AA 778 then AA 1574 at Miami
Los Angeles → Miami → Santo Domingo
Timetable, Miami time
04:51AA 778 from Los Angeles at the gate
18:19AA 1574 to Santo Domingo leaves the gate
13 h 28 apart on the timetable
AA 1574 leaves 13 h 28 after AA 778 arrives on the timetable: more than half a day, so not a connection we count.