DL 5078 then DL 3964 at Detroit
Fort Wayne → Detroit → Grand Rapids
Timetable, Detroit time
15:10DL 5078 from Fort Wayne at the gate
09:00DL 3964 to Grand Rapids leaves the gate
17 h 50 apart on the timetable, overnight
DL 3964 leaves 17 h 50 after DL 5078 arrives on the timetable: more than half a day, so not a connection we count.