The average bus between Harrow and Harpenden takes 2h 3m and the fastest bus takes 1h 26m. The bus runs at least 2 times per hour from Harrow to Harpenden. 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 30 minutes between Harrow and Harpenden. The earliest departure is at 12:18 AM at night, and the last departure from Harrow is at 10:06 PM which arrives into Harpenden at 11:32 PM. All services require a transfer at Watford Junction and take an average of 2h 3m. The schedules shown below are for the next available departures.

5h 54m • 1 change

1h 33m • 1 change

1h 52m • 1 change

2h 1m • 1 change
Want to know about travelling from Harrow to Harpenden? 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 Harrow to Harpenden. However, there are services departing from Harrow station and arriving at Harpenden station via Old Cock Inn. The journey, including transfers, takes approximately 2h 3m.
Harrow to Harpenden bus services, operated by First Bus London, depart from Watford Junction station.
Harrow to Harpenden bus services, operated by First Bus London, arrive at Old Cock Inn station.
Book your Harrow to Harpenden bus tickets online with First Bus London and Arriva UK.
The distance between Harrow and Harpenden is 26.2 km. The road distance is 33 km.
Arriva UK operates a bus from Watford Junction station to Old Cock Inn every 15 minutes. Tickets cost £1–3 and the journey takes 1h 6m.