UA 4744 then WN 1749 at Denver
Colorado Springs → Denver → Dallas
Timetable, Denver time
12:25UA 4744 from Colorado Springs at the gate
06:05WN 1749 to Dallas leaves the gate
17 h 40 apart on the timetable, overnight
WN 1749 leaves 17 h 40 after UA 4744 arrives on the timetable: more than half a day, so not a connection we count.