AA 1688 then AA 1483 at Charlotte
Boston → Charlotte → Punta Cana
Timetable, Charlotte time
10:54AA 1688 from Boston at the gate
10:30AA 1483 to Punta Cana leaves the gate
23 h 36 apart on the timetable, overnight
AA 1483 leaves 23 h 36 after AA 1688 arrives on the timetable: more than half a day, so not a connection we count.