UA 2083 then UA 3755 at Houston
Quito → Houston → Lubbock
Timetable, Houston time
05:50UA 2083 from Quito at the gate
22:10UA 3755 to Lubbock leaves the gate
16 h 20 apart on the timetable
UA 3755 leaves 16 h 20 after UA 2083 arrives on the timetable: more than half a day, so not a connection we count.