What is "airunion"

AiRUnion was a Russian airline alliance. It was the first airline alliance ever established in Russia. Member airlines and their affiliates enjoyed a high degree of co-operation in scheduling, ticketing, code sharing, flight transfer operations, frequent flyer program benefits, shared airport lounges, reducing costs, and sharing best practices.

The airline and member carriers have since gone bankrupt in 2008. With government sponsorship, the alliance might become resurrected as Rossiya.