AA 3815 then AA 2624 at O'Hare
Hartford → Chicago → Phoenix
Timetable, Chicago time
20:15AA 3815 from Hartford at the gate
15:13AA 2624 to Phoenix leaves the gate
18 h 58 apart on the timetable, overnight
AA 2624 leaves 18 h 58 after AA 3815 arrives on the timetable: more than half a day, so not a connection we count.