AA 2604 then CA 3174 at O'Hare
Austin → Chicago → Guangzhou
Timetable, Chicago time
20:03AA 2604 from Austin at the gate
13:40CA 3174 to Guangzhou leaves the gate
17 h 37 apart on the timetable, overnight
CA 3174 leaves 17 h 37 after AA 2604 arrives on the timetable: more than half a day, so not a connection we count.