The average bus between Watford and Kempston takes 3h 40m and the fastest bus takes 2h 52m. There is a bus service every few hours from Watford to Kempston. 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 Watford and Kempston. The earliest departure is at 4:35 AM at night, and the last departure from Watford is at 10:35 PM which arrives into Kempston at 6:44 AM. All services require a transfer at Luton Station Interchange and take an average of 3h 40m. The schedules shown below are for the next available departures.



3h 19m • 3 changes



3h 25m • 3 changes



3h 11m • 3 changes



3h 7m • 3 changes



3h 19m • 3 changes



3h 25m • 3 changes



3h 11m • 3 changes



3h 7m • 3 changes



3h 14m • 3 changes



3h 19m • 3 changes



4h 9m • 3 changes



3h 10m • 3 changes



3h 32m • 3 changes



4h 12m • 3 changes



4h 9m • 3 changes



4h 1m • 3 changes
Want to know about travelling from Watford to Kempston? 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 Watford to Kempston. However, there are services departing from Watford station and arriving at Kempston station via Luton Station Interchange station. The journey, including transfers, takes approximately 3h 40m.
Watford to Kempston bus services, operated by Arriva UK, depart from Market Street station.
Watford to Kempston bus services, operated by Arriva UK, arrive at Luton Station Interchange.
The distance between Watford and Kempston is 51.7 km. The road distance is 71 km.
Arriva UK operates a bus from Market Street to Luton Station Interchange every 15 minutes. Tickets cost £1–3 and the journey takes 1h 37m.