In the Orkney archipelago, off the northern coast of Scotland, two small islands sit 1.7 miles apart across a stretch of cold North Sea water. The larger of the two, Westray, has about 600 residents. The smaller, Papa Westray, has fewer than 100. The Scottish regional airline Loganair operates a scheduled commercial flight between them. [...] The post The shortest commercial flight in the world is between two islands in Scotland’s Orkney archipelago — a flight covering just 2.7 kilometers (1.7 m