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The average train between Southampton and Carmarthen takes 5h 28m and the fastest train takes 4h 36m. There is a train service every few hours from Southampton 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 every 2 hours between Southampton and Carmarthen. The earliest departure is at 6:47 AM in the morning, and the last departure from Southampton is at 9:12 PM which arrives into Carmarthen at 11:52 AM. All services require a transfer, and take on average 5h 28m. The schedules shown below are for the next available departures.
5h 19m • 1 change5h 10m • 1 change4h 45m • 1 change5h 22m • 1 change4h 57m • 1 change5h 16m • 1 change5h 19m • 1 change4h 36m • 1 change4h 57m • 1 change5h 16m • 1 change5h 19m • 1 change4h 36m • 1 change4h 57m • 1 change5h 16m • 1 change5h 19m • 1 change4h 36m • 1 change4h 50m • 1 change4h 38m • 1 change4h 36m • 1 change4h 41m • 1 change5h 23m • 1 change5h • 1 change5h 28m • 1 change4h 55m • 1 change4h 57m • 1 change5h 16m • 1 change5h 19m • 1 change4h 36m • 1 changeWant to know about travelling from Southampton 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 Southampton to Carmarthen. However, there are services departing from Southampton Central station and arriving at Carmarthen station via Cardiff Central station. The journey, including transfers, takes approximately 5h 28m.
Southampton to Carmarthen train services, operated by Great Western Railway (GWR), depart from Southampton Central station.
Southampton to Carmarthen train services, operated by Transport for Wales, arrive at Carmarthen station.
Book your Southampton to Carmarthen train tickets online with Omio.
The distance between Southampton and Carmarthen is 227.4 km. The road distance is 283 km.
You can take a train from Southampton Central to Carmarthen via Cardiff Central in around 4h 54m.
