AA 5510 then DL 2051 at Atlanta
Washington National → Atlanta → Houston Hobby
Timetable, Atlanta time
23:23AA 5510 from Washington National at the gate
22:09DL 2051 to Houston Hobby leaves the gate
22 h 46 apart on the timetable, overnight
DL 2051 leaves 22 h 46 after AA 5510 arrives on the timetable: more than half a day, so not a connection we count.