“Through Dec. 31, AAdvantage members will earn double miles for purchases at the AAdvantage eShopping mall charged to a MasterCard.
MasterCard purchases with 25 featured merchants award even more bonus miles: 2,500 miles for $250 spent, 5,000 miles for $500 spent, or 10,000 miles for $1,000 spent. The featured merchants are Avon.com,, Barnes & Noble.com, [...]


