I can't give you a definite answer on that, you will have to check with the air force to find a definite answer..

However, I believe you could do it before you reach the cut off age.  Since you already have a degree, you could take the AFOQT and then apply for a pilots slot.  If you recieve one you would then go to OTS, and then on to pilot training.  I know that to become an officer you have to be commissoned before your 35th birthday, which is no problem.  However, to become a pilot, the age limits change a bit, but like I said, I don't know for sure, so you're best option now would be to contact a recruiter.

Hope this helps,