The average bus between Cambridge and Harefield takes 3h 34m and the fastest bus takes 3h 14m. The bus service runs several times per day from Cambridge to Harefield. 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 4 hours between Cambridge and Harefield. The earliest departure is at 2:25 AM at night, and the last departure from Cambridge is at 5:05 PM which arrives into Harefield at 8:21 PM. All services require a transfer at London Heathrow Airport and take an average of 3h 34m. The schedules shown below are for the next available departures.


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3h 43m • 2 changesWant to know about travelling from Cambridge to Harefield? 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 Cambridge to Harefield. However, there are services departing from Cambridge Parkside - Stop 18 station and arriving at London Heathrow Airport station via London Heathrow Airport station. The journey, including transfers, takes approximately 3h 34m.
Cambridge to Harefield bus services, operated by FlixBus, depart from Cambridge Parkside - Stop 18 station.
Cambridge to Harefield bus services, operated by FlixBus, arrive at London Heathrow Airport station.
The distance between Cambridge and Harefield is 78 km. The road distance is 94 km.
FlixBus operates a bus from Cambridge Parkside - Stop 18 to London Heathrow Airport every 4 hours. Tickets cost £8–13 and the journey takes 2h 10m.