UA 3566 then DL 5101 at Detroit
Chicago O'Hare → Detroit → Birmingham (Alabama)
Timetable, Detroit time
09:26UA 3566 from Chicago O'Hare at the gate
08:40DL 5101 to Birmingham (Alabama) leaves the gate
23 h 14 apart on the timetable, overnight
DL 5101 leaves 23 h 14 after UA 3566 arrives on the timetable: more than half a day, so not a connection we count.