Ryanair is to increase flights to London's Stansted airport by 50% over the next decade in a deal that would bring an additional 7 million passengers a year through the city's fourth largest airport.
The deal ends a stand-off with the airport's owners Manchester Airports Group over landing charges.
Earlier this year, the airline had threatened to cut its Stansted flights by 9%.
Ryanair said today that the deal will account for up to 25% of its five year growth plans up to 2019.
The airline also said today that it would add four new routes from Stansted for its summer 2014 schedule.
The new routes are to Bordeaux, Dortmund, Lisbon and Rabat and will see the airline's total routes from the airport reach 120.
''As Stansted's biggest airline, Ryanair looks forward to a decade of growing traffic, routes and jobs at Stansted,'' commented Ryanair's chief executive Michael O'Leary.