The average train between Gloucester and Slough takes 1h 44m and the fastest train takes 1h 31m. There is a train service every few hours from Gloucester 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 hourly between Gloucester and Slough. The earliest departure is at 6:10 AM in the morning, and the last departure from Gloucester is at 9:19 PM which arrives into Slough at 10:58 PM. All services require a transfer, and take on average 1h 44m. The schedules shown below are for the next available departures.

1h 41m • 1 change

1h 41m • 1 change

1h 39m • 1 change

1h 39m • 1 change

1h 56m • 1 change

2h 2m • 1 change

1h 46m • 1 change

1h 38m • 1 change

1h 56m • 1 change

2h 2m • 1 change

1h 46m • 1 change

1h 38m • 1 change

1h 56m • 1 change

2h 2m • 1 change

1h 46m • 1 change

1h 38m • 1 change
Want to know about travelling from Gloucester 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 Gloucester to Slough. However, there are services departing from Gloucester station and arriving at Slough station via Reading. The journey, including transfers, takes approximately 1h 44m.
Gloucester to Slough train services, operated by Great Western Railway (GWR), depart from Gloucester station.
Gloucester to Slough train services, operated by Great Western Railway (GWR), arrive at Slough station.
Book your Gloucester to Slough train tickets online with Great Western Railway (GWR) and Elizabeth Line (TfL).
The distance between Gloucester and Slough is 120.3 km. The road distance is 153 km.
You can take a train from Gloucester to Slough via Reading in around 1h 42m.