I dunno, Naruto's not really an air element user, not in the same way as an airbender is. He really only has one jutsu that uses wind nature chakra, and it's his big flashy ultimate finisher technique. Aside from that one bijuu-powered all-the-elements-rasenshuriken-overkill-super-barrage, he doesn't really rely on elemental jutsu.
And as da_fox just mentioned, firebending fits Naruto's temperament and fighting style better than airbending does.
And as da_fox just mentioned, firebending fits Naruto's temperament and fighting style better than airbending does.