A jet card is a prepaid membership program that allows individuals to book private jet flights without the need for ownership. Customers purchase a set number of flight hours in advance, which can be used on various aircraft types. This offers flexibility and convenience for those who travel frequently. With a jet card, users can enjoy benefits like guaranteed availability, access to a wide range of jets, and often additional services such as catering and ground transportation. This option is popular among business executives and affluent travelers who value time and comfort while flying.