American Airlines frequent flyer information and links. Details on American Airlines' American AAdvantage program. AAdvantage now has over 45 million members making it the largest loyalty program in the world. Become an American Airlines frequent flyer today!

These guys were the original mileage-based frequent flyer program. Established on May 1, 1981, AAdvantage now boasts 45 million members -- making it the largest loyalty program of any kind on the planet.

In people years, 22 years is not exactly an eternity. But in airline years (factoring in life expectancy, bankruptcy potential, fluctuations in travel levels, and a healthy dose of chaos theory), experts estimate that AAdvantage is roughly 4,352 years old.

Full review on the American Airlines frequent flyer program by WebFlyer

Aswell as earning AAdvantage miles through flights with American Airlines, you can also earn AAdvantage miles when you travel on qualifying flights with all eight oneworld airlines.

The base miles you earn with oneworld airlines count toward your qualification for AAdvantage Executive Platinum®, AAdvantage Platinum® and AAdvantage Gold® status.

Simply provide your AAdvantage frequent flyer number when making reservations with any qualifying oneworld airline.

A qualifying flight is defined as a flight that is both marketed and operated by a oneworld airline, with a oneworld airline flight number on the ticket.