Des Moines International Airport

Des Moines International Airport carries the IATA code DSM — the three letters printed on boarding passes and baggage tags — and the ICAO code KDSM, used in flight plans and by air traffic control. It serves Des Moines, United States.

IATA codes are assigned by the International Air Transport Association for passenger-facing use; the four-letter ICAO code encodes region and country and belongs to the operational side of aviation.