UA 330 then WN 1749 at Denver
Los Angeles → Denver → Dallas
Timetable, Denver time
08:26UA 330 from Los Angeles at the gate
05:35WN 1749 to Dallas leaves the gate
21 h 09 apart on the timetable, overnight
WN 1749 leaves 21 h 09 after UA 330 arrives on the timetable: more than half a day, so not a connection we count.