AA 6322 then UA 3914 at O'Hare
Grand Rapids → Chicago → Houston
Timetable, Chicago time
21:45AA 6322 from Grand Rapids at the gate
20:30UA 3914 to Houston leaves the gate
22 h 45 apart on the timetable, overnight
UA 3914 leaves 22 h 45 after AA 6322 arrives on the timetable: more than half a day, so not a connection we count.