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Frontier Airlines is offering 10% off all reservations made between August 16 through August 30, 2011 for travel August 23 through March 18, 2012. All travel purchases must be made online at FrontierAirlines.com and must use an American Express Card for payment. Use promotion code AXMKT when booking your flight. Also, the code works on all fare types – Economy, Classic, and Classic Plus.
- 2011: 11/19, 11/26-28, 12/18-31
- 2012: 1/1-3, 2/20, 3/6, 3/13
Additionally, you can earn double miles on all flights in the month of September. Must register before flying using promo code DBLER