The Key Routes section analyses punctuality on over 70 of the busiest routes by scheduled carriers from the five London Airports; Heathrow, Gatwick, Stansted, Luton and London City. More than half of all scheduled flights to and from London Airports (61% in 2011) operated on one of these routes, representing over half a million flights per year. Data is available for full years, and for the current year to date.

Select a Key Route to view the data:

The most popular routes by continent are listed below. Simply click on a route to see the punctuality breakdown by airline. You can also use fast-links by simply visiting, for example, flightontime.info/LondonNewYork to see the London to New York data.