UA 3914 then UA 273 at Houston
Chicago → Houston → Tampa
Timetable, Houston time
23:27UA 3914 from Chicago at the gate
14:20UA 273 to Tampa leaves the gate
14 h 53 apart on the timetable, overnight
UA 273 leaves 14 h 53 after UA 3914 arrives on the timetable: more than half a day, so not a connection we count.