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What is O’Hare International Airport?

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The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
The Editors of Encyclopaedia Britannica

O’Hare International Airport is one of the busiest and most connected airports in the world. Located 17 miles (27 km) northwest of downtown Chicago, it serves as a major hub for domestic and international travel. In 2025 the airport handled 80 million passengers and offered flights to more than 260 destinations.