Aeroflot is considering equipping its regional subsidiary Donavia with Airbus A320 aircraft following its integration with Kavminvody Avia.
The Rostov-on-Don-based carrier and KMV Avia are making preparations to form an alliance, operating from two nearby hubs in southern Russia.
At the same time, KMV Avia is scheduled to formally come into the Aeroflot fold in June.
"Both procedures could be completed by the end of August," said Donavia managing director Vitaly Golovin.
"Aeroflot's corporate property department is actively working on the formula of integrating KMV Avia and its interaction with us."
He said Aeroflot also intends to modernise and unify the fleet for its augmented southern operation using A320 family aircraft.
Donavia has seven leased Boeing 737-500s and three Boeing-400s. "Leases on two jets will expire in the autumn and on the other two in the spring," said Golovin.
"We'll not extend them or replace with modern 737 variants. We've already started shopping around for A320s."
KMV Avia plans to begin phasing out its nine Tupolev Tu-154s while retaining a pair of Tu-204s. It is understood to be able to use A320s jointly with Donavia within the framework of their combined operation.