Hartsfield Jackson Atlanta International Airport — Atlanta, United States

Hartsfield-Jackson Atlanta International Airport (ATL) is one of the world's busiest airports by passenger volume, a distinction it has held for years running. Located in Atlanta, Georgia, the field measures 1,026 feet in elevation, and five parallel runways give it exceptional capacity for simultaneous arrivals and departures. Its name honors two former Atlanta mayors, William B. Hartsfield and Maynard Jackson, both credited with championing the airport's growth into a global aviation powerhouse. Delta Air Lines operates its largest hub here, funneling connecting traffic across the southeastern United States and beyond to international destinations on multiple continents. The airport's layout, with an efficient people-mover system linking concourses, was specifically engineered to handle enormous volumes of connecting passengers with minimal delay. Beyond passenger service, Atlanta's airport also handles substantial air cargo tonnage, reinforcing its role as a logistical anchor for the region. Few airports anywhere combine this scale of runway capacity with such a dominant single-carrier hub presence.