AA 6000 then DL 5630 at Charlotte
Huntsville → Charlotte → Boston
Timetable, Charlotte time
15:16AA 6000 from Huntsville at the gate
14:37DL 5630 to Boston leaves the gate
23 h 21 apart on the timetable, overnight
DL 5630 leaves 23 h 21 after AA 6000 arrives on the timetable: more than half a day, so not a connection we count.