DL 5232 then DL 5390 at Detroit
Memphis → Detroit → Grand Rapids
Timetable, Detroit time
20:50DL 5232 from Memphis at the gate
12:50DL 5390 to Grand Rapids leaves the gate
16 h apart on the timetable, overnight
DL 5390 leaves 16 h after DL 5232 arrives on the timetable: more than half a day, so not a connection we count.