DL 1247 then DL 2952 at Atlanta
Chicago O'Hare → Atlanta → Indianapolis
Timetable, Atlanta time
09:55DL 1247 from Chicago O'Hare at the gate
09:00DL 2952 to Indianapolis leaves the gate
23 h 05 apart on the timetable, overnight
DL 2952 leaves 23 h 05 after DL 1247 arrives on the timetable: more than half a day, so not a connection we count.