Which city is indicated by the airport code COS?

The airport code COS refers to Colorado Springs, CO. Each airport has a unique three-letter code assigned by the International Civil Aviation Organization (ICAO) or the International Air Transport Association (IATA) for identification purposes. Colorado Springs Airport specifically has been designated the code COS, making it identifiable to travelers, airlines, and aviation professionals alike.

In this context, knowing airport codes is essential for navigation, booking flights, and ensuring efficient travel experiences. Recognizing the correct code helps avoid confusion, especially since many cities have similar names or codes that may sound familiar. The other choices provided—Cedar Rapids, Columbus, and Charleston—have their own distinct codes (CID, CMH, and CHS respectively), which further ensures that understanding airport codes contributes to better communication and safety in air travel.