UA 5191 then UA 1497 at Houston
Oklahoma City → Houston → New York LaGuardia
Timetable, Houston time
09:30UA 5191 from Oklahoma City at the gate
08:04UA 1497 to New York LaGuardia leaves the gate
22 h 34 apart on the timetable, overnight
UA 1497 leaves 22 h 34 after UA 5191 arrives on the timetable: more than half a day, so not a connection we count.