The average train between Brentford and Swansea takes 3h 38m and the fastest train takes 3h 17m. There is a train service every few hours from Brentford 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 Brentford and Swansea. The earliest departure is at 6:01 AM in the morning, and the last departure from Brentford is at 11:39 PM which arrives into Swansea at 9:02 AM. All services require a transfer at Earl's Court station and take an average of 3h 38m. The schedules shown below are for the next available departures.


3h 27m • 2 changes


3h 23m • 2 changes


3h 22m • 2 changes


3h 20m • 2 changes


3h 32m • 2 changes


3h 22m • 2 changes


3h 23m • 2 changes


3h 26m • 2 changes


3h 32m • 2 changes


3h 22m • 2 changes


3h 23m • 2 changes


3h 26m • 2 changes
Want to know about travelling from Brentford 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 Brentford to Swansea. However, there are services departing from Brentford station and arriving at Swansea station via Swansea. The journey, including transfers, takes approximately 3h 38m.
Brentford to Swansea train services, operated by London Underground (Tube), depart from London Paddington station.
Brentford to Swansea train services, operated by London Underground (Tube), arrive at Swansea station.
Book your Brentford to Swansea train tickets online with London Underground (Tube) and Great Western Railway (GWR).
The distance between Brentford and Swansea is 250.8 km. The road distance is 319 km.
Great Western Railway (GWR) operates a train from London Paddington to Swansea hourly. Tickets cost £85–160 and the journey takes 2h 52m.