Sibir Airlines (Novosibirsk) has been rebranded as S7 Airlines (S7/Novosibirsk). It has announced plans to establish a new base in Chelyabinsk among other new routes: Chelyabinsk-Adler/Sochi: weekly Tu-154 service starting on June 4 Chelyabinsk-Anapa: weekly Tu-154 service starting on June 5 Chelyabinsk-Dushanbe: 2x weekly B737-500 service starting on May 6 Chelyabinsk-Khudzhand: weekly B737-500 service starting on May 8 Chelyabinsk-St. Petersburg: weekly B737-500 service starting on June 5 Chelyabinsk-Yerevan: weekly B737-500 service starting on May 5 Moscow Domodedovo-Osh: weekly Tu-154 service (already launched) Moscow Domodedovo-Pavlodar: 2x weekly Tu-154 service (already launched) Moscow Domodedovo-Perm: 6x weekly B737-500 service (already launched) Moscow Domodedovo-Urgench: weekly Tu-154 starting on May 22 S7 Airlines has however retired its two Tu-204s.