AA 2405 then DL 1692 at Philadelphia
Austin → Philadelphia → Atlanta
Timetable, Philadelphia time
17:44AA 2405 from Austin at the gate
17:17DL 1692 to Atlanta leaves the gate
23 h 33 apart on the timetable, overnight
DL 1692 leaves 23 h 33 after AA 2405 arrives on the timetable: more than half a day, so not a connection we count.