Cibao International Airport (Spanish: Aeropuerto Internacional del Cibao) (IATA: STI, ICAO: MDST), also known as Santiago Airport, is located in Santiago de los Caballeros, Dominican Republic's second-largest city. It is the country's third-busiest airport by passenger traffic and aircraft movements, after Punta Cana International Airport and Las Américas International Airport. Since its inauguration, in terms of passenger traffic, Cibao International has been projected to become one of the busiest airports in the country. Presently it has become the third-busiest airport in the Dominican Republic, only being surpassed by the airports of Punta Cana and Santo Domingo. The airport served more than 1,900,000 passengers in 2021.

The airport is located 15 kilometers (9.3 mi) southeast of Santiago City's center.

The air terminal mainly serves Dominicans residing in the United States, the Turks and Caicos Islands, and Puerto Rico, as well as Haitians residing in the Cibao Region. Recently many tourists and missionary workers are using Cibao International as a gateway to the Dominican Republic.

JetBlue is the primary international operator, with up to twenty daily flights to New York–JFK, Newark, and Boston. The airline replaced flights from American Airlines, and some slots from other airlines flying to the United States of America.