AA 6441 then AA 3232 at Phoenix
Flagstaff → Phoenix → Houston
Timetable, Phoenix time
07:21AA 6441 from Flagstaff at the gate
20:07AA 3232 to Houston leaves the gate
12 h 46 apart on the timetable
AA 3232 leaves 12 h 46 after AA 6441 arrives on the timetable: more than half a day, so not a connection we count.