AA 831 then AA 2099 at Miami
Washington National → Miami → Santo Domingo
Timetable, Miami time
07:43AA 831 from Washington National at the gate
06:55AA 2099 to Santo Domingo leaves the gate
23 h 12 apart on the timetable, overnight
AA 2099 leaves 23 h 12 after AA 831 arrives on the timetable: more than half a day, so not a connection we count.