5 Biggest Airports in the World

#4 O’Hare International Airport

2021 Number of Passengers: 54,020,399

O’Hare International Airport is one of the busiest airports in the world given it handled over 54 million passengers in 2021. Considering Chicago’s location in the United States, the airport handles a lot of domestic flights as it is a major connection hub for flights that have more than one stop. O’Hare International Airport offers 760 daily domestic flights to 152 U.S. cities and 95 daily direct flights to 58 international destinations as of January 2023.