AA 6486 then AA 2612 at O'Hare
Detroit → Chicago → Houston
Timetable, Chicago time
17:29AA 6486 from Detroit at the gate
13:36AA 2612 to Houston leaves the gate
20 h 07 apart on the timetable, overnight
AA 2612 leaves 20 h 07 after AA 6486 arrives on the timetable: more than half a day, so not a connection we count.