AA 706 then DL 1477 at O'Hare
Washington National → Chicago → Atlanta
Timetable, Chicago time
16:18AA 706 from Washington National at the gate
15:59DL 1477 to Atlanta leaves the gate
23 h 41 apart on the timetable, overnight
DL 1477 leaves 23 h 41 after AA 706 arrives on the timetable: more than half a day, so not a connection we count.