Stumbled upon this one just now - November 18th ORD-LAX, same day turn, for $80.20 round trip. I could only find the one day, but maybe there are more?
Not an IMMEDIATE turn, but if you have Admirals Club access, or want to spend a few hours in LA, this could be a good November trip...
Just checked the reverse, and LAX-ORD seems to also work for same day turns on 11/3, 11/11, 11/17, and 11/18.