The average bus between Uxbridge and Cardiff takes 4h 1m and the fastest bus takes 3h 20m. There is a bus service every few hours from Uxbridge 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 Uxbridge and Cardiff. The earliest departure is at 12:00 AM at night, and the last departure from Uxbridge is at 8:56 PM which arrives into Cardiff at 12:50 AM. All services require a transfer, and take on average 4h 1m. The schedules shown below are for the next available departures.

4h 18m • 1 change

3h 37m • 1 change

4h 5m • 1 change
Arrives next day

3h 54m • 1 change

4h • 1 change

4h 31m • 1 change

4h 13m • 1 change

3h 40m • 1 change

4h • 1 change

4h 31m • 1 change

4h 13m • 1 change

3h 40m • 1 change

4h • 1 change

4h 10m • 1 change

4h 2m • 1 change

3h 22m • 1 change
Want to know about travelling from Uxbridge 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 Uxbridge to Cardiff. However, there are services departing from Uxbridge station and arriving at Cardiff station via Sophia Gardens. The journey, including transfers, takes approximately 4h 1m.
Uxbridge to Cardiff bus services, operated by Carousel Buses, depart from Heathrow Central Bus Station.
Uxbridge to Cardiff bus services, operated by Carousel Buses, arrive at Sophia Gardens station.
The distance between Uxbridge and Cardiff is 186.8 km. The road distance is 232 km.
National Express operates a bus from Heathrow Central Bus Station to Sophia Gardens hourly. Tickets cost £25–65 and the journey takes 2h 55m.