The average train between Carmarthen and Uxbridge takes 4h 29m and the fastest train takes 3h 44m. There is a train service every few hours from Carmarthen to Uxbridge. 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 Carmarthen and Uxbridge. The earliest departure is at 4:37 AM at night, and the last departure from Carmarthen is at 10:41 PM which arrives into Uxbridge at 7:21 AM. All services require a transfer at Reading and take an average of 4h 29m. The schedules shown below are for the next available departures.


4h 39m • 2 changes


4h 8m • 2 changes


4h 5m • 2 changes


4h 31m • 2 changes


3h 44m • 2 changes


4h 28m • 2 changes


4h 8m • 2 changes


4h 7m • 2 changes


3h 44m • 2 changes


4h 26m • 2 changes


4h 8m • 2 changes


4h 7m • 2 changes
Want to know about travelling from Carmarthen to Uxbridge? 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 Carmarthen to Uxbridge. However, there are services departing from Carmarthen station and arriving at Uxbridge station via Reading. The journey, including transfers, takes approximately 4h 29m.
Carmarthen to Uxbridge train services, operated by Transport for Wales, depart from Carmarthen station.
Carmarthen to Uxbridge train services, operated by Transport for Wales, arrive at Reading station.
Book your Carmarthen to Uxbridge train tickets online with Transport for Wales, Great Western Railway (GWR) and Elizabeth Line (TfL).
The distance between Carmarthen and Uxbridge is 265.6 km. The road distance is 344 km.
Great Western Railway (GWR) operates a train from Carmarthen to Reading every 4 hours. Tickets cost £80–160 and the journey takes 3h 24m.