What is the airport code for Phoenix, Arizona?

The airport code for Phoenix, Arizona, is PHX, which is derived from the city's name and is used primarily by the Phoenix Sky Harbor International Airport. Airport codes, often referred to as International Air Transport Association (IATA) codes, are unique three-letter identifiers assigned to airports worldwide.

In this case, PHX effectively represents the city of Phoenix and is recognized universally within the aviation and travel industries. This code is essential for flight schedules, ticketing, and baggage handling, helping ensure that travelers and airlines can communicate clearly and avoid confusion regarding airport locations. The other options represent different airports, which do not correspond to Phoenix, making PHX the correct representation of the city's major airport.