The average bus between Portsmouth Harbour and Windsor Castle takes 2h 38m and the fastest bus takes 2h 14m. The bus service runs several times per day 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.
Buses run every 4 hours between Portsmouth Harbour and Windsor Castle. The earliest departure is at 3:20 AM at night, and the last departure from Portsmouth Harbour is at 8:10 PM which arrives into Windsor Castle at 11:10 PM. All services require a transfer at The Hard Interchange and take an average of 2h 38m. The schedules shown below are for the next available departures.

2h 19m • 1 change

2h 19m • 1 change

2h 48m • 1 change

2h 44m • 1 change

2h 19m • 1 change

2h 19m • 1 change

2h 48m • 1 change

2h 48m • 1 change

2h 19m • 1 change

2h 15m • 1 change

2h 41m • 1 change

2h 50m • 1 change

2h 19m • 1 change

2h 14m • 1 change

2h 41m • 1 change

2h 50m • 1 change

2h 19m • 1 change

2h 19m • 1 change

2h 48m • 1 change

2h 48m • 1 change

2h 19m • 1 change

2h 19m • 1 change

2h 48m • 1 change

2h 44m • 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 bus from Portsmouth Harbour to Windsor Castle. However, there are services departing from Portsmouth Harbour station and arriving at Windsor Castle station via Heathrow Terminal 5. The journey, including transfers, takes approximately 2h 38m.
Portsmouth Harbour to Windsor Castle bus services, operated by National Express, depart from The Hard Interchange station.
Portsmouth Harbour to Windsor Castle bus services, operated by National Express, arrive at Parish Church station.
The distance between Portsmouth Harbour and Windsor Castle is 84 km. The road distance is 118 km.
You can take a vehicle from Portsmouth Harbour to Windsor Castle via The Hard Interchange, Heathrow Terminal 5, and Parish Church in around 2h 35m.