I have this same question and can't find a good answer. I've scoured the priceline site and can't find any mention of a minimum driver age. I found some other websites that said you only need to be 21 to rent, but I'm skeptical of that because I don't see it anywhere on the priceline site. I am a member of USAA and their website has codes through Avis, Budget, and Hertz to waive the young driver fee, but can I add this code to a priceline rental??