| First train | 03:13 | |
|---|---|---|
| Last train | 23:41 | |
| Departure station | Watford | |
| Arrival station | Merthyr Tydfil | |
| Journey time | From 4h 17m | |
| Distance | 128 miles (206 km) | |
| Frequency | 17 trains per day | |
| Changes | 3 changes | |
| Train operators | Avanti West Coast, CrossCountry, Great Western Railway, London Overground, Southern, Transport for Wales |
Want to travel from Watford to Merthyr Tydfil by train? Start your journey with us.
It takes an average of 6 hours 6 minutes to travel from Watford to Merthyr Tydfil by train. You'll find on average 17 trains per day running on this route.
There aren't any direct services on this line, but it's still easy to travel to Merthyr Tydfil by train; you'll need to make 3 changes.
Avanti West Coast, Great Western Railway, Transport for Wales and CrossCountry trains run on this route.
Generally, booking Advance train tickets works out cheaper.
See our Journey Planner for up-to-date times and prices.
For more money-saving tips on UK and European train travel, read our cheap train tickets guide.