In the spring, the start-up will operate to Fort Lauderdale, New York Stewart and Los Angeles Ontario airports from its Olso base.
It also plans to base several of its former Norwegian Air Boeing 787 Dreamliner aircraft at Gatwick, although it is not yet clear if Norse will serve the same destinations.
Norwegian previously flew Gatwick-New York JFK. Earlier this month, Norse inked a deal with UK pilots union Balpa, with the union confident the launch would create "hundreds" of jobs at Gatwick.