UA 1803 then DL 420 at LAX
Las Vegas → Los Angeles → Dallas-Fort Worth
Timetable, Los Angeles time
17:25UA 1803 from Las Vegas at the gate
17:00DL 420 to Dallas-Fort Worth leaves the gate
23 h 35 apart on the timetable, overnight
DL 420 leaves 23 h 35 after UA 1803 arrives on the timetable: more than half a day, so not a connection we count.