DL 4634 then DL 4013 at Detroit
Indianapolis → Detroit → Lexington
Timetable, Detroit time
07:55DL 4634 from Indianapolis at the gate
19:56DL 4013 to Lexington leaves the gate
12 h 01 apart on the timetable
DL 4013 leaves 12 h 01 after DL 4634 arrives on the timetable: more than half a day, so not a connection we count.