The average train between Royal Observatory and Windsor Castle takes 1h 28m and the fastest train takes 1h 11m. The train runs at least 2 times per hour 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.
Trains run every 30 minutes between Royal Observatory and Windsor Castle. The earliest departure is at 5:35 AM in the morning, and the last departure from Royal Observatory is at 11:10 PM which arrives into Windsor Castle at 5:36 AM. All services require a transfer at Cutty Sark and take an average of 1h 28m. The schedules shown below are for the next available departures.


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1h 31m • 2 changesWant 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 train from Royal Observatory to Windsor Castle. However, there are services departing from Canary Wharf station and arriving at Slough station via Slough station. The journey, including transfers, takes approximately 1h 28m.
Royal Observatory to Windsor Castle train services, operated by Elizabeth Line (TfL), depart from Canary Wharf station.
Royal Observatory to Windsor Castle train services, operated by Elizabeth Line (TfL), arrive at Slough station.
The distance between Royal Observatory and Windsor Castle is 41.8 km. The road distance is 48 km.
Elizabeth Line (TfL) operates a train from Canary Wharf to Slough every 20 minutes. Tickets cost £19–40 and the journey takes 49 min.