Frontier Airlines

The merger of Monarch, Challenger, and Arizona Airways created Frontier Airlines, which began serving the public on June 1, 1950. The new airline succeeded because it serviced a part of the country that had been ignored by the rest of the airline industry. In 1965, Frontier announced it would build a five million dollar hangar and office building complex at Stapleton International Airfield in Denver, Colorado, its base of operations. During the 1980s Frontier began to lose money and finally filed for bankruptcy on August 29, 1986 after an unsuccessful attempt to sell the working airline to United.

From the description of Frontier Airlines records, 1940-2009. (Denver Public Library). WorldCat record id: 58801836

Colorado air carrier, established in 1950, by merger of Monarch Airlines and Challenger Airlines, flourishing until 1983, when Frontier Horizon Airlines was established. Frontier Horizon ceased operations in 1986.

From the description of Records : 1951-1986 ;. (Colorado Newspaper Project, Colorado Historical Society). WorldCat record id: 26924596