Russia's biggest domestic airline is located how many km north of Chelyabinsk?
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.
Nyazepetrovsk Nyazepetrovsk (Russian: Нязепетро́вск ) is a town and the administrative center of Nyazepetrovsky District in Chelyabinsk Oblast, Russia, located on the Nyazya River (a tributary of the Ufa), 150 km northwest of Chelyabinsk, the administrative center of the oblast. Population:  (2010 Census) ;  (2002 Census) ;  (1989 Census)