A frequent-flyer programme (FFP) is a loyalty program offered by an airline.

A loyalty program is a marketing strategy designed to encourage customers to continue to shop at or use the services of a business associated with the program. A loyalty program typically involves the operator of a particular program set up an account for a customer of a business associated with the scheme, and then issue to the customer a loyalty card which may be a plastic or paper card, visually similar to a credit card, that identifies the cardholder as a participant in the program. Cards may have a barcode or magstripe to more easily allow for scanning, although some are chip cards or proximity cards.