DL 3837 then DL 5101 at Detroit
South Bend → Detroit → Birmingham (Alabama)
Timetable, Detroit time
09:30DL 3837 from South Bend at the gate
08:40DL 5101 to Birmingham (Alabama) leaves the gate
23 h 10 apart on the timetable, overnight
DL 5101 leaves 23 h 10 after DL 3837 arrives on the timetable: more than half a day, so not a connection we count.