The average train between Luton and Llanelli takes 4h 30m and the fastest train takes 4h 6m. There is a train service every few hours from Luton to Llanelli. 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 Luton and Llanelli. The earliest departure is at 12:03 AM at night, and the last departure from Luton is at 9:43 PM which arrives into Llanelli at 5:08 AM. All services require a transfer at Farringdon and take an average of 4h 30m. The schedules shown below are for the next available departures.



4h 15m • 3 changes
Arrives next day



4h 21m • 3 changes
Arrives next day



4h 23m • 3 changes
Arrives next day



7h 48m • 3 changes



4h 18m • 3 changes



4h 6m • 3 changes



4h 12m • 3 changes



4h 14m • 3 changes



4h 13m • 3 changes



4h 14m • 3 changes



4h 15m • 3 changes



4h 39m • 3 changes



12h 29m • 3 changes



4h 35m • 3 changes



4h 8m • 3 changes



4h 13m • 3 changes
Want to know about travelling from Luton to Llanelli? 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 Luton to Llanelli. However, there are services departing from Luton station and arriving at Llanelli station via Farringdon. The journey, including transfers, takes approximately 4h 30m.
Luton to Llanelli train services, operated by Thameslink, depart from Luton station.
Luton to Llanelli train services, operated by Thameslink, arrive at Swansea station.
Book your Luton to Llanelli train tickets online with Thameslink, Elizabeth Line (TfL) and 2 other operators.
The distance between Luton and Llanelli is 258.5 km. The road distance is 379 km.
You can take a train from Luton to Llanelli via Farringdon, Farringdon Without, London Paddington, and Swansea in around 5h 16m.