AA 6486 then DL 1578 at O'Hare
Detroit → Chicago → Minneapolis
Timetable, Chicago time
17:29AA 6486 from Detroit at the gate
09:59DL 1578 to Minneapolis leaves the gate
16 h 30 apart on the timetable, overnight
DL 1578 leaves 16 h 30 after AA 6486 arrives on the timetable: more than half a day, so not a connection we count.