Cardiff to London Trains From £47.00*

When travelling from Cardiff to London, check the TrainPal Train Journey Planner. The average journey time is 1h 47m, covering 131 miles (211 km). There are 34 trains available each day, from the first departure at 05:07 to the last at 23:34.

Departing from Cardiff Central

The quickest train from Cardiff to London departs from Cardiff Central, located in the city centre. Cardiff Central is a major rail hub, connecting destinations across Wales and the UK. It serves as a key interchange for the Valleys & Cardiff Local Routes and is accessible by bus, taxi, or car.

Primary operators at Cardiff Central include Transport for Wales, Great Western Railway, and CrossCountry, linking cities such as Swansea, Newport, Bangor, Manchester, Birmingham, Nottingham, and Newcastle.

Main stops

Stops on this route typically include Newport(South Wales), Bristol Parkway, Swindon(Wilts), and Reading, but may vary by time and operator.

Arriving at London Paddington

The fastest train from Cardiff to London arrives at London Paddington, a major railway and Underground station at Praed Street, Paddington, London W2 1HQ. Key operators include Great Western Railway, Elizabeth Line, and Heathrow Express.

This station is a crucial transport hub, offering services to Heathrow Airport and destinations in the west of England and Wales, such as Bristol Temple Meads, Exeter St Davids, and Oxford.

London Paddington connects directly to the Bakerloo, Circle, District, and Hammersmith & City lines. Nearby attractions include The Savoy, the London Eye, The Regent’s Park, and the Royal Albert Hall.

Great Western Railway trains from Cardiff Central to London Paddington take around 1 hour and 49 minutes. The journey offers breathtaking views of South Wales' rolling hills, the scenic Cotswolds countryside, and the delightful outskirts of London.

Great Western Railway, an iconic British railway, connects London to cities like Bristol, Cardiff, and Exeter. For over 180 years, GWR has been celebrated for its exceptional service, reliability, and passenger comfort. Experience seamless travel across South West England and Wales with GWR.

Great Western Railway Standard Class

In Standard Class on the GWR, passengers benefit from family-sized tables, power sockets, and plenty of space for luggage.

Great Western Railway First Class

GWR offers free refreshments, improved Wi-Fi, and power socket-equipped tables at your spacious seat.

Travel with Great Western Railway

We deliver essential travel info, such as baggage limits, bike policies, travelling with children and pets, and assistance services.

• Luggage: You can bring three pieces of luggage, but items larger than 30 x 70 x 90 cm are prohibited.
• Bicycles: Folding bikes with wheels up to 20 inches are allowed. E-scooters are not permitted anywhere on board.
• Children: Children under 5 travel free on most journeys, ages 5-15 get 50% off, and 16-year-olds use the 16-17 Saver for 50% off.
• Pets: Each customer may bring up to two small pets, such as dogs or cats, at no extra charge.
• Passenger Assist: Services for passengers with special needs include assistance, help boarding, reserving wheelchair spaces, detailed rail info, and pet assistance.