This varies from branch to branch as well. I lived off base as an e-3 within 1.5 years of being active duty. Also, Af depends on what job you have if you get deployed. AF sends cops, medical, special forces and pilots. Most AF jobs don't deploy.
This also depends on your career and branch. Again most AF jobs you won't deploy. Like I said earlier, this is mostly business like with a lot more computer, admin, IT type jobs. There are mechanical and more but if you score high enough you can choose what you want to do and sign up with that as a guaranteed job. You pretty much won't deploy AF and they will work with you for your schooling. Once you get trained in what ever job and get to your duty location, talk with your sup and or first shirt and tell them you want to continue with school. They will even give you time off for this. If you take a class that is during work hours, they will allow you to go to the class. I know in my field, they pushed and preached furthering our education. I'm sure all branches do, but I cannot speak for them.
If you finish your degree and get to OTS, become an officer..I know you will make 2k a month, easily.