DL 1605 then DL 4997 at Detroit
Fort Lauderdale → Detroit → Lexington
Timetable, Detroit time
15:54DL 1605 from Fort Lauderdale at the gate
15:52DL 4997 to Lexington leaves the gate
23 h 58 apart on the timetable, overnight
DL 4997 leaves 23 h 58 after DL 1605 arrives on the timetable: more than half a day, so not a connection we count.