This is one of the best ways especially for Australian Amex MR card holders to get miles in American AAdvantage.  Most Aussies can’t get the more lucrative AA & US credit cards so have to resort to the Amex MR transfers to SPG, then on to the US based program.

And now US Airways has jumped on the bandwagon so you have 2 choices.

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In a nutshell:

20,000 Starpoints = 20,000 AAdvantage/Dividend miles
Standard SPG bonus = 5,000 AAdvantage/Dividend miles
AAdvantage 20% mileage bonus = 5,000 AAdvantage/Dividend miles
Total = 30,000 AAdvantage/Dividend miles

Since 2 Amex = 1 SPG, 40,000 Aussie Amex MR = 20,000 SPG = 30,000 AAdvantage/Dividend.

Remember that these two programs are set to merge in 2015 and devaluations are expected so don’t convert unless you plan to redeem before then.  Otherwise it is best to keep you SPG miles in the flexible SPG program so you maintain a better choice of airlines

AAdvantage Full details and T&C’s

US Airways Full details and T&C’s