- Kona International Airport (KOA), also known as Kona Airport or Kona Coast Airport, is the main airport serving the western region of the Big Island of Hawaii, United States. It is located in Keahole, approximately 7 miles northwest of Kailua-Kona. Kona Airport is a major gateway for tourism in Hawaii and offers both domestic and international flights. The airport has various amenities, including car rental services, dining options, and shops.