AA 4103 then DL 5101 at Detroit
Chicago O'Hare → Detroit → Louisville
Timetable, Detroit time
09:25AA 4103 from Chicago O'Hare at the gate
08:29DL 5101 to Louisville leaves the gate
23 h 04 apart on the timetable, overnight
DL 5101 leaves 23 h 04 after AA 4103 arrives on the timetable: more than half a day, so not a connection we count.