The average train between Slough and Windsor Castle takes 37 min and the fastest train takes 23 min. The train runs at least 3 times per hour from Slough 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 20 minutes between Slough and Windsor Castle. The earliest departure is at 12:09 AM at night, and the last departure from Slough is at 11:39 PM which arrives into Windsor Castle at 12:20 AM. All services require a transfer at London Paddington and take an average of 37 min. The schedules shown below are for the next available departures.
Arrives next day

49 min • 1 change
Arrives next day

40 min • 1 change

27 min • 1 change

57 min • 1 change

42 min • 1 change

35 min • 1 change
Want to know about travelling from Slough 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 Slough to Windsor Castle. However, there are services departing from Slough station and arriving at Windsor Castle station via London Paddington. The journey, including transfers, takes approximately 37 min.
Slough to Windsor Castle train services, operated by Elizabeth Line (TfL), depart from Slough station.
Slough to Windsor Castle train services, operated by Elizabeth Line (TfL), arrive at London Paddington station.
The distance between Slough and Windsor Castle is 27.5 km. The road distance is 32 km.
Great Western Railway (GWR) operates a train from Slough to London Paddington every 30 minutes. Tickets cost £8–16 and the journey takes 18 min. Elizabeth Line (TfL) also services this route every 30 minutes.