How long will I be in the Air Force DEP before I find out my ship date?

It also depends on your recruiter and wether or not he/she drags their feet on it. I joined the Air Force back in Dec 03 and i signed up on Nov 03. You can also request to leave as soon as possible! One lesson I have learned while being in the Air Force is you are the only one who will make your career! Always push forward.