DL has LAX-DXB available through ATL both ways for a good number of dates in January for $667.80. 19,048 MQM at 3.5cpm. Runs through early February, at which point I assume ATL-DXB comes off the calendar. Biz appears to be wide-open on most dates, so could be a good way to use GUCs (especially since the return is blocked at just over 17 hours!)