Cardiff to London Train Tickets



One Way


Expand your UK horizons with Great Western Railway by booking a scenic trip from Cardiff to London by train! GWR’s line of comfortable, stylish high-speed trains can reach speeds of up to 201 km/h, carrying you from Welsh capital to English capital in as little as 1 hour and 58 minutes’ time. Select the ticket option and seating class of your choice, then enjoy a memorable travel experience complemented by a variety of quality onboard services and amenities.

Your journey by train brings you to the heart of London, where English royalty, history and culture await you! During your visit, be sure to check out such iconic local attractions as Buckingham Palace, the Houses of Parliament, Big Ben clock tower and the scenic ‘London Eye’ Ferris wheel overlooking the Thames River. Fancy a bit of shopping? As a leading fashion center, London is just the place to shop for the exclusive, the trendy, and the unusual in designer clothes.

Purchase your Great Western Railway ‘Ticket on Departure & Reservation’ e-ticket here and you’ll receive your order confirmation along with a ticket collection reference number by email shortly thereafter. Simply use this number to retrieve your actual ticket from a local ticket collection machine and you’ll be set to travel from Cardiff to London by train, seat reservation included!

Journey Details


Trains depart every 30 minutes during peak times and every hour otherwise, with an average of 27 non-stop departures daily

Travel time

1 hour and 58 minutes non-stop (fastest time)

Train stations

Cardiff Central and London Paddington

Train features

Great Western Railway high-speed trains, reaching a maximum speed of 201km/h
Ticket Fares

When booking your ‘Ticket on Departure & Reservation’, the following fare options may be available:


Anytime tickets offer full flexibility. With no time restrictions, you are free to travel aboard any train, even during peak hours.


Advance tickets are less expensive, but have a limited availability. The sooner you book, the less you pay. Ideal for those committed to traveling on a particular date, time and train.


Off-peak tickets offer some flexibility, allowing you to travel aboard any train operating during off-peak hours on your ticket date. Though peak times may vary, they are typically before 9:30am and between 4:00pm and 7:00pm.
Ticket Classes

Standard Class

Standard class coaches provide comfortable, quality seating.

First Class

First class coaches are equipped with larger, reclining seats that offer superior comfort as well as plenty of leg and elbow room. Power outlets and work tables are also provided. Passengers can enjoy a warm customer welcome as well as complimentary at-seat food and drink service.
Ticket Discounts

Child discount

Children under 5 years of age travel for free. Children between the ages of 5 and 15 can save up to 50% off the adult ticket price.
Train Services and Amenities
  • Air-conditioned coaches
  • Onboard food and drink catering (subject to availability)
  • Free WiFi access
  • Designated storage areas for personal luggage items
  • “Quiet Coach” seating
  • Travel assistance for elderly and disabled passengers
  • Non-smoking coaches
Additional Details

Seat reservations

When booking your GWR ‘Ticket on Departure & Reservation’ e-ticket, the seat reservation will be included in most cases. Exceptions where the seat may not be reserved at the time of booking include shorter journeys that don’t offer seat reservations or when the allocation of reservable seats is fully booked. In either case, your ticket is still valid and you can sit in any vacant seat.

Ticket Purchase Conditions and Delivery

Tickets for travel from Cardiff to London by train may be booked up to 3 months in advance. Refunds and exchanges are not permitted.
Once your e-ticket order has been processed, you will receive an email confirmation with a ticket collection #. Collect your physical ticket simply by using this number at a self-service ticket dispensing machine at the station before boarding.

Read more about British rail tickets

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