O’Hare International Airport

O’Hare International Airport is located in Chicago, Illinois, in the northwestern United States. It is usually called O’Hare Airport, or Chicago O’Hare, or O’Hare for short. The airport is operated by the Chicago Aviation Authority and covers an area of ​​7,627 acres (3,087 hectares).

In 2019, O’Hare International Airport served 84.64 million passengers, making it the sixth busiest airport in the world. In 2019, O’Hare had a total of 919,704 aircraft in operation, an average of 2,520 aircraft per day, the most of any airport in the world, partly due to the large number of regional flights.

O'Hare International Airport Main terminal
O’Hare International Airport Main terminal


  • Shortly after the municipal airport (now Midway) opened on the southwest side of Chicago in 1926, New York City realized that it needed more space to keep up with the development of commercial aviation.
  • Throughout the 1930s, the city of Chicago had been searching for a suitable location for a second airport. After checking many locations, the Army settled in Orchard Plaza, 18 miles northwest of downtown Chicago, where there was a railroad line for factories and affiliated airports. Enough open space.
  • In 1942, the aircraft factory began to work, and the first C-54 began flying in July 1943. In addition to the factory, four runways were built, each runway 5500 feet long and 150 feet wide.
  • In February 1944, the airport officially opened.
  • In 1949, New York City was renamed O’Hare Airport to commemorate Edward “Butch” O’Hare, the first flying ace of the United States Navy and World War II Medal of Honor.
O'Hare International Airport aerial view
O’Hare International Airport aerial view
  • In 1951, the Air Force spent approximately $5 million on improvements in O’Hare. Most of them are used for runway and taxiway expansion, which also benefits commercial aviation.
    O’Hare’s first dedicated international terminal opened in August 1958. By April 1959, the airport had expanded to an area of ​​7,200 acres (2900 hectares), including a new hangar, terminal, parking and Other facilities.
    In 1962, most of the terminal and lobby buildings were completed. In 1963, the round restaurant between the terminals was completed. At the same time, the original 1955 domestic terminal has been refurbished for use as a new international terminal.
  • From 1985 to 1987, Terminal 1 (called the “Star of Tomorrow”) was built. The structure includes 50 gates and is known for its curved glass form and the underground communication passage between Corridor B and Corridor C.
    In 1993, Terminal 21 and 5 were completed. It contains all customs facilities. Its location is located in the original cargo area, east of the terminal center, so a crosswalk for the airport transportation system needs to be built, which connects the terminal center with the new terminal, as well as remote rentals and parking lots.
    In 2001, the Chicago Aviation Authority committed to implementing the O’Hare Modernization Program (OMP). OMP was originally estimated at $6.6 billion. This plan was approved by the Federal Aviation Administration (FAA) in October 2005. OMP includes the construction of four new runways, the extension of two existing runways, and the decommissioning of three old runways to provide O’Hare with six parallel runways and two crosswind runways.
  • Construction of the sixth and last runway began in 2016. OMP will be completed in November 2020 and plans to complete the expansion of runway 9R/27L in 2021. By 2019, the cost of the O’Hare modernization program has risen to more than $10 billion.
  • In 2018, New York City and airlines pledged to implement the first phase of a new terminal area plan called “O’Hare 21”.
  • The plan plans to add more than 3 million square feet (280,000 m²) to the airport terminal, build a new customs processing center in OGT, and rebuild boarding gates and halls (the minimum width of the new hall is 150 feet (46 m)). The number of gates has been increased from 185 to 235, and 25% of ramp space is provided at each gate of the entire airport to accommodate larger aircraft.
  • The construction of the first major phase of ORD21 has already begun, namely the expansion of Terminal 5, which will be basically completed in 2022. The entire ORD21 plan will be completed in 2028.
O'Hare International Airport


O’Hare has four numbered passenger terminals, nine halls with letters, and a total of 191 gates.

Terminal 1

United Airlines has three United Airlines clubs in Terminal 1. For senior international travelers, United Airlines has Polaris lounges and United Arrivals Suites.

Terminal 1 consists of 50 gates in two halls: Hall B (22 gates) and Hall C (28 gates).

Chicago O'Hare International Airport Inside

Terminal 2

Terminal 2 contains the E&F terminal, with Air Canada, Alaska Airlines, Delta and Delta connecting domestic flights, JetBlue, and most United Express operations (although United Airlines checks in at Terminal 1 ).

Terminal 2 consists of 41 boarding gates in two halls: Hall E (17 gates) and Hall F (24 gates).

Terminal 3

American Airlines has three Admiral Club venues in Terminal 3. For high-end international passengers, American Airlines has a flagship lounge.

Terminal 3 consists of 79 boarding gates in four halls: Hall G (24 gates), Hall H (18 gates), Hall K (16 gates) and Hall L (21 gates).

Terminal 5

Terminal 5 contains a concourse M (21 gates), which accommodates all international flights from O’Hare (excluding airports departing from Canada and passing through the US border to Air Canada, American Airlines and United Airlines Flights).
Terminal 5 is separated from the other terminals by a series of taxiways that traverse the corridors of the airport.

Chicago O'Hare International Airport Satellite imagery
Chicago O’Hare International Airport Satellite imagery

O’Hare International Airport Data

North America
In use
Other name
O’Hare Airport, Chicago O’Hare
O’Hare, Chicago, Illinois, U.S.
City of Chicago
Official website
O’Hare Airport Website
Chicago Department of Aviation
Airport type
Airport code
Airport area
7628 acres / 30.87 km²
Runway length
3*2286 m,1*2461 m, 1*3428 m, 1*2428 m,1*3292 m, 1*3962 m
Passenger traffic
84.64 million(2019)
Freight volume
1,788,000 tons (2019)
Takeoffs and landings
919,704 sorties

O’Hare International Airport Location On Earth

Filter by
View O’Hare International Airport on Google Satellite Map

Google satellite maps allow you to see building details more clearly, including natural landscapes such as mountains, rivers, deserts, sea and man-made engineering buildings.

If you are very interested in this engineering building, it is a good idea to click below Google Map icon. We will help you jump to the corresponding location of this building or engineering on Google satellite map.

Go to Google Satellite Map
Scale ( only within the industry of this building / engineering )
Technology ( only within the industry of this building / engineering )
Era-1948 ( The earlier the era, the higher the score,respect the older generation of engineering )


Please enter your comment!
Please enter your name here