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The average train between Harpenden and Carmarthen takes 4h 55m and the fastest train takes 4h 28m. There is a train service every few hours from Harpenden 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 Harpenden and Carmarthen. The earliest departure is at 12:12 AM at night, and the last departure from Harpenden is at 9:52 PM which arrives into Carmarthen at 6:47 AM. All services require a transfer at Farringdon and take an average of 4h 55m. The schedules shown below are for the next available departures.
4h 37m • 3 changes4h 29m • 3 changes4h 35m • 3 changes4h 41m • 3 changes4h 38m • 3 changes4h 47m • 3 changes4h 38m • 3 changes4h 34m • 3 changes4h 38m • 3 changes4h 47m • 3 changes4h 38m • 3 changes4h 34m • 3 changes4h 38m • 3 changes4h 47m • 3 changes4h 38m • 3 changes4h 34m • 3 changes4h 33m • 3 changes4h 57m • 3 changes4h 35m • 3 changes4h 56m • 3 changes12h 53m • 3 changes4h 58m • 3 changes4h 28m • 3 changes4h 33m • 3 changes4h 38m • 3 changes4h 47m • 3 changes4h 38m • 3 changes4h 34m • 3 changesWant to know about travelling from Harpenden 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 Harpenden to Carmarthen. However, there are services departing from Harpenden station and arriving at Carmarthen station via Farringdon station and Swansea station. The journey, including transfers, takes approximately 4h 55m.
Harpenden to Carmarthen train services, operated by Thameslink, depart from Harpenden station.
Harpenden to Carmarthen train services, operated by Transport for Wales, arrive at Carmarthen station.
Book your Harpenden to Carmarthen train tickets online with Omio.
The distance between Harpenden and Carmarthen is 271.3 km. The road distance is 327 km.
You can take a train from Harpenden to Carmarthen via Farringdon, Farringdon Without, London Paddington, and Swansea in around 5h 14m.
