AA 5457 then AA 1828 at Charlotte
Manchester → Charlotte → Boston
Timetable, Charlotte time
18:18AA 5457 from Manchester at the gate
17:59AA 1828 to Boston leaves the gate
23 h 41 apart on the timetable, overnight
AA 1828 leaves 23 h 41 after AA 5457 arrives on the timetable: more than half a day, so not a connection we count.