Quantcast

Obscure U.S. airport codes reveal historic origins and naming conventions

Exclusive: Turkey's surprise Air Europa deal came down to one key thing: control
Major airline launches exciting new route from Scotland to popular US location
Airlines fear carbon tax as flagship climate scheme develops holes
Ryanair scraps three Vienna routes, demands lower taxes and fees
Turkish Airlines has no intention of raising stake in Spain's Air Europa, chairman says
US lawmakers want Trump to reinstate delay compensation plan for air travelers
IATA pushes to raise international pilot retirement age to 67
US orders Delta and Aeromexico to dissolve their partnership over fairness concerns in Mexico
Southwest’s New Wheelchair Policy Will Require Passengers to Remove 1 Item Before Boarding — What to Know
Aviation expansion: IndiGo to start direct Mumbai-Copenhagen flights from Oct 8; marks entry into Nordics - The Times of India
Major change for ALL Aer Lingus passengers flying from busy airport to offer 'modern and streamlined' experience
Southwest Airlines adds Sonoma County in California expansion - The Points Guy
Routes & Networks Latest: Rolling Daily Updates (W/C Sept. 8, 2025)
Delta Sees Record Premium Seats in '26, Main Cabin Flat or Down
Southwest requiring removal of batteries from mobility devices before boarding
EasyJet to launch 11 new flight routes from small UK airport named the best in Europe
Tycoon unveils £25 billion rival Heathrow expansion plan
Boeing and Airbus ground green plane projects
50 New Routes Launching In September 2025
JetBlue's Network Shake-Up: Its Top 10 Routes This Month
Proposals for commercial planes to operate with one pilot shelved after critical EU report
Air Travel Fatalities Up 300% in 2024, According to Shocking Global Report
Aviation sector faces steeper losses in FY26; passenger growth slows amid headwinds: ICRA - The Times of India
Boeing Halts Strike Talks Amid $36 Billion Deal & Union Dispute
FAA’s Broader Runway Safety Push Builds on EMAS Legacy
Ryanair CEO says aviation sustainability targets are 'dying a death'
US FAA funds system to prevent accidents involving runaway airplanes
Exclusive: Korean Air makes airline's biggest-ever Boeing jet order amid Trump-Lee summit
Boeing Stock Jumps on Massive Korean Air Order
2025 Air Canada flight attendants strike - Wikipedia
Obscure U.S. airport codes reveal historic origins and naming conventions
Policy
Webp 5r3vc2svdh8ibaxk8gr8iutw0za2
Simple Flying | Simple Flying

Plenty of airports around the world retain their old IATA codes even after changing names. This practice extends to some railway stations as well. In the United States, several airports have obscure codes that trace back to historical reasons.

IATA airport codes are challenging to change once assigned, requiring strong justification for any alterations. A spokesperson from IATA explained, "IATA airline codes cannot be changed unless there is a strong justification for such a change. Request for changes should be made through the IATA customer portal at www.iata.org/cs with a detailed explanation on why the code needs to be changed. IATA cannot entertain requests for changes for improvement in marketing or branding of the airline."

These codes are crucial as they form an integral part of the travel industry's infrastructure and systems. As stated by IATA, "IATA Codes are an integral part of the travel industry and essential for the identification of an airline, its destinations and its traffic documents."

Get the Newsletter
Sign-up to receive weekly round up of news from Sky Industry News
By submitting, you agree to our Privacy Policy and Terms of Service. By providing your phone number you are opting in and consenting to receive recurring SMS/MMS messages, including automated texts, to that number from our short code. Msg & data rates may apply. Reply HELP for help, STOP to end. SMS opt-in will not be sold, rented, or shared.

One example is Chicago O'Hare International Airport with the code "ORD," originating from its former name Orchard Field Airport during World War II. The airfield was named after Edward "Butch" O'Hare post-war but retained its original code.

The US Navy has reserved all codes starting with "N," preventing civilian use of such identifiers within the United States. This regulation explains why Newark Liberty International Airport uses "EWR" instead of a code beginning with "N."

New Orleans Louis Armstrong Airport adopted MSY based on Moisant Stock Yards due to this restriction, while Nashville chose BNA from Berry Nashville Airport's original name.

Originally using two-letter codes in aviation's early days, airlines switched to three-letter designations in response to increased air travel demand and potential confusion. For instance, Los Angeles International transitioned from LA to LAX in 1947.

Canadian airports present unique cases due to historical radio station coding practices: Montreal-Trudeau became YUL by adding a confirming 'Y' prefix indicating proximity to a weather station radio tower.

Organizations Included in this History
More News

Delta Air Lines will introduce new in-flight menu options created by celebrity chef José Andrés starting November 4.

Oct 25, 2025

The Blue Sky partnership between United Airlines and JetBlue launched today, allowing members of both airlines’ loyalty programs to earn and redeem points across the two carriers.

Oct 25, 2025

Air Canada is set to expand its presence at Billy Bishop Toronto City Airport (YTZ) by introducing four new nonstop routes to the United States in 2026.

Oct 25, 2025

United Airlines has announced it will add 10 new destinations from its Chicago O'Hare International Airport hub starting next year.

Oct 25, 2025

The partnership between United Airlines and JetBlue, known as Blue Sky, has officially launched.

Oct 25, 2025

American Airlines will introduce its new Airbus A321XLR aircraft on December 18, marking the first time a U.S. airline operates this model.

Oct 25, 2025