DL 4885 then DL 2171 at Detroit
Grand Rapids → Detroit → Fort Lauderdale
Timetable, Detroit time
06:30DL 4885 from Grand Rapids at the gate
18:58DL 2171 to Fort Lauderdale leaves the gate
12 h 28 apart on the timetable
DL 2171 leaves 12 h 28 after DL 4885 arrives on the timetable: more than half a day, so not a connection we count.