Amsterdam Airport Schiphol (AMS) is consistently ranked as one of the busiest and most important airports in the world, though it is not the largest in terms of physical land area. In 2026, it remains a top-four European hub for passenger volume, handling approximately 68 to 72 million passengers annually. It is a "mega-hub" primarily because of its massive connectivity; it serves over 300 direct destinations across five continents. However, Schiphol is currently facing a unique challenge: the Dutch government has implemented a cap on annual flights (approx. 478,000 movements) to reduce noise and CO2 emissions. Despite this cap, it remains "big" in influence, serving as the home base for KLM and a critical gateway for the SkyTeam alliance. While airports in Dallas or Saudi Arabia may be physically larger, Schiphol’s "one-terminal" layout and status as a global transit engine keep it at the very top of the aviation industry's hierarchy in 2026.