The average train between Winchester and Carmarthen takes 4h 2m and the fastest train takes 3h 45m. There is a train service every few hours from Winchester 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 Winchester and Carmarthen. The earliest departure is at 6:33 AM in the morning, and the last departure from Winchester is at 8:33 PM which arrives into Carmarthen at 12:37 AM. All services require a transfer at Reading and take an average of 4h 2m. The schedules shown below are for the next available departures.


4h 14m • 2 changes


3h 55m • 2 changes


4h 18m • 2 changes


3h 58m • 2 changes


4h 25m • 2 changes


3h 48m • 2 changes


4h 5m • 2 changes


3h 53m • 2 changes


3h 57m • 2 changes


4h 13m • 2 changes


4h 5m • 2 changes


3h 58m • 2 changes


3h 57m • 2 changes


4h 13m • 2 changes


4h 5m • 2 changes


3h 58m • 2 changes
Want to know about travelling from Winchester 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 Winchester to Carmarthen. However, there are services departing from Winchester station and arriving at Carmarthen station via Reading. The journey, including transfers, takes approximately 4h 2m.
Winchester to Carmarthen train services, operated by Cross Country, depart from Winchester station.
Winchester to Carmarthen train services, operated by Cross Country, arrive at Carmarthen station.
Book your Winchester to Carmarthen train tickets online with Cross Country, Great Western Railway (GWR) and Transport for Wales.
The distance between Winchester and Carmarthen is 224.8 km. The road distance is 354 km.
You can take a train from Winchester to Carmarthen via Reading and Swansea in around 4h 37m.