Orlando International Airport — Orlando, United States

Orlando International Airport (MCO) ranks among the busiest airports in the United States, driven overwhelmingly by leisure travel to the theme park corridor that includes Walt Disney World, Universal Orlando, and SeaWorld. The airport's code reflects its origin as McCoy Air Force Base, a Strategic Air Command installation that transitioned to civilian use in the 1970s after the military left. MCO's terminal complex is unusual in its scale, with a central hub connected by an automated people mover to separate airside buildings where gates are located, plus a newer intermodal terminal added in 2022 that brought in rental car facilities and future rail connections. The airport handles enormous seasonal swings tied to school holidays and Florida's tourism calendar. Its central Florida location, roughly midway between Orlando's attractions and the Space Coast, makes it a convenient arrival point for both vacationers and business travelers serving the region's hospitality industry.