The average train between Portsmouth Harbour and Windsor Castle takes 2h 56m and the fastest train takes 2h 41m. There is a train service every few hours from Portsmouth Harbour 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 Harbour and Windsor Castle. The earliest departure is at 4:30 AM at night, and the last departure from Portsmouth Harbour is at 10:33 PM which arrives into Windsor Castle at 7:26 AM. All services require a transfer at London Waterloo and take an average of 2h 56m. The schedules shown below are for the next available departures.

2h 53m • 1 change

3h 11m • 1 change

2h 41m • 1 change

2h 53m • 1 change

2h 59m • 1 change

3h 3m • 1 change

2h 46m • 1 change

2h 43m • 1 change

2h 59m • 1 change

3h 3m • 1 change

2h 46m • 1 change

2h 43m • 1 change

2h 41m • 1 change

2h 41m • 1 change

2h 41m • 1 change

2h 41m • 1 change
Want to know about travelling from Portsmouth Harbour 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 Harbour to Windsor Castle. However, there are services departing from Portsmouth Harbour station and arriving at Windsor Castle station via London Waterloo. The journey, including transfers, takes approximately 2h 56m.
Portsmouth Harbour to Windsor Castle train services, operated by South Western Railway, depart from Portsmouth Harbour station.
Portsmouth Harbour to Windsor Castle train services, operated by South Western Railway, arrive at Windsor & Eton Riverside station.
Book your Portsmouth Harbour to Windsor Castle train tickets online with South Western Railway.
The distance between Portsmouth Harbour and Windsor Castle is 84 km. The road distance is 160 km.
You can take a vehicle from Portsmouth Harbour to Windsor Castle via Portsmouth Harbour, London Waterloo, and Windsor & Eton Riverside in around 3h 1m.