Which airport does XXX operate in?
S7 Airlines
PJSC Siberia Airlines (Russian: ПАО ``Авиакомпания ``Сибирь``'' ''PАО Aviakompania Sibir``), operating as S7 Airlines, is an airline headquartered in 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.
Domodedovo International Airport Tolmachevo Airport