AA 4689 then DL 1518 at Atlanta
Washington National → Atlanta → Raleigh-Durham
Timetable, Atlanta time
19:44AA 4689 from Washington National at the gate
19:35DL 1518 to Raleigh-Durham leaves the gate
23 h 51 apart on the timetable, overnight
DL 1518 leaves 23 h 51 after AA 4689 arrives on the timetable: more than half a day, so not a connection we count.