Denver to Los Angeles or Vice Versa $68 RT Nonstop on United or American Airlines (BE) (travel Oct-Feb 2018)

this is the lowest I’ve seen besides on spirit or frontier.
Both United and American Airlines have round trip airfares travelling to and from Denver (DEN) and Los Angeles (LAX) for $68 including taxes and fees. This is nonstop service. This is also basic economy on both airlines.
Travel Availability:
Departs DEN: Oct 11, 12, 14, 17, 18, 24, 25, 28, 30, 31; Nov 1, 7, 8, 24, 29; Dec 6; Jan 10, 17, 20, 23, 24, 27, 30, 31; Feb 6, 7
Departs LAX: Oct 10, 11, 17, 18, 21, 24, 25, 31; Nov 1, 4, 7, 8; Dec 5, 6; Jan 10, 16, 17, 19, 20, 23, 24, 30, 31; Feb 6, 7
Returns: wide availability
Use those dates and plug into Priceline , Orbitz , CheapOAir or Expedia to see which airline is flying on your choice of dates.