The average bus between Radlett and Cardiff takes 5h 48m and the fastest bus takes 5h. The bus service runs several times per day from Radlett 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 every 2 hours between Radlett and Cardiff. The earliest departure is at 6:01 AM in the morning, and the last departure from Radlett is at 7:39 PM which arrives into Cardiff at 12:50 AM. All services require a transfer at High Street and take an average of 5h 48m. The schedules shown below are for the next available departures.



5h 36m • 3 changes



5h 59m • 3 changes



5h 48m • 3 changes



5h 47m • 3 changes



6h 4m • 3 changes



5h 25m • 3 changes



6h 14m • 3 changes



5h 34m • 3 changes



6h 4m • 3 changes



5h 25m • 3 changes



6h 14m • 3 changes



5h 34m • 3 changes



6h 4m • 3 changes



5h 25m • 3 changes



6h 24m • 3 changes



5h 54m • 3 changes



5h • 3 changes



5h 50m • 3 changes



5h 35m • 3 changes



5h 46m • 3 changes
Want to know about travelling from Radlett 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 Radlett to Cardiff. However, there are services departing from Radlett station and arriving at Cardiff station via Sophia Gardens. The journey, including transfers, takes approximately 5h 48m.
Radlett to Cardiff bus services, operated by Uno, depart from Heathrow Central Bus Station.
Radlett to Cardiff bus services, operated by Uno, arrive at Sophia Gardens station.
The distance between Radlett and Cardiff is 199.1 km. The road distance is 271 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.