AA 3232 then UA 4842 at Houston
Phoenix → Houston → Laredo
Timetable, Houston time
23:54AA 3232 from Phoenix at the gate
20:14UA 4842 to Laredo leaves the gate
20 h 20 apart on the timetable, overnight
UA 4842 leaves 20 h 20 after AA 3232 arrives on the timetable: more than half a day, so not a connection we count.