The average train between Slough and Southsea takes 2h 30m and the fastest train takes 2h 14m. There is a train service every few hours from Slough to Southsea. 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 Slough and Southsea. The earliest departure is at 5:36 AM in the morning, and the last departure from Slough is at 9:52 PM which arrives into Southsea at 12:17 AM. All services require a transfer at Reading and take an average of 2h 30m. The schedules shown below are for the next available departures.


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2h 43m • 2 changesWant to know about travelling from Slough to Southsea? 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 Slough to Southsea. However, there are services departing from Slough station and arriving at Fratton station via Reading station. The journey, including transfers, takes approximately 2h 30m.
Slough to Southsea train services, operated by Great Western Railway (GWR), depart from Slough station.
Slough to Southsea train services, operated by South Western Railway, arrive at Fratton station.
The distance between Slough and Southsea is 87.8 km. The road distance is 102 km.
You can take a train from Slough to Fratton via Reading and Basingstoke in around 2h 45m.