AA 2632 then AA 1597 at Philadelphia
Boston → Philadelphia → Charleston (South Carolina)
Timetable, Philadelphia time
19:12AA 2632 from Boston at the gate
18:37AA 1597 to Charleston (South Carolina) leaves the gate
23 h 25 apart on the timetable, overnight
AA 1597 leaves 23 h 25 after AA 2632 arrives on the timetable: more than half a day, so not a connection we count.