The changes will go into effect October 1.
American has emailed AAdvantage members with the changes.
For more information visit http://www.aa.com/aa/i18nForward.do?p=/urls/awardChanges.jsp.
Frequent fliers will have to earn more miles with American Airlines. The air carrier announced new changes to its program that includes new fees and higher mileage requirements for upgrades and free tickets. They effect both domestic and international flights and business and first-class tickets.