Primera Air will begin direct flights five times a week from London Stansted to Washington Dulles airport, with flights beginning on 22 August.
Primera Air will also increase flight frequency between Stansted and Toronto.
"We’ve been planning to add Washington from the beginning of the transatlantic flight project," said Andri Már Ingólfsson, president and owner of Primera Air.
However, the good news for Stansted is tempered by the airline cancelling its planned Birmingham to Boston route and reducing the frequency of its Birmingham to Newark flights.
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