The
Prince of the
Power of the Air

is,

Satan;
the devil; the accuser;
the arch enemy of good;
the adversary;
the serpent.
And you hath He quickened
who were dead in trespasses and sins;
Wherein in time past
ye walked according to the
course of this world,
according to the
prince of the power of the air,
the spirit that now worketh
in the children
of disobedience...

Ephesians
2:1-2