DL 3122 then DL 3153 at Atlanta
Pittsburgh → Atlanta → Indianapolis
Timetable, Atlanta time
22:00DL 3122 from Pittsburgh at the gate
21:50DL 3153 to Indianapolis leaves the gate
23 h 50 apart on the timetable, overnight
DL 3153 leaves 23 h 50 after DL 3122 arrives on the timetable: more than half a day, so not a connection we count.