For anyone having experience switching from Army Infantry to Air Force, how hard was the switch?

As an Infantryman, you may have significant problem getting the Zoomies to take you in - their standard response is, "You're too military for us, especially combat arms folks." BUT - only a Recruiter can help you - go ask - then come back here and give us all up-to-date info!!

I’ll add my voice to those saying talk to an Air Force recruiter. Consider Active Duty, Reserve, and Air Guard. Another choice you could consider is complete your Army contract, and then use GI bill to get bachelors degree while taking AFROTC.

Yes, the AF and Space Force are particular about whom they recruit. It’s worth a try. Recruiters have restrictions on the number of prior service people they can accept.

I have served with a couple Army to Air Force converts in my career, it is certainly possible. That being said, apply, you have nothing to lose.