A membership account identifier assigned by airways or airline alliances to people collaborating of their loyalty packages. It serves as a novel file key, monitoring amassed miles or factors earned by means of journey, purchases, or different qualifying actions. For example, a passenger enrolled with United Airways’ MileagePlus program will obtain a definite alphanumeric sequence which, when introduced throughout reserving or check-in, ensures correct crediting of flight exercise to their account.
This identifier is essential for accessing program advantages, which can embody precedence boarding, complimentary upgrades, entry to airport lounges, and award journey. The proliferation of those packages started within the early Nineteen Eighties, remodeling the journey business by incentivizing buyer loyalty and offering airways with helpful knowledge for advertising and operational optimization. The systematic seize of journey knowledge underpins personalised companies and focused promotions.
