The average train between Uxbridge and Swansea takes 3h 22m and the fastest train takes 2h 52m. There is a train service every few hours from Uxbridge to Swansea. 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 Uxbridge and Swansea. The earliest departure is at 3:56 AM at night, and the last departure from Uxbridge is at 10:39 PM which arrives into Swansea at 2:11 AM. All services require a transfer, and take on average 3h 22m. The schedules shown below are for the next available departures.

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3h 6m • 1 changeWant to know about travelling from Uxbridge to Swansea? 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 Uxbridge to Swansea. However, there are services departing from Uxbridge station and arriving at Swansea station via Swansea. The journey, including transfers, takes approximately 3h 22m.
Uxbridge to Swansea train services, operated by Elizabeth Line (TfL), depart from Reading station.
Uxbridge to Swansea train services, operated by Elizabeth Line (TfL), arrive at Swansea station.
Book your Uxbridge to Swansea train tickets online with Elizabeth Line (TfL) and Great Western Railway (GWR).
The distance between Uxbridge and Swansea is 239.2 km. The road distance is 284 km.
Great Western Railway (GWR) operates a train from Reading to Swansea hourly. Tickets cost £65–120 and the journey takes 2h 21m.