Which city corresponds to the airport code OAK?

The airport code OAK corresponds to Oakland, California. Each airport in the United States is assigned a unique three-letter code by the International Air Transport Association (IATA) to facilitate easy identification. OAK is an abbreviation that directly reflects the name of the city, Oakland, making it intuitive for travelers and those familiar with air travel codes. This code is widely recognized in booking systems, travel itineraries, and boarding passes, clearly indicating that it represents the major airport serving Oakland, which is Oakland International Airport.

In contrast, the other options represent different cities with their own unique codes. For example, Orlando, Florida has the airport code MCO, Oklahoma City, Oklahoma is represented by OKC, and Omaha, Nebraska has the code OMA. Thus, OAK is exclusively associated with Oakland, asserting its correct correspondence to the city of Oakland, California.