The average train between Brighton and Carmarthen takes 5h 36m and the fastest train takes 5h 7m. There is a train service every few hours from Brighton 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 Brighton and Carmarthen. The earliest departure is at 5:06 AM in the morning, and the last departure from Brighton is at 9:14 PM which arrives into Carmarthen at 6:47 AM. All services require a transfer at Farringdon and take an average of 5h 36m. The schedules shown below are for the next available departures.



5h 36m • 3 changes



5h 27m • 3 changes



5h 17m • 3 changes



5h 16m • 3 changes



5h 25m • 3 changes



5h 36m • 3 changes



5h 27m • 3 changes



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5h 25m • 3 changes



5h 36m • 3 changes



5h 27m • 3 changes



5h 17m • 3 changes
Want to know about travelling from Brighton 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 Brighton to Carmarthen. However, there are services departing from Brighton station and arriving at Carmarthen station via Farringdon. The journey, including transfers, takes approximately 5h 36m.
Brighton to Carmarthen train services, operated by Thameslink, depart from Brighton station.
Brighton to Carmarthen train services, operated by Thameslink, arrive at Carmarthen station.
Book your Brighton to Carmarthen train tickets online with Thameslink, Elizabeth Line (TfL) and 2 other operators.
The distance between Brighton and Carmarthen is 311 km. The road distance is 445 km.
You can take a train from Brighton to Carmarthen via Farringdon, Farringdon Without, London Paddington, and Swansea in around 6h 5m.