The average bus between Swansea and Southall takes 5h 15m and the fastest bus takes 4h 24m. There is a bus service every few hours from Swansea to Southall. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Buses run hourly between Swansea and Southall. The earliest departure is at 12:25 AM at night, and the last departure from Swansea is at 10:20 PM which arrives into Southall at 3:28 AM. All services require a transfer, and take on average 5h 15m. The schedules shown below are for the next available departures.

4h 36m • 1 change

5h 30m • 1 change

4h 43m • 1 change

5h 32m • 1 change

4h 36m • 1 change

5h 30m • 1 change

4h 43m • 1 change

5h 32m • 1 change

4h 36m • 1 change

5h 30m • 1 change

4h 43m • 1 change

5h 32m • 1 change

4h 24m • 1 change

5h 9m • 1 change

4h 33m • 1 change

5h 23m • 1 change
Want to know about travelling from Swansea to Southall? 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 bus from Swansea to Southall. However, there are services departing from Swansea station and arriving at Southall station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 5h 15m.
Swansea to Southall bus services, operated by National Express, depart from Swansea Bus Station Stand B.
Swansea to Southall bus services, operated by National Express, arrive at Heathrow Central Bus Station.
Book your Swansea to Southall bus tickets online with National Express and First Bus London.
The distance between Swansea and Southall is 247.2 km. The road distance is 299 km.
National Express operates a bus from Swansea Bus Station Stand B to Heathrow Central Bus Station hourly. Tickets cost £30–85 and the journey takes 4h 10m.