AA 912 then UA 602 at Miami
Santiago de Chile → Miami → Chicago O'Hare
Timetable, Miami time
05:00AA 912 from Santiago de Chile at the gate
17:10UA 602 to Chicago O'Hare leaves the gate
12 h 10 apart on the timetable
UA 602 leaves 12 h 10 after AA 912 arrives on the timetable: more than half a day, so not a connection we count.