UA 6210 then UA 3754 at Houston
Pensacola → Houston → Waco
Timetable, Houston time
12:27UA 6210 from Pensacola at the gate
11:30UA 3754 to Waco leaves the gate
23 h 03 apart on the timetable, overnight
UA 3754 leaves 23 h 03 after UA 6210 arrives on the timetable: more than half a day, so not a connection we count.