AA 9866 then UA 2389 at O'Hare
Marquette → Chicago → Albuquerque
Timetable, Chicago time
10:30AA 9866 from Marquette at the gate
09:25UA 2389 to Albuquerque leaves the gate
22 h 55 apart on the timetable, overnight
UA 2389 leaves 22 h 55 after AA 9866 arrives on the timetable: more than half a day, so not a connection we count.