What is the airport code for Phoenix, Arizona?

The airport code for Phoenix, Arizona, is PHX. This three-letter code is assigned specifically to Phoenix Sky Harbor International Airport, which serves as the primary airport for the city and its metropolitan area. Each airport has its unique identifier to streamline communication and operations among airlines and airports, which is why PHX is consistently recognized in scheduling, ticketing, and flight operations for flights to and from Phoenix. The use of a distinct code helps avoid confusion with other airports, ensuring clarity in the aviation industry.