Which airport is designated by the code KFSM?

The airport designated by the code KFSM is indeed Fort Smith. The International Civil Aviation Organization (ICAO) assigns a unique four-letter alphanumeric code to each airport, which is used for various purposes including air traffic control and airline operations. The designation KFSM breaks down as follows: the 'K' prefix typically designates airports in the United States, while 'FSM' specifically identifies Fort Smith Regional Airport located in Fort Smith, Arkansas.

Fort Smith is well-known for its regional air service and serves as an important transportation hub within the region. Understanding airport codes is crucial for navigation and communication in aviation, and recognizing KFSM as Fort Smith underscores how codes encapsulate geographical identifiers within a structured format.