Nanki–Shirahama Airport is located in a hilly area about 1. 5 kilometers southeast of the center of Shirahama Town, and was established by the Wakayama Prefectural government. It is the only airport in Wakayama prefecture and the southernmost airport in Honshu. The airport opened in April 1968 with a 1200 meter runway. Flights connecting Tokyo, Osaka (Itami) and Nagoya were opened, but subsequently the Osaka and Nagoya flights withdrew. A 1800 meter runway on the eastern adjacent land was comple... Nanki–Shirahama Airport is located in a hilly area about 1. 5 kilometers southeast of the center of Shirahama Town, and was established by the Wakayama Prefectural government. It is the only airport in Wakayama prefecture and the southernmost airport in Honshu. The airport opened in April 1968 with a 1200 meter runway. Flights connecting Tokyo, Osaka (Itami) and Nagoya were opened, but subsequently the Osaka and Nagoya flights withdrew. A 1800 meter runway on the eastern adjacent land was completed on March 9, 1996 with the aim of upgrading the capability of the airport to handle jet aircraft. This runway was later was extended to 2000 meters.