AA 4775 then UA 3914 at O'Hare
Madison → Chicago → Houston
Timetable, Chicago time
06:14AA 4775 from Madison at the gate
20:30UA 3914 to Houston leaves the gate
14 h 16 apart on the timetable
UA 3914 leaves 14 h 16 after AA 4775 arrives on the timetable: more than half a day, so not a connection we count.