AA 6486 then UA 5565 at O'Hare
Detroit → Chicago → Charlottesville
Timetable, Chicago time
17:29AA 6486 from Detroit at the gate
14:10UA 5565 to Charlottesville leaves the gate
20 h 41 apart on the timetable, overnight
UA 5565 leaves 20 h 41 after AA 6486 arrives on the timetable: more than half a day, so not a connection we count.