AA 9866 then AA 3365 at O'Hare
Marquette → Chicago → Bismarck
Timetable, Chicago time
10:30AA 9866 from Marquette at the gate
09:53AA 3365 to Bismarck leaves the gate
23 h 23 apart on the timetable, overnight
AA 3365 leaves 23 h 23 after AA 9866 arrives on the timetable: more than half a day, so not a connection we count.