The average train between Welwyn Garden City and Carmarthen takes 4h 54m and the fastest train takes 4h 25m. There is a train service every few hours from Welwyn Garden City 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 Welwyn Garden City and Carmarthen. The earliest departure is at 5:52 AM in the morning, and the last departure from Welwyn Garden City is at 9:52 PM which arrives into Carmarthen at 6:47 AM. All services require a transfer at London Kings Cross and take an average of 4h 54m. The schedules shown below are for the next available departures.
Arrives next day



4h 46m • 3 changes
Arrives next day



8h 55m • 3 changes



4h 39m • 3 changes



5h 7m • 3 changes



4h 58m • 3 changes



4h 48m • 3 changes



4h 39m • 3 changes



5h 7m • 3 changes



4h 58m • 3 changes



4h 48m • 3 changes



4h 39m • 3 changes



5h 7m • 3 changes



4h 58m • 3 changes



4h 48m • 3 changes
Want to know about travelling from Welwyn Garden City 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 Welwyn Garden City to Carmarthen. However, there are services departing from Welwyn Garden City station and arriving at Carmarthen station via Swansea. The journey, including transfers, takes approximately 4h 54m.
Welwyn Garden City to Carmarthen train services, operated by Great Northern, depart from London Paddington station.
Welwyn Garden City to Carmarthen train services, operated by Great Northern, arrive at Carmarthen station.
Book your Welwyn Garden City to Carmarthen train tickets online with Great Northern, London Underground (Tube) and 2 other operators.
The distance between Welwyn Garden City and Carmarthen is 281.7 km. The road distance is 393 km.
You can take a train from Welwyn Garden City to Carmarthen via London Kings Cross, King's Cross St. Pancras station, Paddington, London Paddington, and Swansea in around 5h 18m.