Thanks Skiwee. The Air Tran price when all taxes are figured in is exactly the same as SWA. A coincidence,hmmm. Anyway, I already paid for the SWA flight earlier today and the times are almost identical.
The other stange thing is AirTran RAISED the price out of PHL. The cost is now $271 each way. When I called Airtran last week the agent said there really were VERY few people booked on any of those flights. I wonder why!!! BWI would be a lot cheaper for my younger college son but it's further than Philly and his schedule is pretty tight since he isn't off then and it's near the end of his semester. I'll talk to him tomorrow. AirTran really should get lower out of PHL. Even the agent said she wouldn't book at those prices even with her discount.