Kurchatov Chelyabinsk International Airport — Chelyabinsk, Russia

Chelyabinsk Airport, officially bearing the name of nuclear physicist Igor Kurchatov in recognition of the Ural region's central role in the Soviet atomic weapons program, serves a heavily industrial city long associated with metallurgy, machine building, and, more infamously, the massive meteor airburst that shattered windows and injured over a thousand people across the city in February 2013. CEK connects Chelyabinsk, situated just east of the Ural Mountains along the historic boundary between Europe and Asia, to Moscow and other Russian cities, alongside a smaller roster of international routes reflecting the city's industrial trade ties. The surrounding oblast hosts sensitive nuclear facilities, including the Mayak plant, whose history includes one of the Soviet era's worst radioactive contamination incidents. Despite that heavy industrial and sometimes fraught legacy, the airport itself functions as a fairly standard regional Russian hub, handling passenger and cargo traffic for a metropolitan area of well over a million people while its runway accommodates a broad range of narrow-body aircraft.