Are you one of those people who believes Superman really just has some form of telekinesis?
Not necessarily, just in a hypothetical real world setting, to be able to move things with the mind and not physical work implies a whole host of "powers" to be attained. All of the kinetic powers(aero, hydro,pyro, ferro, etc), flight, cellular/molecular/atomic manipulates, super strength/speed/durability..theoretically teleportation but definitely wormhole/gravity manipulation.
This is all to say I can't speak for or against DCs methodology that enables flight, (levitation really, flight is actually fairly simple to achieve for just about anything)..but if there were a real world analogue to Superman, most of his traditional powerset(strength/flight/speed) could be attributed to some form of specialized and only self affecting telekinesis.