The average train between Reading and Portsmouth takes 1h 57m and the fastest train takes 1h 38m. There is a train service every few hours from Reading 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 Reading and Portsmouth. The earliest departure is at 6:20 AM in the morning, and the last departure from Reading is at 10:26 PM which arrives into Portsmouth at 12:20 AM. All services require a transfer, and take on average 1h 57m. The schedules shown below are for the next available departures.

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1h 46m • 1 change

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Want to know about travelling from Reading 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 Reading to Portsmouth. However, there are services departing from Reading station and arriving at Portsmouth station via Basingstoke. The journey, including transfers, takes approximately 1h 57m.
Reading to Portsmouth train services, operated by Great Western Railway (GWR), depart from Reading station.
Reading to Portsmouth train services, operated by Great Western Railway (GWR), arrive at Portsmouth & Southsea station.
Book your Reading to Portsmouth train tickets online with Great Western Railway (GWR), South Western Railway and Cross Country.
The distance between Reading and Portsmouth is 73.6 km. The road distance is 100 km.
You can take a train from Reading to Portsmouth & Southsea via Basingstoke in around 2h 8m.