Kazan International Airport — Kazan, Russia

KZN serves Kazan, capital of the Republic of Tatarstan and a city that has long positioned itself as a meeting point between Russian and Tatar, and more broadly Orthodox Christian and Muslim, cultures within the Russian Federation. That dual identity is visible right at the Kazan Kremlin, a UNESCO-listed fortress complex where an Orthodox cathedral and the striking Qol Sharif Mosque stand within the same walls. The airport underwent substantial modernization ahead of the 2013 Summer Universiade, a major international student sporting event Kazan hosted, and again before serving as one of the host cities for matches during Russia's 2018 FIFA World Cup. Those events accelerated broader infrastructure investment across the city, reinforcing Kazan's status as one of Russia's most prominent regional centers outside Moscow and St. Petersburg. Sitting along the Volga River, KZN today handles a mix of domestic Russian routes and international connections.