And there is no shortage of private jet packages offered by hotel companies seeking a piece of the pie: Four Seasons offers weeks-long journeys around the world on a customized 48-person jet run by tour operator TCS World Travel, and Fairmont Hotels and Resorts recently launched cocktail-themed destination-hopping packages with Canadian jet operator AirSprint. “Business jets are just time machines,” says Steve Gade, vice president of aircraft sales at Duncan Aviation, a business jet support company based in Lincoln, Neb.