
Chicago O'Hare International Airport (IATA: ORD) is one of the busiest airports in the world. The airport is named after Edward Butch O'Hare, the U.S. Navy's first flying ace and Medal of Honor recipient in World War II. However, the airport's IATA code ORD does not reflect this name change. The acronym is a remnant of the airport's former name, Orchard Field Airport, which was renamed in the mid-1940s.
| Characteristics | Values |
|---|---|
| Airport Name | O'Hare International Airport |
| Location | Chicago, Illinois, US |
| IATA Code | ORD |
| ICAO | KORD |
| FAA LID | ORD |
| Previous Name | Orchard Field Airport |
| Year of Rename | 1949 |
| Rename Reason | To honour Edward "Butch" O'Hare, the U.S. Navy's first flying ace and Medal of Honor recipient in World War II |
| Previous Use of Location | Orchard Place, an aircraft factory |
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What You'll Learn
- The airport was renamed in 1949 to honour Edward Butch O'Hare, a US Navy flying ace
- ORD stands for Orchard Field, the airport's previous name
- Orchard Field was once an aircraft factory known as Orchard Place
- The IATA code ORD was assigned when the airport was renamed Orchard Field in the 1940s
- O'Hare is one of the few IATA codes with no connection to the airport's name

The airport was renamed in 1949 to honour Edward Butch O'Hare, a US Navy flying ace
The airport was originally called Orchard Place Airport or Orchard Field, named after the small community of Orchard Place, where it was located. This name was used from its inception in the 1940s until 1949. The airport's original IATA code was therefore ORD, derived from the first three letters of "Orchard."
In 1949, the airport was renamed O'Hare International Airport to honour the memory of Lieutenant Commander Edward H. "Butch" O'Hare. Edward O'Hare was a highly decorated US Navy pilot and the first ever US Navy ace. He received the Medal of Honour for his courageous solo attack on a formation of Japanese bombers during World War II. This action saved the aircraft carrier USS Lexington from serious damage. O'Hare was later killed in action in 1943.
Despite the name change to O'Hare Airport, the airport code remained as ORD, a reminder of the airport's original name, Orchard Field. This is a common practice for airports worldwide, where the airport code often reflects a historical name or a nearby city or landmark, even if the official name has changed.
The airport has become a major hub for international travel, and its name and code are now synonymous with the city of Chicago. The airport is a source of pride for the city and a reminder of the brave actions of Edward "Butch" O'Hare, ensuring that his memory lives on.
I hope that helps explain the reason behind the airport's acronym!
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ORD stands for Orchard Field, the airport's previous name
Chicago O'Hare International Airport is one of the busiest airports in the world. The airport's IATA code is ORD, which stands for Orchard Field, the airport's previous name.
The airport was originally an aircraft factory called Orchard Place. It later became a commercial airfield, known as Orchard Field Airport. In the mid-1940s, the airport was renamed Orchard Field Airport, and it was assigned the IATA code ORD. The airport was used extensively by the United States Air Force during the Korean War.
In 1949, the airport was renamed O'Hare Airport to honour Edward "Butch" O'Hare, the U.S. Navy's first flying ace and Medal of Honor recipient in World War II. The IATA code, however, remained unchanged, resulting in O'Hare being one of the few IATA codes that do not correspond to the airport's name or location.
The airport's original name, Orchard Field, is still reflected in its IATA code, ORD, which is used on airline tickets, baggage tags, and weather maps. O'Hare Airport has since become a major international hub, offering non-stop flights to numerous destinations worldwide and ranking as one of the busiest airports globally.
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Orchard Field was once an aircraft factory known as Orchard Place
Orchard Field, known as O'Hare Airport today, was once an aircraft factory called Orchard Place. The area was a small, rural, unincorporated community in Cook County, Illinois, just west of Chicago. It was established in the early 20th century and was characterised by farmland and orchards, from which it derived its name.
In 1942, the War Production Board of the United States purchased 1,347 acres of this land, which was well-suited for the construction of a large aircraft factory. The Douglas Aircraft Company built C-54 "Skymaster" cargo planes at the facility, which was named Orchard Place Airport/Douglas Field. Four runways were constructed for the delivery of manufactured aircraft. The airport was also the site of the Army Air Force's 803 Special Depot, which stored rare and experimental planes, including captured enemy aircraft.
After World War II, aircraft production at the Douglas plant ceased, and in 1946, the U.S. government transferred 1,080 acres of the airport land to the City of Chicago. The city chose the site to meet future aviation demands and renamed it Orchard Field Airport. The IATA code ORD was assigned, which stands for Orchard Field, the former military base that occupied the area.
In 1949, the airfield was renamed Chicago O'Hare International Airport, honouring naval aviator Edward "Butch" O'Hare, the U.S. Navy's first Medal of Honor recipient during World War II. O'Hare International Airport opened to commercial air traffic in 1955 and was dedicated by President John F. Kennedy in 1963. Today, it is one of the busiest airports in the world, with non-stop flights to 249 destinations across the globe.
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The IATA code ORD was assigned when the airport was renamed Orchard Field in the 1940s
The O'Hare International Airport in Chicago, Illinois, is one of the busiest airports in the world. The IATA code ORD was initially assigned when the airport was renamed Orchard Field Airport in the mid-1940s.
Before becoming one of the busiest airports globally, O'Hare International Airport was the site of an aircraft factory known as Orchard Place. The area was used extensively by the United States Air Force during the Korean War. The airport then had no scheduled airline service. Later, it became a commercial airfield, known as Orchard Field. The "ORD" designation is derived from the word "Orchard," referencing the airport's former name.
In 1949, the airport was renamed O'Hare Airport to honour Edward "Butch" O'Hare, the U.S. Navy's first flying ace and Medal of Honor recipient in World War II. The IATA code ORD remained unchanged, making O'Hare one of the few airports with an IATA code unrelated to its name or location. Scheduled passenger service at O'Hare Airport began in 1955, but growth was initially slow.
The IATA code, or International Air Transport Association code, is a unique three-letter identifier for airports around the world. These codes are used on airline tickets, baggage tags, and weather maps. Many airport codes are based on the original name of the airport or the previous installation on the site. For example, the code for St. Petersburg-Clearwater International Airport is PIE, derived from its previous name, Pinellas Army Airfield.
O'Hare International Airport is known for its innovative design, pioneering concepts such as concourses, direct highway access to the terminal, jet bridges, and underground refuelling systems. The airport currently offers non-stop flights to 249 destinations across the globe and is considered the most connected airport in the United States.
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O'Hare is one of the few IATA codes with no connection to the airport's name
O'Hare International Airport in Chicago, Illinois, is one of the few airports with an IATA code that has no connection to its name. The airport's IATA code is ORD, which stands for Orchard Field, a military base that once occupied the area. The airport was renamed in 1949 to honour Edward "Butch" O'Hare, a local war hero and the U.S. Navy's first flying ace and Medal of Honour recipient during World War II.
The IATA code ORD was assigned to the airport when it was known as Orchard Field Airport in the mid-1940s. During this time, the airport served as an aircraft factory called Orchard Place and was later used as a commercial airfield. Despite the name change to O'Hare Airport, the IATA code remained unchanged, creating a disconnect between the airport's name and its code.
This disconnect between the airport's name and its IATA code is relatively uncommon. Typically, airport codes are based on the original name of the airport or the installation that previously occupied the site. For example, the code for St. Petersburg-Clearwater International Airport is PIE because it was once a military installation known as Pinellas Army Airfield. Similarly, Spokane International Airport in Washington was named Geiger Field, which is why its airport code is GEG.
The IATA codes are three-letter identifiers used on airline tickets, baggage tags, and weather maps. In the case of O'Hare Airport, the ORD code has persisted despite the name change, becoming one of the few IATA codes that do not directly relate to the airport's name or location.
O'Hare International Airport is a significant aviation hub, ranking as one of the busiest airports in the world. Its extensive flight network offers non-stop flights to numerous destinations across the globe, contributing to its reputation as the most connected airport in the United States.
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Frequently asked questions
The three-letter airport identifier “ORD” is derived from Orchard Field, a military base that occupied the area before the airport was built.
Chicago O'Hare International Airport.
In 1949, the airport was renamed O'Hare Airport to honour Edward "Butch" O'Hare, a local war hero and the U.S. Navy's first flying ace and Medal of Honour recipient.
The IATA code for O'Hare Airport is ORD.
O'Hare Airport is one of the busiest airports in the world and was the first major airport planned after World War II. It is known for its innovative design, including concourses, direct highway access, jet bridges, and underground refuelling systems.











































