The average bus between Gloucester and Slough takes 3h 32m and the fastest bus takes 3h 5m. The bus service runs several times per day 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.
Buses run every 3 hours between Gloucester and Slough. The earliest departure is at 2:20 AM at night, and the last departure from Gloucester is at 3:50 PM which arrives into Slough at 7:45 PM. All services require a transfer, and take on average 3h 32m. The schedules shown below are for the next available departures.

3h 6m • 1 change

3h 17m • 1 change

3h 40m • 1 change

3h 32m • 1 change

3h 6m • 1 change

3h 17m • 1 change

3h 46m • 1 change

3h 21m • 1 change

3h 5m • 1 change

3h 8m • 1 change

3h 29m • 1 change

3h 24m • 1 change

3h 5m • 1 change

3h 17m • 1 change

3h 29m • 1 change

3h 22m • 1 change

3h 5m • 1 change

3h 16m • 1 change

3h 44m • 1 change

3h 21m • 1 change

3h 6m • 1 change

3h 17m • 1 change

3h 40m • 1 change

3h 32m • 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 bus from Gloucester to Slough. However, there are services departing from Gloucester station and arriving at Slough station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 3h 32m.
Gloucester to Slough bus services, operated by National Express, depart from Transport Hub station.
Gloucester to Slough bus services, operated by National Express, arrive at Heathrow Central Bus Station.
Book your Gloucester to Slough bus tickets online with National Express and First Berkshire & The Thames Valley.
The distance between Gloucester and Slough is 120.3 km. The road distance is 179 km.
National Express operates a bus from Transport Hub to Heathrow Central Bus Station hourly. Tickets cost £19–50 and the journey takes 2h 55m.