The average bus between Portishead and Slough takes 3h 57m and the fastest bus takes 3h 30m. There is a bus service every few hours from Portishead to Slough. 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 Portishead and Slough. The earliest departure is at 5:41 AM in the morning, and the last departure from Portishead is at 11:10 PM which arrives into Slough at 3:25 AM. All services require a transfer at Bus Station and take an average of 3h 57m. The schedules shown below are for the next available departures.


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3h 58m • 2 changesArrives next day


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3h 44m • 2 changesWant to know about travelling from Portishead to Slough? 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 Portishead to Slough. However, there are services departing from Portishead station and arriving at Slough station via Bus Station station. The journey, including transfers, takes approximately 3h 57m.
Portishead to Slough bus services, operated by First Bristol, Bath & the West, depart from Combe Road station.
Portishead to Slough bus services, operated by First Bristol, Bath & the West, arrive at Heathrow Central Bus Station.
The distance between Portishead and Slough is 150.5 km. The road distance is 208 km.
You can take a bus from Combe Road to Wellington Street Stop H via Bus Station and Heathrow Central Bus Station in around 3h 45m.