AA 5136 then DL 5626 at Charlotte
Memphis → Charlotte → Boston
Timetable, Charlotte time
11:22AA 5136 from Memphis at the gate
09:50DL 5626 to Boston leaves the gate
22 h 28 apart on the timetable, overnight
DL 5626 leaves 22 h 28 after AA 5136 arrives on the timetable: more than half a day, so not a connection we count.