AA 3815 then AA 3107 at O'Hare
Hartford → Chicago → Boston
Timetable, Chicago time
20:15AA 3815 from Hartford at the gate
19:03AA 3107 to Boston leaves the gate
22 h 48 apart on the timetable, overnight
AA 3107 leaves 22 h 48 after AA 3815 arrives on the timetable: more than half a day, so not a connection we count.