for table service.
Official public transport app
Portsmouth Harbour -> Guildhall Square, Portsmouth
Find answers to the most common questions about traveling from Cardiff to Portsmouth by train. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest train, the cheapest option, or tips for making the most of your visit at Portsmouth, this guide helps you travel smarter and with confidence.

Most Cardiff to Portsmouth trains use the Cardiff Central to Portsmouth & Southsea station pair, with some services arriving at Portsmouth Harbour. Use this guide to compare Cardiff and Portsmouth train stations on this route, check city-centre transport, alongside checking practicalities like train station facilities and services.
Cardiff Central has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Lounge, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental and Car Rental.
Food options include: Gourmet Coffee Bar & Kitchen, Pret a Manger, Tesco Express
Free Wi-Fi in the station. ATMs are located outside of the main entrance.
The ticket office is open Mon - Fri: 05:40 - 21:30, Sat: 05:40 - 21:30, Sun: 07:30 - 21:30.
Lost and found is available at the station.
Available at Cardiff Central: Parking, Taxis, WC.
Available at Cardiff Central: Bike Parking, Bike Rental, Car Rental.
Accessibility facilities are available at Cardiff Central: There is step-free access in the whole station. There are also ramps for train access and elevators in the station.
Nearby hotels include Clayton Hotel Cardiff, Cardiff Marriott Hotel, Travelodge Cardiff Central.
Heath High Level is 4 km from Cardiff city centre. Public transport options include:
Heath High Level has practical services for this route, including Parking, Dining, Accessibility, Lost and Found Office, Bike Parking and Bike Rental.
Food and drink options are available at Heath High Level.
Lost and found is available at the station.
Available at Heath High Level: Parking.
Available at Heath High Level: Bike Parking, Bike Rental.
Accessibility facilities are available at Heath High Level: Staff help available: Yes, Step free access coverage: No, Step free access note: Category B3. The station is not suitable for wheelchair or powered mobility scooter users. Platform 1 (to Rhymney) has a long, steep access ramp. Platform 2 (to Cardiff) is only accessible via 41 steps. Customers travelling from the Rhymney Valley are advised to alight at Cardiff Queen Street and return to Heath Low Level, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: The ticket machine(s) do not accept cash. Payment is by major debit and credit cards only, Ramp for train access: Yes, Wheelchairs available: No, Impaired mobility set down / pick up points available: No.
Birchgrove is 4 km from Cardiff city centre. Public transport options include:
Birchgrove has practical services for this route, including Parking, Dining, Accessibility, Lost and Found Office, Bike Parking and Bike Rental.
Food and drink options are available at Birchgrove.
Lost and found is available at the station.
Available at Birchgrove: Parking.
Available at Birchgrove: Bike Parking, Bike Rental.
Accessibility facilities are available at Birchgrove: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Category B. Step free access is available from Waun y Groes Avenue, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: The ticket machine(s) do not accept cash. Payment is by major debit and credit cards only, Ramp for train access: Yes, Wheelchairs available: No, Impaired mobility set down / pick up points available: No.
Portsmouth & Southsea has practical services for this route, including Wifi, Parking, Dining, ATM, Accessibility, WC, Hotel, Lost and Found Office, Ticket Office, Bike Parking and Bike Rental.
Food and drink options are available at Portsmouth & Southsea.
Wi-Fi is available at Portsmouth & Southsea. ATMs are available at Portsmouth & Southsea.
Ticket office support is available at Portsmouth & Southsea.
Lost and found is available at the station.
Available at Portsmouth & Southsea: Parking, WC.
Available at Portsmouth & Southsea: Bike Parking, Bike Rental.
Accessibility facilities are available at Portsmouth & Southsea: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Step-free category A Station - This station has step-free access to all platforms. Please be aware that some platforms at this station have no or only partial tactile paving on the platform edge, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: No.
Portsmouth Harbour is 1 km from Portsmouth city centre. Public transport options include:
Portsmouth Harbour has practical services for this route, including Wifi, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental and Car Rental.
Food and drink options are available at Portsmouth Harbour.
Wi-Fi is available at Portsmouth Harbour. ATMs are available at Portsmouth Harbour.
Ticket office support is available at Portsmouth Harbour.
Lost and found is available at the station.
Available at Portsmouth Harbour: Parking, Taxis, WC.
Available at Portsmouth Harbour: Bike Parking, Bike Rental, Car Rental.
Accessibility facilities are available at Portsmouth Harbour: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Step-free category B Station - Steps or 20m ramp (approx. 1:11 gradient) to main entrance, or steps to side entrance. 32m ramp (gradient up to 1:8) from Wightlink IoW ferry terminal. Level access to all platforms. Stepped footbridge between platforms is also available. Please be aware that this station has no tactile paving on the platform edge, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: No.
Fratton is 1 km from Portsmouth city centre. Public transport options include:
Fratton has practical services for this route, including Wifi, Shopping, Parking, Dining, Accessibility, WC, Lost and Found Office, Ticket Office, Bike Parking, Bike Rental, Car Rental and Information Desk.
Food and drink options are available at Fratton.
Wi-Fi is available at Fratton.
Ticket office support is available at Fratton. Information desks are information available from staff: Yes - from help point, Helpline Contact: 0800 5282100.
Lost and found is available at the station.
Available at Fratton: Parking, WC.
Available at Fratton: Bike Parking, Bike Rental, Car Rental.
Accessibility facilities are available at Fratton: Staff help available: Yes, Step free access coverage: Yes, Step free access note: Step-free category A Station - This station has step-free access to all platforms, Accessible ticket machines: There are accessible ticket machines at this station, Accessible ticket machines note: All South Western Railway ticket machines are able to sell tickets with Disabled Persons Railcard discounts. All machines are accessible, however the station may not be so please check the station access note for further details, Accessible toilets: Yes, Ramp for train access: Yes, Wheelchairs available: Yes, Impaired mobility set down / pick up points available: No.
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