Long story short, I hate PHL. Especially the fact that UA shares a terminal with SW, so the security line is always miles long. Seriously, a couple months ago, an FTer gave me a bit of advice about going in through terminal C to avoid D's security line, and it was the best advice I've ever been given.

So to my point, I'm willing to fly out of PHL, Allentown, Harrisburg, or BWI if necessary, which of those 4 is going to provide me the cheapest UA options? I find that UA ex-PHL is prohibitively expensive unless I book at 11:23pm on the night of blue moons... This is both for actual travel reasons and for MR reasons. I'm determined to make 1P this year, and I'll have to do it on segments, so cost is a concern here. I want to get started on this now rather than in December, so I thought I'd ask FT if there is a better PHL region airport than PHL.