Praise be to the gods of aeronautics: Uber—which kills it with cars and dabbles in jets—has turned its attention to a more affordable airborne conveyance, the helicopter. Recent test flights in New York and Los Angeles had city dwellers shuttling to party zones such as Malibu and the Hamptons at discounted fares (around $500 a person). While Uber has pop-up seasonal collaborations, one of its partners, Blade, operates year-round in New York City.