AA 9866 then AA 2080 at O'Hare
Marquette → Chicago → Charlotte
Timetable, Chicago time
10:30AA 9866 from Marquette at the gate
09:02AA 2080 to Charlotte leaves the gate
22 h 32 apart on the timetable, overnight
AA 2080 leaves 22 h 32 after AA 9866 arrives on the timetable: more than half a day, so not a connection we count.