AA 5471 then DL 1509 at Atlanta
Washington National → Atlanta → Houston Hobby
Timetable, Atlanta time
08:30AA 5471 from Washington National at the gate
08:16DL 1509 to Houston Hobby leaves the gate
23 h 46 apart on the timetable, overnight
DL 1509 leaves 23 h 46 after AA 5471 arrives on the timetable: more than half a day, so not a connection we count.