The average train between Banbury and Portsmouth takes 3h 36m and the fastest train takes 2h 45m. There is a train service every few hours from Banbury 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.
Trains run hourly between Banbury and Portsmouth. The earliest departure is at 6:55 AM in the morning, and the last departure from Banbury is at 9:55 PM which arrives into Portsmouth at 8:12 AM. All services require a transfer, and take on average 3h 36m. The schedules shown below are for the next available departures.

3h 16m • 1 change

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3h 12m • 1 change

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3h 16m • 1 change

3h 14m • 1 change

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3h 14m • 1 change

3h 12m • 1 change
Want to know about travelling from Banbury 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 train from Banbury to Portsmouth. However, there are services departing from Banbury station and arriving at Portsmouth station via Basingstoke. The journey, including transfers, takes approximately 3h 36m.
Banbury to Portsmouth train services, operated by Cross Country, depart from Banbury station.
Banbury to Portsmouth train services, operated by Cross Country, arrive at Portsmouth & Southsea station.
Book your Banbury to Portsmouth train tickets online with Cross Country and South Western Railway.
The distance between Banbury and Portsmouth is 141.6 km. The road distance is 181 km.
You can take a train from Banbury to Portsmouth & Southsea via Basingstoke in around 3h 4m.