UA 2079 then UA 3754 at Houston
Queretaro → Houston → Waco
Timetable, Houston time
14:52UA 2079 from Queretaro at the gate
11:30UA 3754 to Waco leaves the gate
20 h 38 apart on the timetable, overnight
UA 3754 leaves 20 h 38 after UA 2079 arrives on the timetable: more than half a day, so not a connection we count.