 Omsk is served by the Tsentralny Airport, which offers access to domestic and international (primarily, German and Kazakh) destinations, making the city an important aviation hub for Siberia and the Russian Far East.It is about 450 km north of Kazakhstan's capital Nur-Sultan, and 600 km west of Siberia's largest city Novosibirsk.Omsk has a humid continental climate Dfb characterized by dramatic swings of weather.