AA 2230 then UA 1486 at Houston
Miami → Houston → Chicago
Timetable, Houston time
16:07AA 2230 from Miami at the gate
05:00UA 1486 to Chicago leaves the gate
12 h 53 apart on the timetable, overnight
UA 1486 leaves 12 h 53 after AA 2230 arrives on the timetable: more than half a day, so not a connection we count.