UA 2197 then UA 3754 at Houston
Pittsburgh → Houston → College Station
Timetable, Houston time
15:11UA 2197 from Pittsburgh at the gate
10:00UA 3754 to College Station leaves the gate
18 h 49 apart on the timetable, overnight
UA 3754 leaves 18 h 49 after UA 2197 arrives on the timetable: more than half a day, so not a connection we count.