Atlanta Still Boards More Passengers Than Dubai, So How Did DXB Steal The Busiest Airport Crown?

For decades, Hartsfield-Jackson Atlanta International Airport (ATL) has been known as the world’s busiest airport. The Georgia hub consistently handled more passengers than any other airport on the planet, thanks largely to its enormous domestic network and its position as the primary connecting hub for Delta Air Lines. Yet in 2026, another airport claimed one of aviation’s most recognizable titles, with Dubai International Airport (DXB) overtaking Atlanta in scheduled seat capacity and reshaping how the industry measures scale.