DL 1407 then DL 5180 at Detroit
Raleigh-Durham → Detroit → Grand Rapids
Timetable, Detroit time
20:48DL 1407 from Raleigh-Durham at the gate
20:00DL 5180 to Grand Rapids leaves the gate
23 h 12 apart on the timetable, overnight
DL 5180 leaves 23 h 12 after DL 1407 arrives on the timetable: more than half a day, so not a connection we count.