AA 3538 then AA 2131 at Charlotte
Savannah → Charlotte → Saint Martin
Timetable, Charlotte time
14:15AA 3538 from Savannah at the gate
08:25AA 2131 to Saint Martin leaves the gate
18 h 10 apart on the timetable, overnight
AA 2131 leaves 18 h 10 after AA 3538 arrives on the timetable: more than half a day, so not a connection we count.