AA 5471 then DL 2494 at Atlanta
Washington National → Atlanta → Panama City Beach
Timetable, Atlanta time
08:30AA 5471 from Washington National at the gate
20:45DL 2494 to Panama City Beach leaves the gate
12 h 15 apart on the timetable
DL 2494 leaves 12 h 15 after AA 5471 arrives on the timetable: more than half a day, so not a connection we count.