Sochi Air Charter is a Russian charter airline operating under IATA code Q3 and ICAO code QER, with the radio callsign 'Russian Doll.' The carrier is based in Sochi, the Black Sea resort city in southern Russia, and primarily serves leisure and charter travel markets. The airline focuses on supplemental and charter operations, catering to tourist and seasonal travel demand typical of the Sochi region. As a smaller charter operator, it serves a niche market rather than competing directly with major Russian scheduled carriers. Limited public information is available about the airline's full operational history and current status, which is common for smaller regional charter operators in Russia.