The average bus between Heathrow Terminal 3 and Windsor Castle takes 56 min and the fastest bus takes 41 min. The bus runs at least 2 times per hour from Heathrow Terminal 3 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 30 minutes between Heathrow Terminal 3 and Windsor Castle. The earliest departure is at 12:05 AM at night, and the last departure from Heathrow Terminal 3 is at 11:05 PM which arrives into Windsor Castle at 11:48 PM. All services require a transfer at Heathrow Central Bus Station and take an average of 56 min. The schedules shown below are for the next available departures.

42 min • 1 change
1h 5m • 1 change
1h 3m • 1 change
43 min • 1 change
1h • 1 change
1h 2m • 1 change
1h 5m • 1 change
44 min • 1 change
43 min • 1 change
1h • 1 change
1h 2m • 1 change
1h 5m • 1 changeWant to know about travelling from Heathrow Terminal 3 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 Heathrow Terminal 3 to Windsor Castle. However, there are services departing from Heathrow Terminal 3 station and arriving at Windsor Castle station via Wellington Street Stop H. The journey, including transfers, takes approximately 56 min.
Heathrow Terminal 3 to Windsor Castle bus services, operated by First Berkshire & The Thames Valley, depart from Heathrow Central Bus Station.
Heathrow Terminal 3 to Windsor Castle bus services, operated by First Berkshire & The Thames Valley, arrive at Windsor Castle station.
Book your Heathrow Terminal 3 to Windsor Castle bus tickets online with First Berkshire & The Thames Valley, Thames Valley Buses and Reading Buses.
The distance between Heathrow Terminal 3 and Windsor Castle is 10.4 km. The road distance is 18 km.
You can take a vehicle from Heathrow Terminal 3 to Windsor Castle via Heathrow Central Bus Station, Wellington Street Stop H, and Windsor Castle in around 1h 3m.