Norwegian Air and New York’s JetBlue Airways have agreed to form a partnership that will allow customers to book flights on each others’ aircraft, with a planned startup in mid-2020, lifting Norwegian Air’s shares. Norwegian Air has shaken up the market for transatlantic travel with cut-price fares that challenge traditional carriers such as IAG’s British Airways, but has so far lacked a domestic U.S. partner. “Customers will have the possibility to book connecting flights on both airlines’ websites by combining the best of our complementary and expansive networks,” they added. […]