What is the abbreviation for Santiago in the Dominican Republic?

The abbreviation for Santiago in the Dominican Republic is STI. This code is aligned with the International Air Transport Association (IATA) airport codes, where each city or location has a unique three-letter identifier. Santiago, being one of the major cities in the Dominican Republic, is designated as STI to streamline airport operations, ticketing, and baggage handling, thereby enhancing communication within the aviation industry. This clarity and consistency in nomenclature are vital for customer service agents when assisting passengers with travel arrangements, ensuring they accurately identify the intended airport or city.