UA 4346 then UA 3755 at Houston
Brownsville → Houston → Lubbock
Timetable, Houston time
08:32UA 4346 from Brownsville at the gate
22:10UA 3755 to Lubbock leaves the gate
13 h 38 apart on the timetable
UA 3755 leaves 13 h 38 after UA 4346 arrives on the timetable: more than half a day, so not a connection we count.