I just flew from PHL to ORL, and, checked my LLBean rolling duffle. The check in attendant told me my bag was too Big! I was very confused, as, I travel with this bag all over the world. Another agent measured it, and, said it was ok. Later, after, going through security and waiting at the assigned terminal gate, this same agent, "found" me, and announced she was insisting my bag was oversized, and pulling it from the plane, and getting a supervisor to remeasure it. I watched, stunned, from the terminal window, as she and another woman marched out on the tarmack towards the plane. They appeared at the check in gate, (we were beginning to board), and, told me my bag was too big ..by about an inch..and, I had to pay $49.00!!
So, my message, here, is be aware of size allowance on Air TRAN.