The average train between Chepstow and Merthyr Tydfil takes 2h 16m and the fastest train takes 1h 37m. There is a train service every few hours from Chepstow to Merthyr Tydfil. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run hourly between Chepstow and Merthyr Tydfil. The earliest departure is at 6:17 AM in the morning, and the last departure from Chepstow is at 11:38 PM which arrives into Merthyr Tydfil at 6:33 AM. All services require a transfer, and take on average 2h 16m. The schedules shown below are for the next available departures.

1h 39m • 1 change

1h 39m • 1 change

1h 37m • 1 change

2h 14m • 1 change

1h 46m • 1 change

1h 45m • 1 change

2h 12m • 1 change

1h 39m • 1 change

1h 46m • 1 change

1h 45m • 1 change

2h 12m • 1 change

1h 39m • 1 change
Want to know about travelling from Chepstow to Merthyr Tydfil? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from Chepstow to Merthyr Tydfil. However, there are services departing from Chepstow station and arriving at Merthyr Tydfil station via Cardiff Central. The journey, including transfers, takes approximately 2h 16m.
Chepstow to Merthyr Tydfil train services, operated by Cross Country, depart from Chepstow station.
Chepstow to Merthyr Tydfil train services, operated by Cross Country, arrive at Merthyr Tydfil station.
Book your Chepstow to Merthyr Tydfil train tickets online with Cross Country and Transport for Wales.
The distance between Chepstow and Merthyr Tydfil is 49.8 km. The road distance is 85 km.
You can take a train from Chepstow to Merthyr Tydfil via Cardiff Central in around 2h 5m.