AA 2549 then DL 5626 at Charlotte
Austin → Charlotte → Boston
Timetable, Charlotte time
10:02AA 2549 from Austin at the gate
09:50DL 5626 to Boston leaves the gate
23 h 48 apart on the timetable, overnight
DL 5626 leaves 23 h 48 after AA 2549 arrives on the timetable: more than half a day, so not a connection we count.