FS2004/FSX Delta Airlines Boeing 767-300W. Delta Air Lines is a major United States airline headquartered in Atlanta. The airline operates an extensive domestic and international network serving all continents except Antarctica. The airlines hub at Hartsfield-Jackson Atlanta International Airport is one of the busiest airports by passenger traffic. Delta Air Lines is one of the four founding members of the SkyTeam airline alliance Model by SkySpirit2010. By Juan Rodriguez / AeroSimulaciones.