Graduate school applicant visiting a department he has applied to - advantageous?

I've applied to several graduate schools in the US for a physics PhD. As I currently have some free time, I'm willing to travel around and visit graduate schools that I've applied to. My current research advisor (who is also one of my letter writers) can possibly establish contact between me and some of the people I have expressed interest in at different schools. My question is that whether in your opinion this is something that can actually boost my chances of getting admitted (provided a meeting with a person of interest goes well). Could pursuing this plan be advantageous?