Sibaviatrans (IATA: 5M, ICAO: SIB) was a Russian regional airline that operated domestic passenger and cargo flights, primarily serving routes across Siberia and other parts of Russia. The airline operated under the callsign SIBAVIA and was based in Krasnoyarsk, Russia. The carrier focused on connecting remote and underserved communities in the Siberian region, using a fleet suited to shorter and medium-haul routes. Like many small Russian regional carriers, it faced significant operational and financial challenges over the years. Sibaviatrans ceased operations, and its services and routes were eventually discontinued. The airline was one of several smaller Russian carriers that struggled to sustain operations amid competitive pressures and regulatory changes in the Russian aviation market.