What does the airport code CID stand for?

The airport code CID stands for Cedar Rapids, Iowa. This three-letter code is used to identify Eastern Iowa Airport, which serves Cedar Rapids and the surrounding area. Airport codes are typically derived from the city's name or the primary airport serving that region, and CID is a reflection of Cedar Rapids' significance in that geographical location. Knowing the correct airport codes is crucial for airline operations, ticketing, and travel itineraries, as it helps prevent confusion and ensures accurate routing for flights. The other options represent different cities and their respective airports, which have their own distinct codes: Columbus, OH is CMH, Dallas/Fort Worth, TX is DFW, and Des Moines, IA is DSM. Understanding these airport codes is fundamental for anyone working within the aviation industry, as it aids in communication and logistics.