AA 5510 then DL 2224 at Atlanta
Washington National → Atlanta → New Orleans
Timetable, Atlanta time
23:23AA 5510 from Washington National at the gate
23:20DL 2224 to New Orleans leaves the gate
23 h 57 apart on the timetable, overnight
DL 2224 leaves 23 h 57 after AA 5510 arrives on the timetable: more than half a day, so not a connection we count.