The average bus between Grangemouth and Portsmouth takes 16h 1m and the fastest bus takes 13h 39m. The bus service runs several times per day from Grangemouth 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 Grangemouth and Portsmouth. The earliest departure is at 12:39 AM at night, and the last departure from Grangemouth is at 9:01 PM which arrives into Portsmouth at 10:50 AM. All services require a transfer at George Street and take an average of 16h 1m. The schedules shown below are for the next available departures.


21h 51m • 2 changesArrives next day


15h 48m • 2 changesArrives next day


14h 41m • 2 changes

21h 51m • 2 changesArrives next day


15h 48m • 2 changesArrives next day


14h 41m • 2 changesWant to know about travelling from Grangemouth 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 Grangemouth to Portsmouth. However, there are services departing from Grangemouth station and arriving at Portsmouth station via London Victoria. The journey, including transfers, takes approximately 16h 1m.
Grangemouth to Portsmouth bus services, operated by Ember, depart from Edinburgh, Bus Station.
Grangemouth to Portsmouth bus services, operated by Ember, arrive at St Georges Square station.
Book your Grangemouth to Portsmouth bus tickets online with Ember, FlixBus and National Express.
The distance between Grangemouth and Portsmouth is 605.1 km. The road distance is 772 km.
You can take a bus from Grangemouth to St Georges Square via George Street, Edinburgh, Bus Station, and London Victoria in around 13h 11m.