Airport Duluth Intl is located in United States near the city of Duluth. The international codes of Duluth Intl airport are ICAO: KDLH and IATA: DLH. Duluth Intl is located at latitude 46.8421 and longitude -92.1936. The elevation above sea level is 1428ft (435m). Local timezone at the airport is UTC/GMT -5:00 hours.