AA 9866 then AA 1691 at O'Hare
Marquette → Chicago → Newark
Timetable, Chicago time
10:30AA 9866 from Marquette at the gate
10:05AA 1691 to Newark leaves the gate
23 h 35 apart on the timetable, overnight
AA 1691 leaves 23 h 35 after AA 9866 arrives on the timetable: more than half a day, so not a connection we count.