AA 2230 then UA 847 at Houston
Miami → Houston → Santiago de Chile
Timetable, Houston time
23:58AA 2230 from Miami at the gate
20:50UA 847 to Santiago de Chile leaves the gate
20 h 52 apart on the timetable, overnight
UA 847 leaves 20 h 52 after AA 2230 arrives on the timetable: more than half a day, so not a connection we count.