The best (and only) weekend I can see on this one is DEC6/7 but you get enough time to pop into the the city for the day before your redeye back home to DFW. Also lot’s of open weekdays OCT, NOV etc. Here are the numbers:
5,740MQMs at 5.1CPM
Bookable on Delta.com
DM yields 12,916 Skymiles per CWSI.net!
BTW, if you are in DFW, there is WIDE OPEN space to SXM at about this same price. You will have to overnight on the way down, at SXM, and on the way back so 3 hotel nights can make it a costly run unless you have a ton of hotel points. Just keep it in mind.