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, and take on average 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 Watford Junction station station. The journey, including transfers, takes approximately 2h 3m.
Harrow to Harpenden bus services, operated by First Bus London, depart from Harrow Town Cen/ Sheepcote Rd 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 39 km.
You can take a bus from Harrow Town Cen/ Sheepcote Rd to Old Cock Inn via Watford Junction station in around 1h 58m.