AA 4697 then DL 5442 at Atlanta
Washington National → Atlanta → Allentown
Timetable, Atlanta time
10:17AA 4697 from Washington National at the gate
09:58DL 5442 to Allentown leaves the gate
23 h 41 apart on the timetable, overnight
DL 5442 leaves 23 h 41 after AA 4697 arrives on the timetable: more than half a day, so not a connection we count.