Kirkwall Airport — Kirkwall, Orkney Islands, United Kingdom

Kirkwall Airport serves the town of Kirkwall on Orkney, the island group off the northern coast of Scotland. At an elevation of about 50 feet, it has two asphalt runways, the longer near 4,690 feet, and acts as the main gateway to the Orkney Islands. Flights link Kirkwall to the Scottish mainland and other northern isles, and the airport is part of the short-hop inter-island network that includes some of the world's shortest scheduled routes. For an island community set in the often stormy waters of the north, reliable air service matters greatly. The KOI code identifies this key northern Scottish airport at the heart of Orkney.