The average bus between Swansea and Brentford takes 6h 36m and the fastest bus takes 4h 33m. The bus service runs several times per day from Swansea to Brentford. 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 3 times a day between Swansea and Brentford. The earliest departure is at 12:25 AM at night, and the last departure from Swansea is at 10:20 PM which arrives into Brentford at 3:51 AM. All services require a transfer, and take on average 6h 36m. The schedules shown below are for the next available departures.

4h 33m • 1 change
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9h 2m • 1 change
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5h 24m • 1 change

4h 43m • 1 change
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9h 22m • 1 change
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5h 24m • 1 change

4h 43m • 1 change
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9h 22m • 1 change
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5h 24m • 1 change

4h 43m • 1 change
Arrives next day

9h 22m • 1 change
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5h 24m • 1 change

4h 43m • 1 change
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9h 22m • 1 change
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5h 31m • 1 change
Want to know about travelling from Swansea to Brentford? 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 Brentford. However, there are services departing from Swansea station and arriving at Brentford station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 6h 36m.
Swansea to Brentford bus services, operated by National Express, depart from Swansea Bus Station Stand B.
Swansea to Brentford bus services, operated by National Express, arrive at Heathrow Central Bus Station.
The distance between Swansea and Brentford is 250.8 km. The road distance is 300 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.