UA 1966 then UA 3237 at Houston
Austin → Houston → Mc Allen
Timetable, Houston time
06:28UA 1966 from Austin at the gate
19:45UA 3237 to Mc Allen leaves the gate
13 h 17 apart on the timetable
UA 3237 leaves 13 h 17 after UA 1966 arrives on the timetable: more than half a day, so not a connection we count.