AA 2230 then UA 4069 at Houston
Miami → Houston → Birmingham (Alabama)
Timetable, Houston time
23:58AA 2230 from Miami at the gate
18:20UA 4069 to Birmingham (Alabama) leaves the gate
18 h 22 apart on the timetable, overnight
UA 4069 leaves 18 h 22 after AA 2230 arrives on the timetable: more than half a day, so not a connection we count.