UA 4301 then UA 4766 at Houston
Lubbock → Houston → Shreveport
Timetable, Houston time
18:41UA 4301 from Lubbock at the gate
18:20UA 4766 to Shreveport leaves the gate
23 h 39 apart on the timetable, overnight
UA 4766 leaves 23 h 39 after UA 4301 arrives on the timetable: more than half a day, so not a connection we count.