What about AA in MCE if you're only interested in legroom?

Also, if you see Avios availability in CW ex-LAX, book the ticket now and don't worry about the saving in the sale! Alternatively there might be a saving to be had by routing back home via Europe (CPH is looking cheap at the moment) and paying for the CW ticket.

If you are booking economy to DFW and WTP on the return leg of an open jaw or multi-flight, you will need to make a phone booking.