Norwegian is to expand its low-fare transatlantic network from Gatwick by 55% next summer.
The low-cost long-haul network will see the number of flights rise from 22 to 34 flights a week.
The airline will raise frequency to New York to a double daily service from August 10, with flights to Los Angeles increasing to a daily service from April.
Flights to Oakland-San Francisco will climb to five departures a week while Orlando will be served by three flights a week and Fort Lauderdale by two flights a week.
The airline’s chief commercail officer Thomas Ramdahl said: “Our US flights are more popular than ever and customer demand shows low-cost long-haul flights are here to stay.
“By expanding the number of transatlantic flights from Gatwick, we are giving tourists and business passengers more flexibility, attractive fares and convenient schedules.
“With nine more 787 Dreamliners entering our fleet next year, this will be just the beginning of our UK expansion.
“Norwegian will continue to grow the number of great value flights to the US and drive down fares to become the UK’s number one airline of choice.”
Gatwick chief executive Stewart Wingate added: “Norwegian’s low-cost long-haul services to the US just go from strength to strength because they keep giving passengers what they want – affordable prices, great service and frequent flights to top destinations.
“The new double daily service to New York with its 9am arrival time, and increased frequencies to LA and Oakland – San Francisco will suit Gatwick’s business passengers in particular.
“These new flights compliment Gatwick’s 50-plus strong long-haul route network and offer UK passengers yet more opportunities for both leisure and business.”