AA 504 then AA 5875 at Charlotte
Boston → Charlotte → Greensboro
Timetable, Charlotte time
13:54AA 504 from Boston at the gate
11:10AA 5875 to Greensboro leaves the gate
21 h 16 apart on the timetable, overnight
AA 5875 leaves 21 h 16 after AA 504 arrives on the timetable: more than half a day, so not a connection we count.