The average bus between Watford and Hounslow takes 1h 47m and the fastest bus takes 1h 8m. The bus runs at least 2 times per hour from Watford to Hounslow. 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 Watford and Hounslow. The earliest departure is at 4:10 AM at night, and the last departure from Watford is at 11:01 PM which arrives into Hounslow at 12:15 AM. All services require a transfer at Heathrow Terminal 2 and take an average of 1h 47m. The schedules shown below are for the next available departures.

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2h 1m • 1 changeWant to know about travelling from Watford to Hounslow? 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 Hounslow. However, there are services departing from Town Hall station and arriving at Heathrow Terminal 2 station via Heathrow Terminal 2 station. The journey, including transfers, takes approximately 1h 47m.
Watford to Hounslow bus services, operated by First Berkshire & The Thames Valley, depart from Town Hall station.
Watford to Hounslow bus services, operated by First Berkshire & The Thames Valley, arrive at Heathrow Terminal 2 station.
The distance between Watford and Hounslow is 20.9 km. The road distance is 28 km.
First Berkshire & The Thames Valley operates a bus from Town Hall to Heathrow Terminal 2 every 15 minutes. Tickets cost £3–4 and the journey takes 42 min. Arriva UK also services this route every 30 minutes.