Frontier will offer a 15% discount on domestic fares to/from Denver from Thursday, April 5, 2012, through 11:59 p.m. Eastern time, Friday, April 6, 2012. Alaska travel is excluded. The discount will apply only to Classic fares, including sale fares, for travel April 15 through November 14, 2012. All fare rules will apply.

Tickets must be purchased online at FrontierAirlines.com using the promo code CLASSIC. No exceptions will be made.