The average bus between Cardiff and Mill Hill takes 5h 6m and the fastest bus takes 4h 13m. There is a bus service every few hours from Cardiff to Mill Hill. 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 Mill Hill. The earliest departure is at 1:40 AM at night, and the last departure from Cardiff is at 11:45 PM which arrives into Mill Hill at 5:33 AM. All services require a transfer at Heathrow Central Bus Station and take an average of 5h 6m. The schedules shown below are for the next available departures.


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4h 58m • 2 changesWant to know about travelling from Cardiff to Mill Hill? 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 Mill Hill. However, there are services departing from Sophia Gardens station and arriving at Harrow Bus Station via Heathrow Central Bus Station. The journey, including transfers, takes approximately 5h 6m.
Cardiff to Mill Hill bus services, operated by National Express, depart from Sophia Gardens station.
Cardiff to Mill Hill bus services, operated by First Bus London, arrive at Harrow Bus Station.
The distance between Cardiff and Mill Hill is 203.3 km. The road distance is 236 km.
You can take a bus from Sophia Gardens to Mill Hill Broadway via Heathrow Central Bus Station and Harrow Bus Station in around 4h 46m.