UA 625 then UA 3754 at Houston
Phoenix → Houston → Waco
Timetable, Houston time
12:50UA 625 from Phoenix at the gate
11:30UA 3754 to Waco leaves the gate
22 h 40 apart on the timetable, overnight
UA 3754 leaves 22 h 40 after UA 625 arrives on the timetable: more than half a day, so not a connection we count.