Sinop Airport (IATA: NOP, ICAO: LTCM) is an airport in Sinop, in the Black Sea Region of Turkey. The airport is closed from 01/01/2013 to 09/30/2013 Turkish Airlines has - when the airport is open - daily flights from Istanbul. Tower and approach frequency is 126.300 MHz. The old runway of the airport was previously used by the US military base in Sinop.