Why does the USA have so many airports? Because it has so many aircraft. There are about 212,000 general aviation aircraft, and another 7,600 more charter aircraft, not to mention visiting commercial aircraft and military aircraft. The FAA manages about 16 million flights per year.
Why is the busiest airport in the world?
Atlanta Hartsfield-Jackson International Airport (ATL)The Busiest Airport in the World, ATL serves as a major hub for Delta Air Lines, one of the largest and most prominent airlines globally, offering an extensive network of domestic and international flights.
What is the world’s busiest airport outside of the United States?
Dubai International (DXB)Dubai International (DXB) remains the World's Busiest International Airport in November 2023 with 4.8 million seats and London Heathrow Airport (LHR) is the second biggest international airport with 3.7 million seats.