What is the city code for Tucson, Arizona?

The city code for Tucson, Arizona, is TUS. This three-letter code is part of the IATA (International Air Transport Association) airport coding system, which assigns unique identifiers to airports around the world. Tucson International Airport, which serves the city, is designated as TUS, ensuring consistency and easy recognition in travel planning and ticketing systems.

The other options do not correspond to the official IATA code for Tucson. TUO, TUC, and TACA are not valid codes for Tucson International Airport, making TUS the only correct choice for representing Tucson in the context of airline travel. Understanding these codes is essential for travelers, as they simplify the booking process and facilitate communication within the airline industry.