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Chicago O'Hare International Airport continues to lead as the world's busiest airport by flight movements, with 2,442 daily passenger aircraft operations in June. This status is attributed to its role as a hub for American Airlines and United Airlines, which together account for approximately 85% of services.
According to Cirium Diio data, O'Hare's daily movements have increased by 13.3% compared to last year, rising from 2,154 to 2,442. This growth contrasts with the overall increase of just 3.9% at all U.S. airports during the same period. As a result, O'Hare's share of national air traffic has grown from 7.6% to 8.3%.
Despite this increase in flights, O'Hare has not yet returned to pre-pandemic levels; in June 2019, it recorded 2,616 takeoffs and landings. A decline in regional jet flights partly explains this discrepancy, although seats per flight have risen from an average of 114 to 125.
