The average bus between Southwark and Portsmouth takes 3h 17m and the fastest bus takes 2h 40m. There is a bus service every few hours from Southwark to Portsmouth. 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 Southwark and Portsmouth. The earliest departure is at 7:20 AM in the morning, and the last departure from Southwark is at 11:30 PM which arrives into Portsmouth at 2:18 AM. All services require a transfer at London Victoria Coach Station Arrivals and take an average of 3h 17m. The schedules shown below are for the next available departures.

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3h 15m • 1 changeWant to know about travelling from Southwark to Portsmouth? 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 Southwark to Portsmouth. However, there are services departing from Southwark station and arriving at Portsmouth station via University of Portsmouth. The journey, including transfers, takes approximately 3h 17m.
Southwark to Portsmouth bus services, operated by National Express, depart from London Victoria station.
Southwark to Portsmouth bus services, operated by National Express, arrive at University of Portsmouth station.
Book your Southwark to Portsmouth bus tickets online with National Express.
The distance between Southwark and Portsmouth is 104.3 km. The road distance is 138 km.
National Express operates a bus from London Victoria to University of Portsmouth hourly. Tickets cost £15–40 and the journey takes 2h 55m.