DL 1680 then DL 4033 at Atlanta
Cincinnati → Atlanta → South Bend
Timetable, Atlanta time
21:43DL 1680 from Cincinnati at the gate
14:36DL 4033 to South Bend leaves the gate
16 h 53 apart on the timetable, overnight
DL 4033 leaves 16 h 53 after DL 1680 arrives on the timetable: more than half a day, so not a connection we count.