Roshchino International Airport — Tyumen, Russia

Serving the oil-and-gas capital of West Siberia, TJM connects Tyumen to Moscow, St. Petersburg, and a wide network of cities across Russia's vast interior. Tyumen itself claims the title of Siberia's oldest Russian settlement, founded in the late 16th century, though its modern identity rests on the petroleum wealth of the surrounding region rather than its historic streets. Roshchino has been rebuilt and expanded in stages since the Soviet period, gaining a new terminal and modernized runway capable of handling wide-body aircraft as traffic from energy-sector business travel grew. Harsh continental winters test the airport's de-icing and cold-weather operations every year, a routine challenge across much of Siberian aviation. Beyond business flights tied to nearby oil and gas fields, the airport also serves as a departure point for rotational workers headed to remote northern installations.