Frontier Airlines will launch new service in Colorado Springs, Columbus, Pittsburgh and San Antonio starting in April, May and June as well as expand service from its largest market in Denver. Frontier is offering special introductory fares as low as $19 one-way on these new routes as of today at Flyfrontier.com. With The WORKSsm, fares will be as low as $112.
Customers can take advantage of Fr...