AA 552 then DL 1329 at Atlanta
Dallas-Fort Worth → Atlanta → Philadelphia
Timetable, Atlanta time
16:32AA 552 from Dallas-Fort Worth at the gate
16:17DL 1329 to Philadelphia leaves the gate
23 h 45 apart on the timetable, overnight
DL 1329 leaves 23 h 45 after AA 552 arrives on the timetable: more than half a day, so not a connection we count.