The number of US-bound flights from the airport will increase from 22 to 34 with all flights operated on board the Boeing 787 Dreamliner aircraft.
The additional services will see Norwegian’s daily service to New York double from August 10. The additional flight will hopefully appeal to business workers thanks to its 9am arrival in New York.
Meanwhile, a daily service is being introduced to Los Angeles from April while Oakland-San Francisco will be served on a five-times-a-week basis, up from three, from the same month.
Furthermore, April will also see the introduction of three-weekly flights to Orlando while the number of flights to at the same time as Fort Lauderdale sees a doubling from once a week too.
Norwegian chief commercial 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.”
Stewart Wingate, chief executive at Gatwick Airport, 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."