AA 2230 then UA 1711 at Houston
Miami → Houston → Austin
Timetable, Houston time
23:58AA 2230 from Miami at the gate
16:45UA 1711 to Austin leaves the gate
16 h 47 apart on the timetable, overnight
UA 1711 leaves 16 h 47 after AA 2230 arrives on the timetable: more than half a day, so not a connection we count.