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.
Aviacsa Consorcio Aviaxsa, S.A. de C.V., doing business as Aviacsa, was a low-cost airline of Mexico with its headquarters in Hangar 1 of Zone C on the property of Mexico City International Airport in Venustiano Carranza, Mexico City, Mexico. The airline operated domestic services until the airline's grounding, radiating from major hubs at Monterrey, Mexico City and Guadalajara and international service to Las Vegas, Nevada in the USA. Aviacsa also had a U.S. office in Houston.