Which airport code corresponds to Phoenix, Arizona?

The airport code that corresponds to Phoenix, Arizona, is PHX. This code is designated for Phoenix Sky Harbor International Airport, which serves as the main airport for the city and is one of the busiest airports in the United States.

In airline and airport operation contexts, airport codes typically follow the format set by the International Civil Aviation Organization (ICAO) and the International Air Transport Association (IATA). The IATA codes are usually three-letter codes that help in identifying airports and are widely used in airline ticketing and travel itineraries.

PHX specifically denotes the airport's primary location, allowing travelers and airlines to easily recognize it as the designated code for Phoenix. This clarity is crucial in navigation and booking processes within the aviation industry.

The other options do not correspond to Phoenix: PHL is for Philadelphia International Airport, PIT is for Pittsburgh International Airport, and PNS represents Pensacola International Airport. Each of these codes is tied to its respective city, reinforcing how important these codes are in maintaining a standardized identification system across global air travel.