The average train between Carmarthen and Kemble takes 3h 39m and the fastest train takes 3h 2m. There is a train service every few hours from Carmarthen to Kemble. 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 Kemble. The earliest departure is at 4:37 AM at night, and the last departure from Carmarthen is at 10:41 PM which arrives into Kemble at 6:43 AM. All services require a transfer at Swansea and take an average of 3h 39m. The schedules shown below are for the next available departures.


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3h 11m • 2 changesWant to know about travelling from Carmarthen to Kemble? 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 Kemble. However, there are services departing from Carmarthen station and arriving at Kemble station via Swansea. The journey, including transfers, takes approximately 3h 39m.
Carmarthen to Kemble train services, operated by Great Western Railway (GWR), depart from Carmarthen station.
Carmarthen to Kemble train services, operated by Great Western Railway (GWR), arrive at Swindon station.
Book your Carmarthen to Kemble train tickets online with Great Western Railway (GWR) and Transport for Wales.
The distance between Carmarthen and Kemble is 158.7 km. The road distance is 254 km.
You can take a train from Carmarthen to Kemble via Swansea and Swindon in around 4h 4m.