The average train between Portsmouth and Windsor Castle takes 2h 51m and the fastest train takes 2h 35m. There is a train service every few hours from Portsmouth to Windsor Castle. 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 Portsmouth and Windsor Castle. The earliest departure is at 4:35 AM at night, and the last departure from Portsmouth is at 10:38 PM which arrives into Windsor Castle at 7:44 AM. All services require a transfer at Clapham Junction and take an average of 2h 51m. The schedules shown below are for the next available departures.

2h 54m • 1 change

2h 39m • 1 change

2h 35m • 1 change

2h 58m • 1 change

2h 54m • 1 change

2h 39m • 1 change

2h 35m • 1 change

2h 58m • 1 change

2h 40m • 1 change

2h 36m • 1 change

2h 49m • 1 change

2h 49m • 1 change

2h 57m • 1 change

2h 42m • 1 change

2h 56m • 1 change

2h 51m • 1 change
Want to know about travelling from Portsmouth to Windsor Castle? 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 Portsmouth to Windsor Castle. However, there are services departing from Portsmouth station and arriving at Windsor Castle station via Clapham Junction. The journey, including transfers, takes approximately 2h 51m.
Portsmouth to Windsor Castle train services, operated by South Western Railway, depart from Portsmouth & Southsea station.
Portsmouth to Windsor Castle train services, operated by South Western Railway, arrive at Windsor & Eton Riverside station.
Book your Portsmouth to Windsor Castle train tickets online with South Western Railway.
The distance between Portsmouth and Windsor Castle is 83.3 km. The road distance is 146 km.
You can take a train from Portsmouth & Southsea to Windsor Castle via Clapham Junction and Windsor & Eton Riverside in around 3h 1m.