UA 2393 then UA 3755 at Houston
Austin → Houston → Lubbock
Timetable, Houston time
08:08UA 2393 from Austin at the gate
22:10UA 3755 to Lubbock leaves the gate
14 h 02 apart on the timetable
UA 3755 leaves 14 h 02 after UA 2393 arrives on the timetable: more than half a day, so not a connection we count.