AA 5503 then DL 1266 at Atlanta
Washington National → Atlanta → West Palm Beach
Timetable, Atlanta time
16:16AA 5503 from Washington National at the gate
07:00DL 1266 to West Palm Beach leaves the gate
14 h 44 apart on the timetable, overnight
DL 1266 leaves 14 h 44 after AA 5503 arrives on the timetable: more than half a day, so not a connection we count.