Cibao International Airport

Cibao International Airport carries the IATA code STI — the three letters printed on boarding passes and baggage tags — and the ICAO code MDST, used in flight plans and by air traffic control. It serves Santiago, Dominican Republic.

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.