This one is unusual in that it is best for only the next 3 weeks (now through 9/26), but includes every day this week. Same day turns possible. Some scattered Tuesday/Wednesday flights available in October, then it appears to open up wider after Thanksgiving, including one two-day stay for $199 RT AI using a direct flight one-way. Fare is also available in 2013. PHL offers the best cpm for those receiving 500-mile minimums, and also appears to be the easiest to find connections through, though connections at any of the four US connecting points (PHL/PHX/DCA/CLT) are pretty close. Books into R, one of the better US MRs I've seen in a while.
If you can fly in the next 2 days or so, use the following promo and connect through DCA both ways to get this down a little further.
AA is around $235-245. I booked one, but more as a weekend trip to SAN as I'm intentionally staying the night. It is very good if you can get the LAX connection both ways (I did). If they go down now after I booked I won't be very happy .