The average bus between Slough and Cardiff Central Station takes 4h 40m and the fastest bus takes 3h 48m. There is a bus service every few hours from Slough to Cardiff Central Station. 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 hourly between Slough and Cardiff Central Station. The earliest departure is at 12:02 AM at night, and the last departure from Slough is at 11:32 PM which arrives into Cardiff Central Station at 6:35 AM. All services require a transfer at Heathrow Central Bus Station and take an average of 4h 40m. The schedules shown below are for the next available departures.


4h 36m • 2 changes

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4h 6m • 2 changes

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4h 32m • 2 changes

4h 6m • 2 changes

4h 56m • 2 changes

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3h 58m • 2 changes

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9h 8m • 2 changes

5h • 2 changes

4h 50m • 2 changes

4h 24m • 2 changesWant to know about travelling from Slough to Cardiff Central Station? 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 Slough to Cardiff Central Station. However, there are services departing from Slough station and arriving at Cardiff Central Station station via Sophia Gardens. The journey, including transfers, takes approximately 4h 40m.
Slough to Cardiff Central Station bus services, operated by First Berkshire & The Thames Valley, depart from Heathrow Central Bus Station.
Slough to Cardiff Central Station bus services, operated by First Berkshire & The Thames Valley, arrive at Sophia Gardens station.
The distance between Slough and Cardiff Central Station is 178.9 km. The road distance is 236 km.
National Express operates a bus from Heathrow Central Bus Station to Sophia Gardens hourly. Tickets cost £22–40 and the journey takes 2h 55m.