Delta Air Lines is one of the major airlines of the United States and a legacy carrier. One of the world's oldest airlines in operation, Delta is headquartered in Atlanta, Georgia.

Delta Air Lines is the world-renowned carrier headquartered in Atlanta, Georgia. Its massive corporate headquarters is located at the Hartsfield-Jackson Atlanta International Airport (ATL), which also serves as the airline's primary global hub and the busiest airport in the world. Delta's presence in Atlanta is immense; the company is one of the state's largest private employers and its operations at ATL involve thousands of daily flights connecting to virtually every continent. In 2026, Delta continues to expand its "hometown" footprint, recently launching new direct routes from Atlanta to Riyadh, Saudi Arabia, and Marrakech, Morocco, as part of its second-century growth strategy. The headquarters complex includes the Delta Flight Museum and various training facilities for its pilots and cabin crew. While other airlines operate significant "focus cities" in Atlanta, Delta is the only major legacy carrier that calls the city its permanent home, having moved its headquarters there from Monroe, Louisiana, in 1941.