Specifically:
To redeem your $100 flight discount, use the promotion code below, book and purchase a qualifying
American Airlines, American Eagle or AmericanConnection fare of $250 or more on AA.com between now and 9/5/2011. Travel must be between 9/6/2011 and 2/16/20122. Remember, use your Citi / AAdvantage credit card to earn as many AAdvantage miles as you can.
1In order to be eligible for this promotion, you must be the primary Citi / AAdvantage credit cardmember and have an open Citi / AAdvantage credit card on or before 8/10/2011. The AAdvantage number and email address you register must belong to the primary credit cardmember. See "Terms and Conditions" below for full details regarding this promotion.
2Excludes traval on 11/18/11 - 11/23/11, 11/26/11 - 11/28/11, 12/16/11 - 12/23/11, 12/26/11 - 12/31/11 and 1/1/12 - 1/4/12