Both Southwest and Air Tran have had their schedule open up to August 9, 2013 for the past two week. The non-stop flights on Southwest were available for $100, but the price has increased slightly to $110 per person which is still a good deal since you don't pay for bags.
Next window for SW opens on Feb 4th for the rest of August. We have AoA booked starting the 18th of Aug. and can't wait to jump on the air. We got burned on the return for our trip in March so we would really like to make this a cheap trip.