The average bus between Radlett and Cardiff takes 5h 47m and the fastest bus takes 4h 56m. There is a bus service every few hours 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 hourly 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 12:35 AM. All services require a transfer at High Street and take an average of 5h 47m. The schedules shown below are for the next available departures.



6h 13m • 3 changes


6h 3m • 3 changes


5h 58m • 3 changes


5h 58m • 3 changes


5h 54m • 3 changes


6h 12m • 3 changes


6h 4m • 3 changes


5h 49m • 3 changes


5h 54m • 3 changes


6h 12m • 3 changes


6h 4m • 3 changes


5h 49m • 3 changes


5h 54m • 3 changes


6h 12m • 3 changes


6h 4m • 3 changes


5h 49m • 3 changes


5h 54m • 3 changes


6h 12m • 3 changes


6h 4m • 3 changes


5h 49m • 3 changes


5h 54m • 3 changes


6h 12m • 3 changes


6h 19m • 3 changes


6h 9m • 3 changesWant 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 Heathrow Central Bus Station and arriving at Sophia Gardens station via Sophia Gardens station. The journey, including transfers, takes approximately 5h 47m.
Radlett to Cardiff bus services, operated by National Express, depart from Heathrow Central Bus Station.
Radlett to Cardiff bus services, operated by National Express, arrive at Sophia Gardens station.
Book your Radlett to Cardiff bus tickets online with Omio.
The distance between Radlett and Cardiff is 199.1 km. The road distance is 238 km.
National Express operates a bus from Heathrow Central Bus Station to Sophia Gardens hourly. Tickets cost £22–40 and the journey takes 3h.