The average bus between Slough and Southsea takes 2h 17m and the fastest bus takes 2h 3m. The bus service runs several times per day from Slough to Southsea. 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 every 4 hours between Slough and Southsea. The earliest departure is at 12:00 AM at night, and the last departure from Slough is at 10:30 PM which arrives into Southsea at 12:33 AM. All services require a transfer, and take on average 2h 17m. The schedules shown below are for the next available departures.

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2h 40m • 1 changeWant to know about travelling from Slough to Southsea? 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 Slough to Southsea. However, there are services departing from Slough station and arriving at Southsea station via Heathrow Terminal 5. The journey, including transfers, takes approximately 2h 17m.
Slough to Southsea bus services, operated by Thames Valley Buses, depart from Wellington Street Stop A station.
Slough to Southsea bus services, operated by Thames Valley Buses, arrive at University of Portsmouth station.
Book your Slough to Southsea bus tickets online with Thames Valley Buses and National Express.
The distance between Slough and Southsea is 87.8 km. The road distance is 115 km.
You can take a bus from Wellington Street Stop A to University of Portsmouth via Heathrow Terminal 5 in around 3h.