AA 5140 then DL 5630 at Charlotte
Savannah → Charlotte → Boston
Timetable, Charlotte time
16:19AA 5140 from Savannah at the gate
14:37DL 5630 to Boston leaves the gate
22 h 18 apart on the timetable, overnight
DL 5630 leaves 22 h 18 after AA 5140 arrives on the timetable: more than half a day, so not a connection we count.