AA 5510 then DL 1335 at Atlanta
Washington National → Atlanta → Austin
Timetable, Atlanta time
23:23AA 5510 from Washington National at the gate
21:55DL 1335 to Austin leaves the gate
22 h 32 apart on the timetable, overnight
DL 1335 leaves 22 h 32 after AA 5510 arrives on the timetable: more than half a day, so not a connection we count.