The average train between Northampton and Carmarthen takes 6h 3m and the fastest train takes 5h 11m. There is a train service every few hours from Northampton 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 Northampton and Carmarthen. The earliest departure is at 6:06 AM in the morning, and the last departure from Northampton is at 11:10 PM which arrives into Carmarthen at 10:30 AM. All services require a transfer at Birmingham New Street and take an average of 6h 3m. The schedules shown below are for the next available departures.


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5h 20m • 2 changesWant to know about travelling from Northampton 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 Northampton to Carmarthen. However, there are services departing from Northampton station and arriving at Carmarthen station via Birmingham New Street. The journey, including transfers, takes approximately 6h 3m.
Northampton to Carmarthen train services, operated by West Midlands Trains, depart from Northampton station.
Northampton to Carmarthen train services, operated by West Midlands Trains, arrive at Carmarthen station.
Book your Northampton to Carmarthen train tickets online with West Midlands Trains, Cross Country and 2 other operators.
The distance between Northampton and Carmarthen is 238 km. The road distance is 376 km.
You can take a train from Northampton to Carmarthen via Birmingham New Street and Cardiff Central in around 6h.