AA 835 then AA 2131 at Charlotte
Boston → Charlotte → Saint Martin
Timetable, Charlotte time
19:29AA 835 from Boston at the gate
08:25AA 2131 to Saint Martin leaves the gate
12 h 56 apart on the timetable, overnight
AA 2131 leaves 12 h 56 after AA 835 arrives on the timetable: more than half a day, so not a connection we count.