The average train between Cheltenham and Carmarthen takes 3h 42m and the fastest train takes 3h 2m. There is a train service every few hours from Cheltenham to Carmarthen. 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 Cheltenham and Carmarthen. The earliest departure is at 5:38 AM in the morning, and the last departure from Cheltenham is at 10:58 PM which arrives into Carmarthen at 7:42 AM. All services require a transfer, and take on average 3h 42m. The schedules shown below are for the next available departures.

3h 20m • 1 change
4h 3m • 1 changeArrives next day

3h 24m • 1 changeArrives next day

4h 23m • 1 change
3h 19m • 1 change
3h 49m • 1 change
3h 2m • 1 change
3h 21m • 1 change
3h 19m • 1 change
3h 49m • 1 change
3h 2m • 1 change
3h 21m • 1 change
3h 22m • 1 change
3h 41m • 1 change
3h 9m • 1 change
3h 12m • 1 changeWant to know about travelling from Cheltenham to Carmarthen? 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 Cheltenham to Carmarthen. However, there are services departing from Cheltenham station and arriving at Carmarthen station via Cardiff Central. The journey, including transfers, takes approximately 3h 42m.
Cheltenham to Carmarthen train services, operated by Cross Country, depart from Cheltenham Spa station.
Cheltenham to Carmarthen train services, operated by Cross Country, arrive at Carmarthen station.
Book your Cheltenham to Carmarthen train tickets online with Cross Country, Great Western Railway (GWR) and Transport for Wales.
The distance between Cheltenham and Carmarthen is 152.9 km. The road distance is 224 km.
You can take a train from Cheltenham Spa to Carmarthen via Cardiff Central in around 3h 22m.