Hartsfield-Jackson Atlanta International Airport (ATL) remains the busiest airport in the world, with passenger numbers for 2025 and 2026 reaching approximately 105 to 110 million people annually. According to recent aviation data, the airport successfully rebounded to its pre-pandemic highs, averaging nearly 300,000 passengers per day. Atlanta's dominance is driven by its status as the primary hub for Delta Air Lines, which accounts for roughly 75-80% of the airport's traffic. While Dubai International (DXB) is rapidly closing the gap in terms of total seat capacity, Atlanta's high volume of domestic "connecting" passengers keeps it at the top of the global charts. In 2026, the airport continues to operate as a "city within a city," utilizing its massive 7-concourse layout and the Plane Train to move millions of travelers efficiently through the Georgia gateway to destinations across six continents.