DL 1605 then DL 1371 at Detroit
Fort Lauderdale → Detroit → St Louis
Timetable, Detroit time
15:54DL 1605 from Fort Lauderdale at the gate
12:40DL 1371 to St Louis leaves the gate
20 h 46 apart on the timetable, overnight
DL 1371 leaves 20 h 46 after DL 1605 arrives on the timetable: more than half a day, so not a connection we count.