AA 3232 then UA 6208 at Houston
Phoenix → Houston → Richmond
Timetable, Houston time
23:54AA 3232 from Phoenix at the gate
18:20UA 6208 to Richmond leaves the gate
18 h 26 apart on the timetable, overnight
UA 6208 leaves 18 h 26 after AA 3232 arrives on the timetable: more than half a day, so not a connection we count.