The average train between Carmarthen and Plymouth takes 6h 27m and the fastest train takes 5h 4m. There is a train service every few hours from Carmarthen to Plymouth. 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 Plymouth. The earliest departure is at 6:01 AM in the morning, and the last departure from Carmarthen is at 10:43 PM which arrives into Plymouth at 9:34 AM. All services require a transfer at Cardiff Central and take an average of 6h 27m. The schedules shown below are for the next available departures.


5h 39m • 2 changes


5h 32m • 2 changes


5h 54m • 2 changes


5h 23m • 2 changes


5h 47m • 2 changes


5h 25m • 2 changes


5h 50m • 2 changes


5h 26m • 2 changes


5h 44m • 2 changes


5h 23m • 2 changes


5h 50m • 2 changes


5h 17m • 2 changes


5h 22m • 2 changes


5h 49m • 2 changes


6h • 2 changes


5h 32m • 2 changes
Want to know about travelling from Carmarthen to Plymouth? 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 Plymouth. However, there are services departing from Carmarthen station and arriving at Plymouth station via Cardiff Central. The journey, including transfers, takes approximately 6h 27m.
Carmarthen to Plymouth train services, operated by Transport for Wales, depart from Carmarthen station.
Carmarthen to Plymouth train services, operated by Transport for Wales, arrive at Plymouth station.
Book your Carmarthen to Plymouth train tickets online with Transport for Wales, Great Western Railway (GWR) and Cross Country.
The distance between Carmarthen and Plymouth is 165.4 km. The road distance is 388 km.
You can take a train from Carmarthen to Plymouth via Cardiff Central and Bristol Temple Meads in around 5h 38m.