Which city is represented by the airport code MSY?

The airport code MSY is associated with Louis Armstrong New Orleans International Airport, located in New Orleans, Louisiana. Each airport code follows a specific three-letter format established by the International Civil Aviation Organization (ICAO) and the International Air Transport Association (IATA). In the case of MSY, the code derives from the airport's previous name, Moisant Field, which refers to an early aviator, John Moisant.

Understanding airport codes is essential not just for identifying locations but also for enhancing navigation and flight operations. In this instance, New Orleans is a significant cultural and historical city known for its music, cuisine, and vibrant festivals, such as Mardi Gras. This context solidifies MSY's association with the city, making the answer clear and accurate.

The other options represent different cities, each with its unique airport codes. For example, O'Hare is commonly abbreviated as ORD, while Portland's airport code is PDX, and West Palm Beach uses PBI. These distinctions in airport coding serve as confirmation of where MSY specifically correlates to, reinforcing the correctness of identifying it with New Orleans.