AA 3815 then UA 4547 at O'Hare
Hartford → Chicago → Birmingham (Alabama)
Timetable, Chicago time
20:15AA 3815 from Hartford at the gate
15:41UA 4547 to Birmingham (Alabama) leaves the gate
19 h 26 apart on the timetable, overnight
UA 4547 leaves 19 h 26 after AA 3815 arrives on the timetable: more than half a day, so not a connection we count.