UA 4301 then UA 2402 at Houston
Lubbock → Houston → Newark
Timetable, Houston time
18:41UA 4301 from Lubbock at the gate
09:44UA 2402 to Newark leaves the gate
15 h 03 apart on the timetable, overnight
UA 2402 leaves 15 h 03 after UA 4301 arrives on the timetable: more than half a day, so not a connection we count.