AA 3815 then AA 2554 at O'Hare
Hartford → Chicago → Phoenix
Timetable, Chicago time
20:15AA 3815 from Hartford at the gate
18:59AA 2554 to Phoenix leaves the gate
22 h 44 apart on the timetable, overnight
AA 2554 leaves 22 h 44 after AA 3815 arrives on the timetable: more than half a day, so not a connection we count.