AA 504 then AA 2410 at Charlotte
Boston → Charlotte → Puerto Plata
Timetable, Charlotte time
13:54AA 504 from Boston at the gate
11:28AA 2410 to Puerto Plata leaves the gate
21 h 34 apart on the timetable, overnight
AA 2410 leaves 21 h 34 after AA 504 arrives on the timetable: more than half a day, so not a connection we count.