Ultra low cost airline carrier Norwegian Air is launching service between Seattle-Tacoma International Airport and London’s Gatwick Airport this fall.

It’s the second time in as many weeks that a foreign airline has announced or launched new service between Seattle and London.

Virgin Atlantic launched daily Seattle to London Heathrow service last week.

Norwegian’s new service from Seattle to London will begin on Sept. 17, with four flights a week on Mondays, Wednesday, Fridays and Sundays. Special…