WN 1124 then UA 4749 at Detroit
Denver → Detroit → Chicago O'Hare
Timetable, Detroit time
16:00WN 1124 from Denver at the gate
10:48UA 4749 to Chicago O'Hare leaves the gate
18 h 48 apart on the timetable, overnight
UA 4749 leaves 18 h 48 after WN 1124 arrives on the timetable: more than half a day, so not a connection we count.