Norwegian is running direct, low-cost routes on a new Dreamliner plane between Gatwick, New York, Los Angeles and Fort Lauderdale. As with other budget flights, seat reservations, checked-in luggage and food will cost extra. The carrier suggests the flights will help spark competition between airlines—Ryanair and easyJet have both previously talked about going transatlantic—and perhaps even start a price war, but the launch has not been without hitch. Norwegian encountered fierce opposition in America over the proposition, with several US airlines, unions and the Airline Pilots Organization (ALPA) teaming up to run a media campaign over the last few months,...