Flyers have no use for visnovsky, let alone the willingness to trade anything of importance for him. I would not even trade our 1st for him at this time. He's simply not the defenseman we need, and if we're putting together a package including important parts like Simmonds, Jvr, read or a 1st etc. they're going to be able to get someone who fills a hole a lot better than visnovsky does.
I think I can pretty much guarantee the flyers have no interest here.