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Bratsk Airport (Russian: Аэропорт Братск) (IATA: BTK, ICAO: UIBB) is an airport in Irkutsk Oblast, Russia located 8 kilometres (5 mi) north of Bratsk. It is a mixed use airfield, providing 32 parking spaces for medium-sized airliners. Bratsk airport serves as a diversion airport on Polar route 2. The airport is described as an international airport, although currently only serves internal flights in Russia.