DL 1152 then DL 1450 at Atlanta
Philadelphia → Atlanta → New Orleans
Timetable, Atlanta time
08:46DL 1152 from Philadelphia at the gate
20:59DL 1450 to New Orleans leaves the gate
12 h 13 apart on the timetable
DL 1450 leaves 12 h 13 after DL 1152 arrives on the timetable: more than half a day, so not a connection we count.