Trains from Cardiff to London depart from Cardiff Central station approximately twice an hour throughout the day, with direct journeys taking just under two hours. During the evenings, one train each hour changes at Bristol Temple Meads which increases the journey time by about 45 minutes.
Great Western Railway runs all the trains on this route. During your journey from Cardiff to London Paddington, you can enjoy free WiFi, snacks and hot and cold drinks, and plenty of space for your luggage in each carriage.
The average journey time by train between Cardiff Central and London Paddington is 2 hours and 24 minutes, with around 79 trains per day. The journey time may be longer on weekends and holidays, so use our Journey Planner on this page to search for a specific travel date.
The fastest journey time by train from Cardiff Central to London Paddington is 1 hour and 46 minutes.
Train ticket prices from Cardiff Central to London Paddington can start from as little as £15 when you book in advance. The cost of tickets can vary depending on the time of day, route and class you book and are usually more expensive if you book on the day.
Yes, it is possible to travel from Cardiff Central to London Paddington without having to change trains. There are 79 direct trains from Cardiff Central to London Paddington each day. Though there may be fewer direct services available depending on your exact departure date.
The first train from Cardiff Central to London Paddington leaves at 04:07. Times and services may vary during weekends and holidays.
The last train from Cardiff Central to London Paddington leaves at 22:03. Trains that depart in the early morning hours or very late evening may be sleeper services, time and services may also vary during weekends and holidays.
Trains travelling from Cardiff Central to London Paddington cover a distance of around 129 miles (208 km) during the journey.
If you catch this train more than 3 times per week, you could save money with a Season Ticket. With annual, monthly and weekly options available, find out if a season ticket for Cardiff Central to London Paddington is right for you.
National Railcards offer a 1/3 off eligible train tickets in the UK and can be a great investment if you travel a few times or more in a year. Find out how you can save with a National Railcard here.
Download our app to find split tickets — courtesy of SplitSave, our handy feature which 'splits' your train tickets where possible to find you a better deal. Learn more about the clever tech behind split tickets, and how to spot SplitSave discounts in our app.
For more money-saving tips on UK and European train travel, read our cheap train tickets guide.