DL 360 then DL 678 at Atlanta
Washington National → Atlanta → New Orleans
Timetable, Atlanta time
17:55DL 360 from Washington National at the gate
17:46DL 678 to New Orleans leaves the gate
23 h 51 apart on the timetable, overnight
DL 678 leaves 23 h 51 after DL 360 arrives on the timetable: more than half a day, so not a connection we count.