Which airport code corresponds to Charlotte, North Carolina?

The airport code that corresponds to Charlotte, North Carolina, is CLT. Charlotte Douglas International Airport, which serves as the primary airport for the region, has the IATA code CLT. This code is used for identifying the airport in ticketing, flight planning, and other aviation-related contexts.

The other options correspond to different airports: CHS is the code for Charleston International Airport in South Carolina, DFW is the code for Dallas/Fort Worth International Airport in Texas, and COS stands for Colorado Springs Airport in Colorado. Each of these codes serves a different geographic location and is designated to their respective airports, making CLT the correct choice for Charlotte, North Carolina.