Aeroflot is planning to increase its number of flights to St Petersburg from Moscow from seven to nine a day.
The decision to increase the frequency of flights was taken after unprecedented demand for the route, with half a million passengers flying between the two cities on the airline during 2008.
This was over a fifth (21 percent) more passengers than were carried in 2007.
Aeroflot said its decision was also influenced by the need to provide high-quality air transport and the need "to gain a competitive edge of the Russian carriers in the St Petersburg hub".
The carrier, which is based at Moscow’s Sheremetyevo International Airport, is Russia’s largest airline, transporting approximately ten million passengers every year.
Accounting for nearly half (45 percent) of Russia’s scheduled international traffic, Aeroflot flies to 95 destinations in 48 countries.
The carrier recently announced that it would resume regular flights to Dresden from the capital on July 3rd.
It will be the seventh German city connected to Aeroflot’s Moscow network.