AA 660 then DL 2548 at Detroit
Dallas-Fort Worth → Detroit → Miami
Timetable, Detroit time
18:34AA 660 from Dallas-Fort Worth at the gate
18:14DL 2548 to Miami leaves the gate
23 h 40 apart on the timetable, overnight
DL 2548 leaves 23 h 40 after AA 660 arrives on the timetable: more than half a day, so not a connection we count.