Identify the airport code for Huntsville.

The airport code for Huntsville is HSV. Each airport is assigned a unique three-letter identifier by the International Air Transport Association (IATA) for ease of reference in travel and booking systems. Huntsville International Airport, located in Huntsville, Alabama, utilizes HSV as its IATA airport code.

This system of airport codes is vital for ensuring clarity and consistency in air travel logistics. The other codes provided belong to different airports: MBJ is for Sangster International Airport in Jamaica, MKE is for General Mitchell International Airport in Milwaukee, Wisconsin, and MSN is the code for Dane County Regional Airport in Madison, Wisconsin. Understanding these codes is essential for flight attendants and travel personnel, as they often have to communicate specific flight details accurately.