DL 4097 then DL 4709 at Atlanta
South Bend → Atlanta → Springfield
Timetable, Atlanta time
16:02DL 4097 from South Bend at the gate
15:49DL 4709 to Springfield leaves the gate
23 h 47 apart on the timetable, overnight
DL 4709 leaves 23 h 47 after DL 4097 arrives on the timetable: more than half a day, so not a connection we count.