Fukuoka Airport — Fukuoka, Japan

Fukuoka Airport, coded FUK, occupies an unusually central location for a major airport, positioned so close to downtown that the city's subway reaches the terminal in only a couple of stops from the main train station. For many years, FUK ranked among the world's busiest single-runway airports, a testament to how tightly its schedule had to run to serve Kyushu's largest city. The airport shares its site with a Japan Air Self-Defense Force base, a legacy of its origins as a wartime military airfield. Fukuoka itself has grown into a major business and cultural center in southern Japan, and FUK connects the city to destinations across East Asia as well as the rest of Japan. A second runway project has aimed to relieve the long-standing capacity pressure at the airfield.