Service to Missoula, Mont., from Denver will not begin as had been planned.
Service to Sioux City, Iowa, will end May 12.
Flights to Jacksonville, Fla.; Little Rock, Ark.; Memphis, Tenn.; Tulsa, Okla. will end at the end of May.
Frontier also announce it is ending its code-sharing agreement with Republic Airways and its 12 aircraft, to be completed by mid-June.
Full Story: http://www.denverpost.com/business/ci_9025837