S7 Airlines is a full service airline operating in Russia, and is based in Domodedovo Intl Airport, Moscow. It operates a combination of short-haul narrowbody aircraft and long-haul wide-body aircraft, including variants of the A320 and B767, with an average fleet age of 10 years. S7's frequent flier program is S7 Priority, and it is a member of the Oneworld alliance. It also operates extensive code-share arrangements outside of Oneworld, however current arrangements with Ukrainian International Airlines have been suspended.