Khrabrovo Airport — Kaliningrad, Russia

Khrabrovo Airport, coded KGD, serves Kaliningrad, capital of Russia's isolated Baltic Sea exclave wedged between Poland and Lithuania with no land connection to the rest of the country. Formerly the German city of Königsberg until the territory changed hands after the Second World War, Kaliningrad retains traces of Prussian architecture alongside its Soviet and post-Soviet development. This geographic separation makes KGD unusually important, since travel to mainland Russia by land requires transit through European Union member states, making air links through Moscow and St. Petersburg a far more practical option for many residents and officials. Aeroflot and other Russian carriers operate the core route network from here. The region's Baltic climate and its amber deposits, among the largest in the world, give Kaliningrad a distinct character within the Russian Federation.