DL 5122 then DL 2822 at Detroit
Louisville → Detroit → St Louis
Timetable, Detroit time
16:44DL 5122 from Louisville at the gate
16:30DL 2822 to St Louis leaves the gate
23 h 46 apart on the timetable, overnight
DL 2822 leaves 23 h 46 after DL 5122 arrives on the timetable: more than half a day, so not a connection we count.