| First train | 05:56 | |
|---|---|---|
| Last train | 00:01 | |
| Departure station | Cardiff Bay | |
| Arrival station | London | |
| Journey time | From 2h 13m | |
| Distance | 131 miles (210 km) | |
| Frequency | 34 trains per day | |
| Changes | 1 change | |
| Price | From £47.50 | |
| Train operators | Great Western Railway, South Western Railway, Transport for Wales |
If you want to know more about the journey from Cardiff Bay to London by train, look no further!
The average journey time from Cardiff Bay to London by train is 4 hours 16 minutes, although on the fastest services it can take just 2 hours 13 minutes. You'll usually find 34 trains per day travelling the 131 miles (210 km) between these two destinations. You'll need to make 1 change along the way to London. You'll be travelling with Great Western Railway, Transport for Wales or South Western Railway on your way to London, as these are the main rail operators on this route.
Plan your trip ahead of time and book early if you want to snap up the cheapest fares. Tickets from Cardiff Bay to London start from £47.50 when you book in advance, so use our Journey Planner to view the latest prices. Travelling Off-Peak or using a Railcard are also great ways to save.
Keep reading for more information about the train journey to London, including FAQs, and tips on booking cheap train tickets. Check the timetable above for live train times or if you're ready to book, just start a search for tickets with us today.
For more money-saving tips on UK and European train travel, read our cheap train tickets guide.