Novosibirsk Tolmachevo Airport (OVB/UNNT) is the primary international airport serving Novosibirsk, the third-largest city in Russia and the administrative center of Siberia. It is the busiest airport in the Asian part of Russia and serves as a major transit and regional hub for flights across Siberia and Central Asia. The airport handles a substantial volume of both domestic and international traffic, with connections to destinations throughout Russia, Europe, Asia, and the Middle East. S7 Airlines (Siberia Airlines) has historically maintained a significant presence here, and the airport serves as a key node in Russia's aviation network. Tolmachevo has undergone significant modernization efforts, including terminal expansions and infrastructure upgrades, to accommodate growing passenger volumes and improve service quality for travelers transiting through this strategically located Siberian gateway.