UA 3256 then UA 5285 at Houston
Corpus Christi → Houston → Oklahoma City
Timetable, Houston time
10:50UA 3256 from Corpus Christi at the gate
16:30UA 5285 to Oklahoma City leaves the gate
5 h 40 apart on the timetable
The last days
UA 3256 and UA 5285 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.