UA 4301 then UA 469 at Houston
Lubbock → Houston → Los Angeles
Timetable, Houston time
18:41UA 4301 from Lubbock at the gate
10:00UA 469 to Los Angeles leaves the gate
15 h 19 apart on the timetable, overnight
UA 469 leaves 15 h 19 after UA 4301 arrives on the timetable: more than half a day, so not a connection we count.