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.
Plestsy Airport Plestsy Airport (Russian: Плесцы ), also Pero (Russian: Перо — “feather” ), is an airport in Russia located 10 km east of Plesetsk. It is a logistical base for the Plesetsk Cosmodrome launch facility.