Which city is served by the airport code COS?

The airport code COS corresponds to Colorado Springs, Colorado. Airport codes are typically derived from the names of the cities or regions they serve, often reflecting an abbreviation of the city name and in this case, COS serves Colorado Springs. Each airport is assigned a unique three-letter code by the International Air Transport Association (IATA), which helps streamline air travel and facilitates communication in the aviation industry.

In this context, the other choices represent different locations entirely. Corpus Christi, Cincinnati, and Cleveland are served by other airport codes, which do not match COS. For instance, Corpus Christi is served by CRP, Cincinnati by CVG, and Cleveland by CLE. This differentiation clarifies how specific three-letter codes provide clear identification for airports across the globe.