AA 5510 then DL 1459 at Atlanta
Washington National → Atlanta → Columbus (Ohio)
Timetable, Atlanta time
23:23AA 5510 from Washington National at the gate
22:57DL 1459 to Columbus (Ohio) leaves the gate
23 h 34 apart on the timetable, overnight
DL 1459 leaves 23 h 34 after AA 5510 arrives on the timetable: more than half a day, so not a connection we count.