UA 6258 then UA 3237 at Houston
Oklahoma City → Houston → Mc Allen
Timetable, Houston time
06:39UA 6258 from Oklahoma City at the gate
19:45UA 3237 to Mc Allen leaves the gate
13 h 06 apart on the timetable
UA 3237 leaves 13 h 06 after UA 6258 arrives on the timetable: more than half a day, so not a connection we count.