The US has over 4000 fighter jets and the single most advanced technology in the field. Excellent missile systems and rapemachines like the F-22.
Furthermore there's still stealth bombers like the B-2 and the upcoming stealth complement to that and the F-22, being the F-35.
US air dominance would be there without question. There is no way any country in the world at this moment could resist a US air invasion.
Just for perspective, while Iraq sucked, it had the 4th largest airforce in the world. It was decimated with very minimal losses in just a couple weeks at most.
I found this gem in a 4chan /b/ thread about Chinese military hardware.