What city does the code MCI represent?

The code MCI represents Kansas City, Missouri. This airport code is derived from the name of the major airport serving the Kansas City area, which is Kansas City International Airport. It is common for airports to use the first letter of the city name along with another letter that distinguishes it from other cities with similar names.

Kansas City International Airport is not only a key hub for Southwest Airlines but also serves as a significant transportation center in the region, connecting various domestic and international flights. This context helps to solidify why MCI is associated with Kansas City, MO specifically, as it serves the area's travel needs effectively compared to the other locations mentioned, which each have their own distinct airport codes.