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For the fastest route from London Kings Cross to Heathrow Airport, simply take the London Underground directly to London Paddington and catch the Heathrow Express non-stop to the airport.
Both the Hammersmith and City Line and the Circle Line provide direct services between Kings Cross and Paddington, while the Heathrow Express is the quickest way to get to Heathrow Airport non-stop.
For more information about travelling from London Paddington to London Heathrow on Heathrow Express, visit our information page.
Journey times between Kings Cross and London Heathrow will take between 45 minutes and one hour.
When choosing to take the Heathrow Express from London Paddington to Heathrow, your journey time will be 45 minutes. Heathrow Express trains take just 15 minutes to reach Heathrow Central and an additional six minutes into Heathrow Terminal 5 station.
The cost of getting from Kings Cross to Heathrow, or Heathrow to Kings Cross, will depend on how far in advance you purchase your tickets for Heathrow Express.
By booking at least 90 days in advance you can enjoy savings of up to 75%, with an Advanced Purchase Single costing just £5.50. Heathrow Express tickets for an Anytime Day Single is £25. If you’re travelling to the airport as a family, there are cost savings to be made on two adult tickets with a Duo Saver, while kids aged 15 and under will travel for free
Quick connections and a comfortable travel experience are central to the Heathrow Express experience. In addition to enjoying the fastest non-stop service between Paddington and London Heathrow, passengers on board Heathrow Express can also enjoy:
For those that opt for our Express Class service, they will also enjoy Premium Seating with plenty of legroom for a comfortable journey to the airport. Passengers opting for our Business First Class service can make the most of a larger seating area and a personal table to catch up on some work before their flight, or simply to relax with a complimentary newspaper or magazine.
*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.