Enkor (full name is Joint Stock Company (JSC) Enkor) was an airline based in Moscow, Russia. It operated scheduled international passenger services and provided technical aircraft maintenance. Its main bases were Domodedovo International Airport, Moscow, Ulan Ude Airport (UUD) and Chelyabinsk Airport (CEK). In 2004 the airline merged with S7 which inherited their fleet of TU-154M aircraft. The TU-134 and Yakovlev Yak-42 aircraft were retired and the TU-154B2 was sold to Kolavia.