AA 3815 then AA 4663 at O'Hare
Hartford → Chicago → Memphis
Timetable, Chicago time
20:15AA 3815 from Hartford at the gate
16:00AA 4663 to Memphis leaves the gate
19 h 45 apart on the timetable, overnight
AA 4663 leaves 19 h 45 after AA 3815 arrives on the timetable: more than half a day, so not a connection we count.