UA 4822 then UA 3754 at Houston
Birmingham (Alabama) → Houston → Waco
Timetable, Houston time
13:13UA 4822 from Birmingham (Alabama) at the gate
11:30UA 3754 to Waco leaves the gate
22 h 17 apart on the timetable, overnight
UA 3754 leaves 22 h 17 after UA 4822 arrives on the timetable: more than half a day, so not a connection we count.