What is the origin of the abbreviation “ORD” for Chicago airport?

Air Travel

By Kristy Tolley

The Mystery behind "ORD"

For many travelers, the abbreviation "ORD" is a familiar sight when booking a flight to or from Chicago. However, few people know the story behind this cryptic code. The origin of "ORD" has been a topic of debate among aviation enthusiasts and Chicago history buffs for decades, with various theories proposed to explain its meaning. In this article, we will explore the history of Chicago’s airports and the birth of O’Hare International Airport, as well as delve into the possible origins of "ORD" and its significance in aviation lingo.

A Brief History of Chicago’s Airports

Chicago has a rich aviation history, dating back to the early 20th century when the city’s first airport, Ashburn Field, opened in 1916. Over the next few decades, several other airports were built in the Chicago area, including Midway Airport and Meigs Field. However, as air travel became more popular in the post-World War II era, the city realized the need for a larger, more modern airport to handle increased traffic.

The Birth of Chicago O’Hare International Airport

In 1945, the city of Chicago purchased a large tract of land in the northwest suburbs with the intention of building a new airport. Originally called Orchard Field, the airport was renamed O’Hare International Airport in 1962 in honor of Lieutenant Commander Edward "Butch" O’Hare, a World War II hero and Chicago native. Today, O’Hare is one of the busiest airports in the world, serving millions of passengers each year and connecting Chicago to destinations around the globe.

The Name Game: How ORD Got Its Abbreviation

So how did "ORD" come to be associated with O’Hare International Airport? While there is no definitive answer, several theories have been proposed over the years. One possibility is that "ORD" is simply a shortened version of "O’Hare," with the last two letters transposed. Another theory is that "ORD" was derived from the airport’s original name, Orchard Field.

Theories on the Origin of "ORD"

Despite the popularity of these theories, there is no concrete evidence to support them. Some aviation enthusiasts have suggested that "ORD" may have a military origin, as many airports in the United States were used by the military during World War II. Alternatively, it has been suggested that "ORD" may be a reference to the airport’s location in the town of Orchard Place, which was renamed the village of Schiller Park in 1952.

Could "ORD" Stand for Orchard Field?

One of the most widely accepted theories is that "ORD" is indeed a reference to Orchard Field, the airport’s original name. According to this theory, the abbreviation was created by the Chicago Department of Aviation in the 1940s or 1950s, possibly as a way to distinguish O’Hare from other airports in the area. However, it is unclear why the abbreviation would use the letters "O" and "D" instead of "O" and "F" if it was meant to refer to Orchard Field.

The Role of Military Code in "ORD"

Another theory is that "ORD" was derived from a military code used during World War II. In this code, the letter "O" represented the word "Ordnance," which referred to military supplies and equipment. It is possible that "ORD" was used as a code name for the airport when it was used by the military, and the abbreviation stuck after the airport was returned to civilian use.

The Evolution of "ORD" in Aviation Lingo

Regardless of its origin, "ORD" has become firmly entrenched in aviation lingo as the official abbreviation for O’Hare International Airport. Over the years, the code has been used in airport codes, flight schedules, and other aviation-related documents. It has also become a familiar sight to travelers, who may see it on their boarding passes or luggage tags.

"ORD" vs. "MDW": What’s the Difference?

Chicago is home to two major airports: O’Hare International Airport (ORD) and Midway International Airport (MDW). While both airports serve the Chicago area, they are located in different parts of the city and have distinct histories and characteristics. O’Hare is the larger of the two airports, serving as a major hub for several airlines and offering a wide range of international destinations. Midway, on the other hand, is a smaller airport that primarily serves domestic destinations and low-cost carriers.

How "ORD" Became Synonymous with Chicago

For many travelers, "ORD" has become synonymous with Chicago itself. The airport’s size and prominence have made it a major gateway to the city, and its location just a few miles from downtown makes it a convenient option for visitors. Additionally, the airport’s reputation for efficiency and reliability has helped to cement its status as one of the world’s top airports.

Fun Facts about O’Hare International Airport

As one of the busiest airports in the world, O’Hare International Airport has a rich history and many interesting facts and trivia. For example, the airport has its own zip code (60666) and post office, as well as a chapel and yoga room for travelers. It is also home to one of the world’s largest airport art collections, with over 70 pieces on display throughout the terminals.

Conclusion: Decoding the Enigma of "ORD"

While the origin of "ORD" may remain a mystery, its significance as a symbol of O’Hare International Airport and Chicago itself is clear. Whether you are a frequent traveler or a first-time visitor, the sight of "ORD" on your boarding pass or luggage tag is a reminder of the airport’s rich history and its importance as a gateway to the world.

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Kristy Tolley

Kristy Tolley, an accomplished editor at TravelAsker, boasts a rich background in travel content creation. Before TravelAsker, she led editorial efforts at Red Ventures Puerto Rico, shaping content for Platea English. Kristy's extensive two-decade career spans writing and editing travel topics, from destinations to road trips. Her passion for travel and storytelling inspire readers to embark on their own journeys.

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