AA 3232 then AA 1859 at Houston
Phoenix → Houston → Miami
Timetable, Houston time
23:54AA 3232 from Phoenix at the gate
18:27AA 1859 to Miami leaves the gate
18 h 33 apart on the timetable, overnight
AA 1859 leaves 18 h 33 after AA 3232 arrives on the timetable: more than half a day, so not a connection we count.