Cheyenne Regional Airport, CYS, is also known as Jerry Olson Field. It is currently served by Great Lakes Airlines who is also headquatered here. Great Lakes flies the world's largest fleet of Beechcraft 1900, and serves Denver from CYS. Beginning on July 15th, 2010 American Eagle started nonstop service to Dallas/Fort Worth, Texas using ERJ's but this service is questionable following AMR's bankruptcy. In addition to the scheduled service, occasional charter flights to Laughlin or Wendover, Nevada are offered. United Airlines heavily uses this airport for diversions of its Denver International Airport bound flights due to its close-to-Denver location and 9,270 foot long runway. The current terminal was built in 1961 and is relatively unremodeled. United has a long and illustrious history here. Cheyenne was home to United's stewardesses training center where the first stewardess was trained. This training occurred through 1961 when the facility was moved back to United's headquarters in Chicago, IL. Cheyenne was also a stop on United's mainline transcontinental flights going back to the days of the Boeing 247.