AA 353 then AA 2259 at Miami
Boston → Miami → Quito
Timetable, Miami time
18:43AA 353 from Boston at the gate
18:21AA 2259 to Quito leaves the gate
23 h 38 apart on the timetable, overnight
AA 2259 leaves 23 h 38 after AA 353 arrives on the timetable: more than half a day, so not a connection we count.