Hey! I just sent a PM, but immediately after I put together what that's all supposed to mean. Helps that I used to have access to US' employee system when I worked for SkyWest, I guess.

Looking at these numbers, I definitely think PHL is a better gateway. Two reasons for that: First, those are awesome numbers if you're leaving soon (I forgot your dates, but if it's not for a while, there's still time for flights to fill up on any route). Second, if you leave PHX early enough, you can get an earlier flight to FRA. If you get to FRA earlier, you should clear customs sooner, get to the LH check in area sooner, and if you're lucky, get moved up to an earlier FRA-WAW flight (just ask nicely, they should do it). I think that flights out of the hub (obviously FRA is LH's hub) are more open at the beginning of the day, as a rule of thumb (less time for people to connect from other cities).

But most importantly, RELAX. It's a little different flying on a ZED, but just a little. Yes, your priority is lower and you may be holding a paper ticket. But that's really about it. Have you considered a RyanAir confirmed flight? Sometimes you can get them really cheap, you just have to change your European gateway. But if you know you can make that as far as time goes, you're in. Just make sure you're using the same airport in and out, and that you know all of their tricks to avoid fees (no bag checking, keep carry-ons within their limits (including weight) and check in online ahead of time (I think they allow it 2 weeks before departure). There may be others I don't know about. See Warsaw Chopin Airport - Wikipedia, the free encyclopedia for possible cities, maybe BCN or DUB? Or I think US flies into MAN? Wizz Air could also be a possibility.