If you can fly any day of the week, and are going in August, you should easily be able to book $79. each way. Airtran is having a sale now that extends until first week of October. Have you checked their site? Watch for a direct flight (some of the nondirect MCO-PHL Airtran flights have LONG layovers in Atlanta). They should have lots of midweek $79 flights with current sale. Options for you would include: booking Airtran now during their sale, waiting for Southwest ding and/or their later August dates to be released, watching for USAir flights. Southwest Dings (and I love 'em) are not generally released until 5 - 6 weeks beforehand. While they are the "cheapest", I would not wait for them unless I had great flexibility with my trip dates and reservations. I have never paid more than $200 from PHL to MCO and only fly direct. Sometimes, I have to be creative with one way on Airtran and one way on Southwest. One more thing, if it is only you flying than you have much more flexibility but if you are booking for a family (say 5 -6) it may be difficult as some sales are based on a limited amount of seats.