AA 6471 then CA 3174 at O'Hare
Dayton → Chicago → Guangzhou
Timetable, Chicago time
19:42AA 6471 from Dayton at the gate
13:40CA 3174 to Guangzhou leaves the gate
17 h 58 apart on the timetable, overnight
CA 3174 leaves 17 h 58 after AA 6471 arrives on the timetable: more than half a day, so not a connection we count.