AA 5390 then AA 6006 at Charlotte
Lexington → Charlotte → Huntsville
Timetable, Charlotte time
09:22AA 5390 from Lexington at the gate
09:20AA 6006 to Huntsville leaves the gate
23 h 58 apart on the timetable, overnight
AA 6006 leaves 23 h 58 after AA 5390 arrives on the timetable: more than half a day, so not a connection we count.