Omsk Central Airport — Omsk, Russia

Few major Russian cities have an airport situated as close to downtown as Omsk, where OMS sits practically within the urban footprint along the Irtysh River. That proximity, convenient for travelers but constraining for expansion, has fueled decades of discussion about relocating operations to a new site at Fedorovka, a project repeatedly delayed by funding gaps and shifting priorities. Omsk itself ranks among Siberia's largest industrial centers, with a legacy in oil refining, machine building, and defense manufacturing dating back to its role as an evacuation destination for Soviet factories during the Second World War. The airport handles a steady mix of domestic flights linking Omsk to Moscow and other Siberian hubs, along with a smaller number of routes toward Central Asia. Its single runway and aging Soviet-era terminal reflect a facility that has outgrown its footprint far faster than any replacement has materialized.