AA 4105 then CA 3174 at O'Hare
Detroit → Chicago → Guangzhou
Timetable, Chicago time
21:30AA 4105 from Detroit at the gate
13:40CA 3174 to Guangzhou leaves the gate
16 h 10 apart on the timetable, overnight
CA 3174 leaves 16 h 10 after AA 4105 arrives on the timetable: more than half a day, so not a connection we count.