AA 3100 then UA 3917 at Houston
Miami → Houston → Austin
Timetable, Houston time
08:59AA 3100 from Miami at the gate
07:30UA 3917 to Austin leaves the gate
22 h 31 apart on the timetable, overnight
UA 3917 leaves 22 h 31 after AA 3100 arrives on the timetable: more than half a day, so not a connection we count.