The average bus between Calais and Slough takes 6h 4m and the fastest bus takes 5h 15m. The bus service runs several times per day from Calais 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 5 times a day between Calais and Slough. The earliest departure is at 2:30 AM at night, and the last departure from Calais is at 6:20 PM which arrives into Slough at 10:35 PM. All services require a transfer at London Victoria and take an average of 6h 4m. The schedules shown below are for the next available departures.

5h 22m • 1 change

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4h 45m • 1 change

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5h 18m • 1 change

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5h 35m • 1 change

5h 18m • 1 change
Want to know about travelling from Calais 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 Calais to Slough. However, there are services departing from Calais station and arriving at Slough station via London Victoria. The journey, including transfers, takes approximately 6h 4m.
Calais to Slough bus services, operated by FlixBus, depart from Calais station.
Calais to Slough bus services, operated by FlixBus, arrive at Wellington Street Stop H station.
Book your Calais to Slough bus tickets online with FlixBus and Reading Buses.
The distance between Calais and Slough is 181.6 km. The road distance is 206 km.
You can take a bus from Calais to Wellington Street Stop H via London Victoria and Green Line Coach Station in around 5h 40m.