The average train between Harlow and Slough takes 1h 24m and the fastest train takes 1h 16m. The train runs at least 3 times per hour from Harlow 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 Harlow and Slough. The earliest departure is at 12:47 AM at night, and the last departure from Harlow is at 5:28 PM which arrives into Slough at 6:49 PM. All services require a transfer at London Liverpool Street and take an average of 1h 24m. The schedules shown below are for the next available departures.

5h 59m • 1 change

1h 29m • 1 change

1h 27m • 1 change

1h 18m • 1 change
Want to know about travelling from Harlow 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 Harlow to Slough. However, there are services departing from Harlow station and arriving at Slough station via London Liverpool Street. The journey, including transfers, takes approximately 1h 24m.
Harlow to Slough train services, operated by Stansted Express, depart from Harlow Town station.
Harlow to Slough train services, operated by Stansted Express, arrive at Slough station.
Book your Harlow to Slough train tickets online with Stansted Express, Elizabeth Line (TfL) and Greater Anglia.
The distance between Harlow and Slough is 57.1 km. The road distance is 73 km.
You can take a train from Harlow Town to Slough via London Liverpool Street and Liverpool Street Station in around 1h 28m.