OHare

O’Hare International Airport, IATA ORD, is a major international airport on the northwest side of Chicago in Cook County, Illinois, United States. Opened in 1955 and named for Edward “Butch” O’Hare, a U.S. Navy fighter ace and Medal of Honor recipient, it is operated by the City of Chicago Department of Aviation. It is one of the busiest airports in the United States by passenger traffic and serves as a principal international gateway for the Chicago area.

O’Hare has grown into a significant aviation hub, particularly for United Airlines. The airport underwent the O’Hare Modernization Program (OMP), a long-running effort to increase capacity through runway expansions, terminal improvements, and enhanced ground transportation.

The airport comprises four passenger terminals: 1, 2, 3, and 5. They are connected by the Airport Transit System, an automated people mover, and various pedestrian linkages. Terminal 5 handles most international arrivals and departures, while the other terminals host a mix of domestic and international services and carriers.

O’Hare serves numerous domestic and international airlines and offers extensive cargo facilities. It functions as a major hub for United Airlines and a significant international gateway for several other carriers.

O’Hare is located about 17 miles (27 kilometers) from downtown Chicago and is accessible via major expressways, including I-90/94 and I-190. Ground transportation options include the CTA Blue Line to downtown Chicago, various bus services, taxis, rideshare, and a dedicated rental car center.