European!
I'm not exactly sure if Air Tran flies into Baltimore or not, but if it one of their location's to which they fly... Y nix seichas a big sale going on. Usually, though, you would need to be one of the 1st ones to find out about it in order to be able to get an awesome deal, like the one they advertise if you'd want a nonstop flight.
I also, just got a newsletter from ClarkHoward.com or whatever his website address is (just go there and click under travel), that Air Tran just cut prices on outbound flights out of ATL. which is pretty much unusual these days, but I didn't really read into it, since where I need to fly to they isn't one of their location's, and the nearest airport doesn't make much sense due to gas prices and a few other factors. Hope this may help you :-)! Good luck!
Irina