The average bus between Helensburgh and Portsmouth takes 15h 51m and the fastest bus takes 15h 17m. The bus service runs several times per day from Helensburgh 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 twice daily between Helensburgh and Portsmouth. The earliest departure is at 8:17 AM in the morning, and the last departure from Helensburgh is at 7:23 PM which arrives into Portsmouth at 10:40 AM. All services require a transfer at Shopping Centre Entrance and take an average of 15h 51m. The schedules shown below are for the next available departures.
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15h 58m • 3 changesArrives next day



15h 17m • 3 changesArrives next day



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16h 13m • 3 changesArrives next day



15h 34m • 3 changesWant to know about travelling from Helensburgh 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 Helensburgh to Portsmouth. However, there are services departing from Helensburgh station and arriving at Portsmouth station via London Victoria. The journey, including transfers, takes approximately 15h 51m.
Helensburgh to Portsmouth bus services, operated by First Greater Glasgow, depart from Buchanan Bus Station.
Helensburgh to Portsmouth bus services, operated by First Greater Glasgow, arrive at St Georges Square station.
Book your Helensburgh to Portsmouth bus tickets online with First Greater Glasgow, FlixBus and National Express.
The distance between Helensburgh and Portsmouth is 626.9 km. The road distance is 844 km.
You can take a bus from Helensburgh station to St Georges Square via Shopping Centre Entrance, Mitchell Street, Buchanan Bus Station, and London Victoria in around 15h 41m.