They don't fly out of Philadelphia, though they do fly out of Baltimore (2 hours south of here).

didn't know that. i figured they went to all the major cities by now.....

Nah...there are still quite a few cities that they don't hit. But in many cases, you can access a nearby airport of a large city (e.g. BWI for Philadelphia or Long Island/Islip for NYC).

As long as US Airways is in existance, we probably won't see Southwest here.