Delta, American, and Alaska Airlines have round-trip flights from Dallas (DFW/DAL) to Los Angeles (LAX) starting at $101, NONSTOP. $50-$65 each-way. Flights February to mid-May, mostly Tuesdays or Wednesdays. Origin/Destination is reversible.
Note: Fare allows for a free carry-on, but seat selection has a fee on Delta and American. You can avoid seat selection fee by accepting the random seat assignment at the gate.
Note: Alaska Airlines flies out of “DAL”, Other airlines depart from “DFW”.