The average train between Swindon and Portsmouth Harbour takes 2h 49m and the fastest train takes 2h 26m. There is a train service every few hours from Swindon to Portsmouth Harbour. 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 Swindon and Portsmouth Harbour. The earliest departure is at 5:28 AM in the morning, and the last departure from Swindon is at 9:41 PM which arrives into Portsmouth Harbour at 12:25 AM. All services require a transfer at Reading and take an average of 2h 49m. The schedules shown below are for the next available departures.


2h 47m • 2 changes


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Want to know about travelling from Swindon to Portsmouth Harbour? 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 Swindon to Portsmouth Harbour. However, there are services departing from Swindon station and arriving at Portsmouth Harbour station via Reading. The journey, including transfers, takes approximately 2h 49m.
Swindon to Portsmouth Harbour train services, operated by Great Western Railway (GWR), depart from Swindon station.
Swindon to Portsmouth Harbour train services, operated by Great Western Railway (GWR), arrive at Portsmouth Harbour station.
Book your Swindon to Portsmouth Harbour train tickets online with Great Western Railway (GWR), South Western Railway and Cross Country.
The distance between Swindon and Portsmouth Harbour is 96.8 km. The road distance is 168 km.
You can take a train from Swindon to Portsmouth Harbour via Reading, Basingstoke, and Portsmouth Harbour in around 2h 58m.