Frontier Airlines is launching new seasonal service from its Denver, Colo. (DEN) hub to Eugene, OR (EUG) starting May 16, 2013, and resuming year-round service from Denver (DEN) to Fresno, CA (FAT) starting May 17, 2013. To celebrate the new service, Frontier is offering fares as low as $69 to Fresno and $79 to Eugene each way available for purchase through Feb. 23, 2013 on the airline’s website. Customers can book for travel through Sept. 8, 2013 to these locations and more than 80 destinations.