Here are some estimated load factors for the three carriers at Dallas Love Field for January 2016. Much like how I come up with the DFW Foreign Carrier estimates, I pulled publicly available traffic data and calculated this against seat count totals that I was able to dig up.

I'm not proclaiming these to be 100% accurate, but I think they are reasonably close and give us a good idea of the overall load factors. These are just raw numbers and don't take into account how much was paid for each seat, cargo, or yield in general.