UA 3566 then DL 1627 at Detroit
Chicago O'Hare → Detroit → Memphis
Timetable, Detroit time
09:26UA 3566 from Chicago O'Hare at the gate
08:27DL 1627 to Memphis leaves the gate
23 h 01 apart on the timetable, overnight
DL 1627 leaves 23 h 01 after UA 3566 arrives on the timetable: more than half a day, so not a connection we count.