UA 5191 then UA 2744 at Houston
Oklahoma City → Houston → San Francisco
Timetable, Houston time
09:30UA 5191 from Oklahoma City at the gate
08:25UA 2744 to San Francisco leaves the gate
22 h 55 apart on the timetable, overnight
UA 2744 leaves 22 h 55 after UA 5191 arrives on the timetable: more than half a day, so not a connection we count.