our history The original Frontier Airlines was Denver\'s hometown carrier for 40 years before it was purchased in 1986. The airline carried 87 million passengers over the years and was known for great service and an outstanding safety record. In 1993, executives from the original Frontier Airlines, as well as some newcomers to the industry, gave the old Frontier a fresh start. They were looking to fill gaps in Denver\'s mainstream hub-and-spoke system. We launched on July 5, 1994 with 180 employees and two Boeing 737-200s on routes between Denver and Bismarck, Fargo, Grand Forks and Minot, N.D. Today, Frontier Airlines is a wholly-owned subsidiary of Republic Airways Holdings Inc, an airline holding company that also owns Chautauqua Airlines, Republic Airlines, and Shuttle America. Frontier operates its primary hub at Denver International Airport. Frontier serves more than 80 destinations in the United States, Costa Rica, the Dominican Republic, and Mexico. Check out some of the highlights from over the years: 1993-1998 1999-2004 2005-2009