For the quickest, easiest and most efficient route from Watford to London Heathrow, make your way to London Paddington via the train and tube. Once at Paddington, hop on the Heathrow Express for direct train travel to Heathrow Airport. Our trains depart from either platform 6 or 7, but we sometimes use other platforms so check your journey planner and the boards at the station.
Trains leave Paddington every 15 minutes, giving you plenty of options to arrive at the airport well before your flight.
The journey from Watford to London Heathrow can take around one and a half hours. As there are no direct trains, the fastest option is to travel to London Paddington from Watford. Here you can jump on the Heathrow Express to Heathrow Airport.
Our direct trains run from Paddington into Heathrow Central and take just 15 minutes. From here you can walk to Terminal 2 or 3 and hop on a shuttle bus to Terminal 4. If you're flying from Terminal 5, simply stay on the train for another six minutes to Terminal 5 station.
There is no direct train from Watford to Heathrow. The quickest and most efficient route is to get the train to Queen’s Park and hop on the Bakerloo Line to Paddington Station. Once here you can catch the Heathrow Express non-stop to Heathrow Airport. Your journey from Paddington will take just 15 minutes and there are four Heathrow Express trains every hour.
If you book your Heathrow Express ticket early, you'll save money. An Advanced Purchase Single booked 90 days before you travel can be as much as 40% cheaper than a standard ticket.
If you’re flying last minute and book your ticket closer to your time of travel or on the day, an Anytime Single on Express Class is less than £30. The same ticket on Business First Class is just over £30. If you're meeting someone at the airport and travelling to London Heathrow and back in a day, a Day Return on Express Class is under £40. Kids aged 15 and under also travel free on Heathrow Express, with an adult holding a valid ticket.
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*Journey times based on route between London Paddington and Heathrow Terminal 3. Data sources: Google Maps for journey time by Taxi, TfL Journey Planner for journey time by Tube Tfl Rail and Heathrow Express. For Tube and Tfl Rail, the journey time represents an average, based on estimated best journey times shown on TfL Journey Planner on the hour every hour from 5am to 10pm for each day of August 2019. For Taxi, the journey time represents an average, based on an estimated range of journey times shown on Google Maps on the hour every hour from 5am to 10pm for each day of August 2019.