The average train between Dunstable and Slough takes 1h 39m and the fastest train takes 1h 25m. The train runs at least 3 times per hour from Dunstable to Slough. 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 Dunstable and Slough. The earliest departure is at 5:04 AM in the morning, and the last departure from Dunstable is at 9:38 PM which arrives into Slough at 11:17 PM. All services require a transfer at Farringdon and take an average of 1h 39m. The schedules shown below are for the next available departures.

1h 43m • 1 change

1h 41m • 1 change

1h 40m • 1 change

1h 43m • 1 change
Want to know about travelling from Dunstable to Slough? 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 Dunstable to Slough. However, there are services departing from Dunstable station and arriving at Slough station via Farringdon. The journey, including transfers, takes approximately 1h 39m.
Dunstable to Slough train services, operated by Thameslink, depart from Leagrave station.
Dunstable to Slough train services, operated by Thameslink, arrive at Slough station.
Book your Dunstable to Slough train tickets online with Thameslink and Elizabeth Line (TfL).
The distance between Dunstable and Slough is 42.1 km. The road distance is 89 km.
You can take a train from Leagrave to Slough via Farringdon and Farringdon Without in around 1h 34m.