Compass Airlines, LLC, was a regional airline in the United States that operated from 2006 to 2020, when it shut down due to the COVID-19 pandemic. It was 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 CRJ-200 aircraft under the Northwest Airlink brand between Minneapolis/St. Paul and Washington, D.C., on May 2, 2007. On August 21, 2007, it began flying two Embraer E175 76-passenger aircraft, and expanded to 36 aircraft by December 2008.

Chantilly is a census-designated place (CDP) in western Fairfax County, Virginia. The population was 24,301 as of the 2020 census. Chantilly is named after an early-19th-century mansion and farm, which in turn took the name of an 18th-century plantation that was located in Westmoreland County, Virginia. The name "Chantilly" originated in France with the Château de Chantilly, about 28 miles north of Paris.