The average bus between Hounslow and Cardiff takes 4h 9m and the fastest bus takes 3h 29m. There is a bus service every few hours from Hounslow to Cardiff. 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 Hounslow and Cardiff. The earliest departure is at 6:27 AM in the morning, and the last departure from Hounslow is at 11:57 PM which arrives into Cardiff at 4:00 AM. All services require a transfer, and take on average 4h 9m. The schedules shown below are for the next available departures.

4h 32m • 1 change

4h 23m • 1 change

3h 37m • 1 change

4h 25m • 1 change

4h 3m • 1 change

4h 15m • 1 change

3h 29m • 1 change

4h 15m • 1 change

4h 7m • 1 change

4h 19m • 1 change

3h 36m • 1 change

4h 22m • 1 change

4h 7m • 1 change

4h 19m • 1 change

3h 36m • 1 change

4h 22m • 1 change
Want to know about travelling from Hounslow to Cardiff? 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 Hounslow to Cardiff. However, there are services departing from Hounslow station and arriving at Cardiff station via Sophia Gardens. The journey, including transfers, takes approximately 4h 9m.
Hounslow to Cardiff bus services, operated by Abellio London, depart from Heathrow Central Bus Station.
Hounslow to Cardiff bus services, operated by Abellio London, arrive at Sophia Gardens station.
The distance between Hounslow and Cardiff is 195.2 km. The road distance is 232 km.
National Express operates a bus from Heathrow Central Bus Station to Sophia Gardens hourly. Tickets cost £26–65 and the journey takes 2h 55m.