DL 1605 then AA 4616 at Detroit
Fort Lauderdale → Detroit → Washington National
Timetable, Detroit time
15:54DL 1605 from Fort Lauderdale at the gate
13:10AA 4616 to Washington National leaves the gate
21 h 16 apart on the timetable, overnight
AA 4616 leaves 21 h 16 after DL 1605 arrives on the timetable: more than half a day, so not a connection we count.