AA 2983 then DL 1450 at Atlanta
Philadelphia → Atlanta → New Orleans
Timetable, Atlanta time
20:21AA 2983 from Philadelphia at the gate
19:59DL 1450 to New Orleans leaves the gate
23 h 38 apart on the timetable, overnight
DL 1450 leaves 23 h 38 after AA 2983 arrives on the timetable: more than half a day, so not a connection we count.