The average bus between Cardiff and Uxbridge takes 3h 46m and the fastest bus takes 3h 8m. There is a bus service every few hours from Cardiff to Uxbridge. 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 Cardiff and Uxbridge. The earliest departure is at 1:40 AM at night, and the last departure from Cardiff is at 11:40 PM which arrives into Uxbridge at 4:13 AM. All services require a transfer, and take on average 3h 46m. The schedules shown below are for the next available departures.

3h 31m • 1 change

3h 58m • 1 change

3h 18m • 1 change

4h 3m • 1 change

3h 31m • 1 change

3h 58m • 1 change

3h 18m • 1 change

4h 3m • 1 change

3h 31m • 1 change

3h 58m • 1 change

3h 18m • 1 change

4h 3m • 1 change
Want to know about travelling from Cardiff to Uxbridge? 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 Cardiff to Uxbridge. However, there are services departing from Cardiff station and arriving at Uxbridge station via Heathrow Central Bus Station station. The journey, including transfers, takes approximately 3h 46m.
Cardiff to Uxbridge bus services, operated by National Express, depart from Sophia Gardens station.
Cardiff to Uxbridge bus services, operated by National Express, arrive at Heathrow Central Bus Station.
The distance between Cardiff and Uxbridge is 186.8 km. The road distance is 230 km.
National Express operates a bus from Sophia Gardens to Heathrow Central Bus Station hourly. Tickets cost £25–65 and the journey takes 2h 50m.