Claudia, how did you learn about the price drop? Have you been checking fares for your flights periodically, or did you get a notification from AirTran (or a third-party service) that they were having a fare sale?
I'm shopping for flights from Boston in late May, and it puzzles me that fares have been rising for flights that still show a lot of unsold seats. One AirTran flight has nearly doubled to $205 one-way (+$20 for a bag) in the last couple of weeks, yet half the seats show as available. Based on experience in prior years at this time, I've been holding out for a fare sale, but I'm getting nervous.