DL 5238 then DL 2603 at Detroit
Greenville-Spartanburg → Detroit → New York LaGuardia
Timetable, Detroit time
09:12DL 5238 from Greenville-Spartanburg at the gate
21:35DL 2603 to New York LaGuardia leaves the gate
12 h 23 apart on the timetable
DL 2603 leaves 12 h 23 after DL 5238 arrives on the timetable: more than half a day, so not a connection we count.