The average train between Carmarthen and Exeter takes 4h 24m and the fastest train takes 3h 36m. There is a train service every few hours from Carmarthen to Exeter. 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 Carmarthen and Exeter. The earliest departure is at 4:38 AM at night, and the last departure from Carmarthen is at 6:20 PM which arrives into Exeter at 10:41 PM. All services require a transfer at Swansea and take an average of 4h 24m. The schedules shown below are for the next available departures.


4h 29m • 2 changes


4h 13m • 2 changes


3h 53m • 2 changes


4h 20m • 2 changes


4h 29m • 2 changes


4h 13m • 2 changes


3h 53m • 2 changes


4h 20m • 2 changes


4h 29m • 2 changes


4h 13m • 2 changes


3h 53m • 2 changes


4h 20m • 2 changes


3h 44m • 2 changes


4h 22m • 2 changes


3h 53m • 2 changes


4h 13m • 2 changes
Want to know about travelling from Carmarthen to Exeter? 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 Carmarthen to Exeter. However, there are services departing from Carmarthen station and arriving at Exeter station via Swansea. The journey, including transfers, takes approximately 4h 24m.
Carmarthen to Exeter train services, operated by Transport for Wales, depart from Carmarthen station.
Carmarthen to Exeter train services, operated by Transport for Wales, arrive at Exeter St Davids station.
Book your Carmarthen to Exeter train tickets online with Transport for Wales, Great Western Railway (GWR) and Cross Country.
The distance between Carmarthen and Exeter is 137 km. The road distance is 308 km.
You can take a train from Carmarthen to Exeter St Davids via Swansea and Bristol Parkway in around 4h 52m.