Which air-line flies through Fort  Collins - Loveland Municipal Airport and employees 3,700 employees?
Fort Collins–Loveland Municipal Airport Northern Colorado Regional Airport (IATA: FNL, ICAO: KFNL, FAA LID: FNL) is a public use airport located nine nautical miles (10 mi, 17 km) southeast of the central business district of Fort Collins and northeast of Loveland, both cities in Larimer County, Colorado, United States. It is mostly used for general aviation; scheduled passenger jet service operated by Allegiant Air nonstop to Las Vegas was discontinued in October 2012. The airport supports commercial flights non-stop to Chicago Rockford International Airport by Elite Airways.
Del Rio International Airport Del Rio International Airport (IATA: DRT, ICAO: KDRT, FAA LID: DRT) is two miles northwest of Del Rio, in Val Verde County, Texas. It is used for general aviation, and being near Laughlin Air Force Base it is often used by USAF students. On June 7, 2012 United Express operated by ExpressJet introduced jets nonstop to Houston, previously flown with turboprops. United Express ended service to Del Rio in April 2013.But currently has non-stop service to Dallas/Fort Worth Airport with Texas Sky Airlines.