To answer my own question earlier, yes Ukraine still have active airports and active planes still flying. This article talks about how baffling it is that the Russian have not gain air superiority yet, and they don't seem to be willing to invest the equipment to do so. That just seems strange. Are the Russian's holding back aircraft in fear of a NATO attack? What other reason would there be for Russia committing such a small amount of their air force to the conflict?
What happened to Russia's Air Force? U.S. officials, experts stumped | Reuters