AA 1309 then CA 3174 at O'Hare
Puerto Vallarta → Chicago → Guangzhou
Timetable, Chicago time
18:04AA 1309 from Puerto Vallarta at the gate
13:40CA 3174 to Guangzhou leaves the gate
19 h 36 apart on the timetable, overnight
CA 3174 leaves 19 h 36 after AA 1309 arrives on the timetable: more than half a day, so not a connection we count.