"Because we value your participation in the AAdvantage program, we want to let you know about an upcoming program change. AAdvantage members now must have mileage earning or redemption activity once every 18 months in order to remain active and retain their miles. Effective December 15, 2007, mileage balances will expire from AAdvantage accounts that have not had miles either earned or redeemed within the previous eighteen (18) month period. This change will not impact you as long as you remain active in the AAdvantage program.

You can verify your last activity date by logging in to AA.com with your AAdvantage number and password. Click on "View All" in the "View My Miles" section. Just above the Mileage Summary, your last activity date is noted.

The chart below outlines how the last activity date determines the mileage expiration date:

Last Activity Date Mileage Expiration Date
January 1, 2000 - May 31, 2004 Expired
June 1, 2004 - June 15, 2006 Expiring December 15, 2007*
June 16, 2006 and Beyond Expiring 18 Months Later*

*Under new 18-month Mileage Retention policy " (aa email)

Labels: AAdvantage, American Airlines AAdvantage® miles