UA 4111 then UA 2353 at Houston
Minot → Houston → Port of Spain
Timetable, Houston time
21:15UA 4111 from Minot at the gate
16:58UA 2353 to Port of Spain leaves the gate
19 h 43 apart on the timetable, overnight
UA 2353 leaves 19 h 43 after UA 4111 arrives on the timetable: more than half a day, so not a connection we count.