The average train between Devon and Carmarthen takes 5h 42m and the fastest train takes 4h 31m. There is a train service every few hours from Devon 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 every 2 hours between Devon and Carmarthen. The earliest departure is at 7:11 AM in the morning, and the last departure from Devon is at 11:22 PM which arrives into Carmarthen at 10:30 AM. All services require a transfer at Exeter St Davids and take an average of 5h 42m. The schedules shown below are for the next available departures.



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4h 31m • 3 changesArrives next day



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5h 6m • 3 changesWant to know about travelling from Devon 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 Devon to Carmarthen. However, there are services departing from Devon station and arriving at Carmarthen station via Bristol Parkway. The journey, including transfers, takes approximately 5h 42m.
Devon to Carmarthen train services, operated by Great Western Railway (GWR), depart from Exeter St Davids station.
Devon to Carmarthen train services, operated by Great Western Railway (GWR), arrive at Carmarthen station.
Book your Devon to Carmarthen train tickets online with Great Western Railway (GWR), Cross Country and Transport for Wales.
The distance between Devon and Carmarthen is 128.8 km. The road distance is 324 km.
You can take a train from Yeoford to Carmarthen via Exeter St Davids, Bristol Parkway, and Swansea in around 5h 19m.