DL 5238 then DL 5478 at Detroit
Greenville-Spartanburg → Detroit → Cincinnati
Timetable, Detroit time
09:12DL 5238 from Greenville-Spartanburg at the gate
21:30DL 5478 to Cincinnati leaves the gate
12 h 18 apart on the timetable
DL 5478 leaves 12 h 18 after DL 5238 arrives on the timetable: more than half a day, so not a connection we count.