What country does Chelyabinsk Airport and S7 Airlines have in common?
S7 Airlines S7 Airlines, legally PJSC Siberia Airlines (Russian: ПАО «Авиакомпания "Сибирь"» "PАО Aviakompania Sibir"), is an airline headquartered in Ob, Novosibirsk Oblast, Russia, with offices in Moscow. As of 2008, it was Russia's biggest domestic airline. Its main bases are Domodedovo International Airport and Tolmachevo Airport.
Karabash, Chelyabinsk Oblast Karabash (Russian: Карабаш ) is a town in Chelyabinsk Oblast, Russia, located 90 km northwest of Chelyabinsk. Population:  (2010 Census) ; 15,942 (2002 Census);  (1989 Census)