The average train between Heathrow Terminal 5 and Watford takes 1h 20m and the fastest train takes 1h 14m. The train runs at least 3 times per hour from Heathrow Terminal 5 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.
Trains run every 20 minutes between Heathrow Terminal 5 and Watford. The earliest departure is at 12:07 AM at night, and the last departure from Heathrow Terminal 5 is at 5:57 PM which arrives into Watford at 7:11 PM. All services require a transfer at London Paddington and take an average of 1h 20m. The schedules shown below are for the next available departures.


6h 14m • 2 changes


1h 16m • 2 changes


1h 29m • 2 changes


1h 16m • 2 changes
Want to know about travelling from Heathrow Terminal 5 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 train from Heathrow Terminal 5 to Watford. However, there are services departing from Heathrow Terminal 5 station and arriving at Watford station via London Paddington. The journey, including transfers, takes approximately 1h 20m.
Heathrow Terminal 5 to Watford train services, operated by Elizabeth Line (TfL), depart from Heathrow Terminal 5 station.
Heathrow Terminal 5 to Watford train services, operated by Elizabeth Line (TfL), arrive at Watford High Street station.
Book your Heathrow Terminal 5 to Watford train tickets online with Elizabeth Line (TfL), London Underground (Tube) and 2 other operators.
The distance between Heathrow Terminal 5 and Watford is 21.6 km. The road distance is 50 km.
You can take a vehicle from Heathrow Terminal 5 to Watford High Street via Heathrow Terminal 5, London Paddington, Paddington station, Queen's Park station, and Queens Park (London) in around 1h 20m.