AA 5510 then DL 3022 at Atlanta
Washington National → Atlanta → Huntsville
Timetable, Atlanta time
23:23AA 5510 from Washington National at the gate
23:00DL 3022 to Huntsville leaves the gate
23 h 37 apart on the timetable, overnight
DL 3022 leaves 23 h 37 after AA 5510 arrives on the timetable: more than half a day, so not a connection we count.