AA 2983 then DL 3020 at Atlanta
Philadelphia → Atlanta → Memphis
Timetable, Atlanta time
20:21AA 2983 from Philadelphia at the gate
20:10DL 3020 to Memphis leaves the gate
23 h 49 apart on the timetable, overnight
DL 3020 leaves 23 h 49 after AA 2983 arrives on the timetable: more than half a day, so not a connection we count.