The average train between Greenwich and Swansea takes 3h 26m and the fastest train takes 3h 5m. There is a train service every few hours from Greenwich 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 Greenwich and Swansea. The earliest departure is at 12:09 AM at night, and the last departure from Greenwich is at 10:39 PM which arrives into Swansea at 9:02 AM. All services require a transfer, and take on average 3h 26m. The schedules shown below are for the next available departures.

3h 27m • 1 change

3h 26m • 1 change

3h 9m • 1 change

3h 8m • 1 change

3h 13m • 1 change

3h 6m • 1 change

3h 5m • 1 change

3h 10m • 1 change

8h 53m • 1 change

3h 13m • 1 change

3h 6m • 1 change

3h 5m • 1 change
Want to know about travelling from Greenwich 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 Greenwich to Swansea. However, there are services departing from Greenwich station and arriving at Swansea station via Swansea. The journey, including transfers, takes approximately 3h 26m.
Greenwich to Swansea train services, operated by Elizabeth Line (TfL), depart from London Paddington station.
Greenwich to Swansea train services, operated by Elizabeth Line (TfL), arrive at Swansea station.
Book your Greenwich to Swansea train tickets online with Elizabeth Line (TfL) and Great Western Railway (GWR).
The distance between Greenwich and Swansea is 272.7 km. The road distance is 317 km.
Great Western Railway (GWR) operates a train from London Paddington to Swansea hourly. Tickets cost £85–170 and the journey takes 2h 52m.