Frontier Becomes 4th U.S. Airline in Month to File for Bankruptcy

Frontier Becomes th U S Airline in Month to File for Bankruptcy First Data Corporation Denver Sean E Menke Steve Synder United States Frontier Airlines Inc Jamie Baker Ray Neidl Warsaw Virginia Aloha Air Group Inc American Airlines Inc Calyon Securities Inc Denver International Airport JP Morgan Chase Co Ronald Reagan Washington National Airport 04/12/08

Frontier Airlines, a low-cost carrier based in Denver, filed for bankruptcy protection yesterday, becoming the fourth U.S. airline to apply for Chapter 11 in the past month.