The average bus between Greater London (Region) and Watford takes 1h 28m and the fastest bus takes 1h 6m. The bus runs at least 2 times per hour from Greater London (Region) to Watford. 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 Greater London (Region) and Watford. The earliest departure is at 1:32 AM at night, and the last departure from Greater London (Region) is at 11:32 PM which arrives into Watford at 12:43 AM. All services require a transfer, and take on average 1h 28m. The schedules shown below are for the next available departures.

1h 39m • 1 change

1h 35m • 1 change

1h 47m • 1 change

1h 29m • 1 change

1h 11m • 1 change

1h 11m • 1 change

1h 11m • 1 change

1h 18m • 1 change

1h 11m • 1 change

1h 11m • 1 change

1h 26m • 1 change

1h 57m • 1 change
Want to know about travelling from Greater London (Region) to Watford? 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 Greater London (Region) to Watford. However, there are services departing from Greater London (Region) station and arriving at Watford station via Black Boy PH. The journey, including transfers, takes approximately 1h 28m.
Greater London (Region) to Watford bus services, operated by Green Line, depart from Marble Arch station.
Greater London (Region) to Watford bus services, operated by Green Line, arrive at Watford Junction station.
The distance between Greater London (Region) and Watford is 23.4 km. The road distance is 39 km.
You can take a bus from Marble Arch to Watford Junction station via Black Boy PH in around 1h 26m.