AA 1846 then DL 5626 at Charlotte
Memphis → Charlotte → Boston
Timetable, Charlotte time
09:52AA 1846 from Memphis at the gate
09:50DL 5626 to Boston leaves the gate
23 h 58 apart on the timetable, overnight
DL 5626 leaves 23 h 58 after AA 1846 arrives on the timetable: more than half a day, so not a connection we count.