Which city is indicated by the airport code CMH?

The airport code CMH refers to Columbus, Ohio, specifically the John Glenn Columbus International Airport. Each airport code is typically a three-letter designation used for airline and travel purposes, allowing for easy identification of airports. In this case, the letters "CMH" are derived from the first letter of Columbus combined with the last two letters of the city's name, which is a common naming convention with airport codes.

Columbus is the largest city in Ohio and serves as a significant hub for American Airlines and other carriers, which further solidifies the connection between the city and its airport code.