UA 401 then WN 1749 at Denver
Minneapolis → Denver → Dallas
Timetable, Denver time
12:38UA 401 from Minneapolis at the gate
05:35WN 1749 to Dallas leaves the gate
16 h 57 apart on the timetable, overnight
WN 1749 leaves 16 h 57 after UA 401 arrives on the timetable: more than half a day, so not a connection we count.