American Airlines' frequent flyer program. The program was designed to encourage loyalty to flying AA. Over the years, many other sources of earning miles have been added through alliances and "partners". AAdvantage was the first FF program in existence.

AAdvantage is the frequent flyer program of American Airlines (AA). It is pronounced "advantage" (i.e., the first letter is silent). Launched May 1, 1981, it was the first such loyalty program in the world, and remains the largest with more than 50 million members as of 2005.