American Airlines:
If you are making reservations via the web at www.aa.com, choose "More Flight Search Options" and insert the promotion code 52H2BK in the appropriate box. At this time there is no ticketing fee for reservations made and ticketed on www.aa.com.
If you are making reservations by phone at 1-800-433-1790 from anywhere in the United States or Canada, there will be a separate ticketing charge of $25 USD. For tickets purchased at the airport there is a charge of $30 USD.