UA 3985 then UA 3754 at Houston
Des Moines → Houston → College Station
Timetable, Houston time
10:40UA 3985 from Des Moines at the gate
10:00UA 3754 to College Station leaves the gate
23 h 20 apart on the timetable, overnight
UA 3754 leaves 23 h 20 after UA 3985 arrives on the timetable: more than half a day, so not a connection we count.