AA 5510 then DL 3131 at Atlanta
Washington National → Atlanta → Panama City Beach
Timetable, Atlanta time
23:23AA 5510 from Washington National at the gate
23:10DL 3131 to Panama City Beach leaves the gate
23 h 47 apart on the timetable, overnight
DL 3131 leaves 23 h 47 after AA 5510 arrives on the timetable: more than half a day, so not a connection we count.