The average bus between Greenford and Slough takes 1h 39m and the fastest bus takes 1h 6m. The bus runs at least 3 times per hour from Greenford 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 20 minutes between Greenford and Slough. The earliest departure is at 4:42 AM at night, and the last departure from Greenford is at 6:35 PM which arrives into Slough at 8:28 PM. All services require a transfer, and take on average 1h 39m. The schedules shown below are for the next available departures.

1h 16m • 1 change

1h 15m • 1 change

1h 25m • 1 change

1h 37m • 1 change
Want to know about travelling from Greenford 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 Greenford to Slough. However, there are services departing from Greenford station and arriving at Slough station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 1h 39m.
Greenford to Slough bus services, operated by First Bus London, depart from Oldfield Lane South station.
Greenford to Slough bus services, operated by First Bus London, arrive at Wellington Street stop E station.
The distance between Greenford and Slough is 16.8 km. The road distance is 26 km.
You can take a bus from Oldfield Lane South to Wellington Street stop E via Heathrow Central Bus Station in around 1h 32m.