Frontier Airlines, Inc. currently operates routes linking its Denver hub to 22 cities. The company has a fleet of 24 leased jets, including seven Boeing 737-200s and 17 larger Boeing 737-300s. Frontier Airlines, Inc. is a low-fare, full-service commercial airline based in Denver which currently serves selected cities across the U.S. For the three months ended 6/30/01, revenues increased 9% to $123.3 million. Frontier is an affordable fare airline that provides service to 24 cities from its Denver hub. The airline is the second largest jet user of Denver International Airport with an average of 103 daily system-wide departures and arrivals.