Last minute rescue bid to prevent Russia's second largest airline going bankrupt.
Ransom demanded for two UTair staff seized in ambush on UN contract work.
Flights relaunched to and from Europe stopping over at Tolmachevo Airport, the largest Russian air hub east of the Urals.
Siberian Natalia Fileva, 55, co-owner of S7 airline, perished alongside her father in private plane tragedy in Germany.