UA 4301 then UA 2118 at Houston
Lubbock → Houston → Silao
Timetable, Houston time
18:41UA 4301 from Lubbock at the gate
09:40UA 2118 to Silao leaves the gate
14 h 59 apart on the timetable, overnight
UA 2118 leaves 14 h 59 after UA 4301 arrives on the timetable: more than half a day, so not a connection we count.