Ellison Onizuka Kona International Airport at Keāhole is the busiest airport on the Island of Hawaiʻi. It is located in Kalaoa CDP, Hawaiʻi County, Hawaiʻi, United States, near the town of Kailua-Kona. The airport serves leeward Hawaiʻi island, including the resorts of the North Kona and South Kohala districts. It is one of two international airports serving Hawaiʻi i…Ellison Onizuka Kona International Airport at Keāhole is the busiest airport on the Island of Hawaiʻi. It is located in Kalaoa CDP, Hawaiʻi County, Hawaiʻi, United States, near the town of Kailua-Kona. The airport serves leeward Hawaiʻi island, including the resorts of the North Kona and South Kohala districts. It is one of two international airports serving Hawaiʻi island, the other being Hilo International Airport on the windward side.