20K starpoints = 30K AA
The American Airlines AAdvantage® and Starwood Preferred Guest® programs are excited to offer you this exclusive opportunity to earn more miles toward your next trip.
From July 1 through July 31, 2014, simply convert your Starpoints® to American Airlines AAdvantage miles and earn a 20% bonus. As always, for every 20,000 Starpoints transferred within the same transaction, SPG® will automatically add another 5,000 miles. With the additional 20% mileage bonus offered by the AAdvantage program, you will receive a total of 30,000 miles from the transaction.
20,000 Starpoints = 20,000 AAdvantage miles
Standard SPG bonus = 5,000 AAdvantage miles
AAdvantage 20% mileage bonus = 5,000 AAdvantage miles
Total = 30,000 AAdvantage miles
Converting your Starpoints into AAdvantage miles will bring you closer to reaching your dream destination.
http://www.aa.com/viewPromotionDetails.do?fN=aad-starwood-offer.xml&_locale=en_US