What is the city code for Hilo, Hawaii?

The city code for Hilo, Hawaii is ITO. This code is derived from the Hilo International Airport's initials, allowing for easy identification of this location when booking flights or referring to air travel. Each airport is assigned a three-letter code, as established by the International Air Transport Association (IATA), and ITO specifically corresponds to Hilo, making it the correct and accurate choice among the options provided.

In contrast, the other codes reference different airports in Hawaii: LIH is the code for Lihue, OGG is for Kahului (Maui), and KOA represents Kona International Airport. Each of these codes indicates distinct Hawaiian cities, which reinforces the importance of understanding and using the right city codes when planning travel.