United Airlines will drop its 2x daily service from DFW to Los Angeles (LAX) as of March 31 (last flights on March 30.) This route is currently operated by SkyWest on Embraer E175 equipment under the UA Express banner.
Not really surprising. It’s a really crowded and competitive market. Delta, American, Southwest, Alaska, and Spirit all fly it, and in the cases of Southwest and American it’s hub to hub.