The average bus between Royal Observatory and Windsor Castle takes 2h 50m and the fastest bus takes 2h 21m. There is a bus service every few hours from Royal Observatory 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 hourly between Royal Observatory and Windsor Castle. The earliest departure is at 5:46 AM in the morning, and the last departure from Royal Observatory is at 10:25 PM which arrives into Windsor Castle at 12:48 AM. All services require a transfer at Greenwich High Road / Royal Hill and take an average of 2h 50m. The schedules shown below are for the next available departures.


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Want to know about travelling from Royal Observatory 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 Royal Observatory to Windsor Castle. However, there are services departing from Royal Observatory station and arriving at Windsor Castle station via Victoria Station station. The journey, including transfers, takes approximately 2h 50m.
Royal Observatory to Windsor Castle bus services, operated by Stagecoach London, depart from New Cross Bus Garage station.
Royal Observatory to Windsor Castle bus services, operated by Stagecoach London, arrive at Windsor Castle station.
The distance between Royal Observatory and Windsor Castle is 41.8 km. The road distance is 52 km.
You can take a vehicle from Royal Observatory to Windsor Castle via Greenwich High Road / Royal Hill, New Cross Bus Garage, Victoria Station, and Windsor Castle in around 3h 29m.