In what city does and airline with more than $1 billion in annual revenue have its headquarters?
Delta Air Lines Delta Air Lines, Inc. ("Delta"; ) is a major American airline, with its headquarters and largest hub at Hartsfield–Jackson Atlanta International Airport in Atlanta, Georgia. The airline along with its subsidiaries and regional affiliates operate over 5,400 flights daily and serve an extensive domestic and international network that includes 319 destinations in 54 countries on six continents, as of October 2016. Delta is one of the four founding members of the SkyTeam airline alliance, and operates joint ventures with Air France-KLM, Alitalia, Korean Air, China Eastern Airlines, Virgin Atlantic, and Virgin Australia. Regional service is operated under the brand name Delta Connection.
Corporate Air Corporate Air is an airline based in Billings, Montana, United States. It was established in 1981 and operates primarily domestic scheduled cargo services, Feeder service on behalf of FedEx Express, as well as the United States Postal Service. Its main base is Billings Logan International Airport.