Russia is not open yet for international visitors, unless they travel for medical purposes or to support a disabled relative.
It's possible that air companies will sell tickets for future dates hoping that admission rules will be relaxed by then, but nobody can be sure when that would happen.
If you hold Russian citizenship you can enter the country all right. Leaving may be tricky but already possible, to reunite with your family. You may need to self-quarantine for two weeks. You may need to prove residency in proximity of a city where the flight is going.
The special flights you are talking about are repatriation flights.