Which airline that has Chelyabinsk Airport as a secondary hub is based in Yekaterinburg, Russia?
Chelyabinsk Airport: Chelyabinsk Airport (IATA: CEK, ICAO: USCC) is an airport in Russia located 18 km north of Chelyabinsk. Ural Airlines: Ural Airlines (Russian: Ура́льские авиали́нии , "Ural’skiye avialinii") is an airline based in Yekaterinburg, Russia, operates scheduled and chartered domestic and international flights out of Koltsovo International Airport.
i don't know