The average bus between Slough and Royal Observatory takes 10h 59m and the fastest bus takes 10h 20m. The bus service runs several times per day from Slough to Royal Observatory. 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 twice daily between Slough and Royal Observatory. The earliest departure is at 7:35 PM in the evening, and the last departure from Slough is at 9:32 PM which arrives into Royal Observatory at 7:58 AM. All services require a transfer at Heathrow Central Bus Station and take an average of 10h 59m. The schedules shown below are for the next available departures.
Arrives next day


11h 14m • 2 changes
Arrives next day


10h 26m • 2 changes
Arrives next day


11h 14m • 2 changes
Arrives next day


10h 26m • 2 changes
Want to know about travelling from Slough to Royal Observatory? 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 Slough to Royal Observatory. However, there are services departing from Slough station and arriving at Royal Observatory station via Edinburgh, Bus Station station. The journey, including transfers, takes approximately 10h 59m.
Slough to Royal Observatory bus services, operated by First Berkshire & The Thames Valley, depart from Heathrow Central Bus Station.
Slough to Royal Observatory bus services, operated by First Berkshire & The Thames Valley, arrive at Edinburgh, Bus Station.
The distance between Slough and Royal Observatory is 519.5 km. The road distance is 666 km.
FlixBus operates a bus from Heathrow Central Bus Station to Edinburgh, Bus Station hourly. Tickets cost £40–70 and the journey takes 9h 55m. National Express also services this route twice daily.