The average train between Truro and Carmarthen takes 7h 10m and the fastest train takes 6h 18m. There is a train service every few hours from Truro 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 Truro and Carmarthen. The earliest departure is at 5:36 AM in the morning, and the last departure from Truro is at 10:29 PM which arrives into Carmarthen at 10:30 AM. All services require a transfer at Plymouth and take an average of 7h 10m. The schedules shown below are for the next available departures.



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6h 34m • 3 changesWant to know about travelling from Truro 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 Truro to Carmarthen. However, there are services departing from Truro station and arriving at Carmarthen station via Plymouth station, Bristol Parkway station and Swansea station. The journey, including transfers, takes approximately 7h 10m.
Truro to Carmarthen train services, operated by Great Western Railway (GWR), depart from Truro station.
Truro to Carmarthen train services, operated by Transport for Wales, arrive at Carmarthen station.
Book your Truro to Carmarthen train tickets online with Omio.
The distance between Truro and Carmarthen is 184.4 km. The road distance is 403 km.
You can take a train from Truro to Carmarthen via Plymouth, Bristol Parkway, and Swansea in around 7h 27m.