The average train between Knighton and Carmarthen takes 3h 52m and the fastest train takes 3h 33m. The train service runs several times per day from Knighton 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 5 times a day between Knighton and Carmarthen. The earliest departure is at 6:46 AM in the morning, and the last departure from Knighton is at 7:26 PM which arrives into Carmarthen at 11:29 PM. All services require a transfer, and take on average 3h 52m. The schedules shown below are for the next available departures.

3h 45m • 1 change

3h 59m • 1 change

4h 7m • 1 change

3h 35m • 1 change

3h 39m • 1 change

3h 46m • 1 change

4h 4m • 1 change

3h 37m • 1 change

3h 45m • 1 change

3h 59m • 1 change

4h 7m • 1 change

3h 35m • 1 change

3h 45m • 1 change

3h 59m • 1 change

4h 7m • 1 change

3h 35m • 1 change

3h 45m • 1 change

3h 59m • 1 change

4h 7m • 1 change

3h 35m • 1 change

3h 45m • 1 change

3h 59m • 1 change

4h 7m • 1 change

3h 35m • 1 change
Want to know about travelling from Knighton 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 Knighton to Carmarthen. However, there are services departing from Knighton station and arriving at Carmarthen station via Llanelli. The journey, including transfers, takes approximately 3h 52m.
Knighton to Carmarthen train services, operated by Transport for Wales, depart from Knighton station.
Knighton to Carmarthen train services, operated by Transport for Wales, arrive at Llanelli station.
Book your Knighton to Carmarthen train tickets online with Transport for Wales and Great Western Railway (GWR).
The distance between Knighton and Carmarthen is 101.5 km. The road distance is 157 km.
Transport for Wales operates a train from Knighton to Llanelli 5 times a day. Tickets cost £30–55 and the journey takes 2h 40m.