Compass Airlines, LLC is a regional airline headquartered in Delta Air Lines Building C at Minneapolis−Saint Paul International Airport in Fort Snelling, Hennepin County, Minnesota; prior to December 16, 2009, it was headquartered in unincorporated Fairfax County, Virginia, United States, east of the Chantilly CDP. The airline launched inaugural service with a single Bombardier CRJ200LR aircraft under the Northwest Airlink (now Delta Connection) brand between Minneapolis/St. Paul and Washington, D.C. on May 2, 2007. On August 21, 2007, it began flying two Embraer 175 76-passenger aircraft, and expanded to 36 aircraft by December 2008.