AA 5353 then AA 6003 at Charlotte
Wilmington → Charlotte → Huntsville
Timetable, Charlotte time
15:16AA 5353 from Wilmington at the gate
14:40AA 6003 to Huntsville leaves the gate
23 h 24 apart on the timetable, overnight
AA 6003 leaves 23 h 24 after AA 5353 arrives on the timetable: more than half a day, so not a connection we count.