United Airlines is offering the sweet bliss of solitude for a price, betting fliers are interested in a middle ground between business class and coach.United's Economy Plus seats on its new Airbus A321XLR aircraft.UnitedJuly 15, 2026, 1:00 PM EDTBy Daniel ArkinThe latest airline upgrade isn’t an in-flight bed, five-star meals or a craft cocktail. It’s the promise that the seat beside you stays empty.Just a moment.We are getting your experience ready.