UA 4111 then UA 2190 at Houston
Minot → Houston → Las Vegas
Timetable, Houston time
21:15UA 4111 from Minot at the gate
17:00UA 2190 to Las Vegas leaves the gate
19 h 45 apart on the timetable, overnight
UA 2190 leaves 19 h 45 after UA 4111 arrives on the timetable: more than half a day, so not a connection we count.