Hartsfield–Jackson Atlanta International Airport

Hartsfield–Jackson Atlanta International Airport (IATA: ATL, ICAO: KATL, FAA LID: ATL) is the primary international airport serving Atlanta and its surrounding metropolitan area, in the U.S. state of Georgia. It is located 10 mi (16 km; 8.7 nmi) south of the Downtown Atlanta district, and is named after former Atlanta mayors William B. Hartsfield and Maynard Jackson.

Since 1998, Hartsfield–Jackson has been the world's busiest airport by passenger traffic, with the exception of 2020, when its passenger traffic dipped for that year due to travel restrictions resulting from the COVID-19 pandemic. In 2023, Hartsfield–Jackson served over 104.6 million passengers, the most of any airport in the world. It is also the world's busiest airport by aircraft movements. In 2024, Hartsfield–Jackson was again named the busiest airport in the world and saw 2% more capacity than the previous year.

Hartsfield–Jackson is the corporate headquarters and primary hub of Delta Air Lines. With just over 1,000 flights a day to 225 domestic and international destinations, the Delta hub is the world's largest airline hub and is considered the first mega-hub in America. Additionally, Hartsfield–Jackson is the home of Delta's Technical Operations Center, which is the airline's primary maintenance, repair and overhaul arm. Aside from Delta, Hartsfield–Jackson is also an operating base for low-cost carriers Frontier Airlines, Southwest Airlines, and Spirit Airlines. The airport has international service within North America and to Latin America, Europe, Africa, the Middle East and East Asia.

Hartsfield–Jackson is mostly in unincorporated areas of Clayton County, but it spills into the city limits of Atlanta, College Park, and Hapeville, in territory extending into Fulton County. Its domestic terminal is served by MARTA's Red and Gold rail lines. Hartsfield–Jackson covers 4,700 acres (7.3 sq mi; 19 km²) of land and has five parallel runways which are aligned in an east–west direction. There are three runways that are 9,000 feet (2,743 m) long, one runway that is 10,000 feet (3,048 m) long, and the longest runway at ATL measures 12,390 feet (3,776 m) long, which can handle the Airbus A380.