What is the airport code for Cancun, Mexico?

The correct airport code for Cancun, Mexico, is CUN. This three-letter designation is part of the International Civil Aviation Organization (ICAO) and International Air Transport Association (IATA) coding systems, which provide standardized abbreviations to identify airports around the world.

CUN specifically refers to Cancun International Airport, which is the primary gateway to the popular tourist destination known for its beaches and resorts. The other options do not correspond to Cancun; for instance, CMI refers to University of Illinois Willard Airport in Illinois, CHS is for Charleston International Airport in South Carolina, and CLT is the code for Charlotte Douglas International Airport in North Carolina. Understanding these codes is essential for travelers and those involved in aviation logistics.