AA 3610 then CA 3174 at O'Hare
Toronto Pearson → Chicago → Guangzhou
Timetable, Chicago time
19:41AA 3610 from Toronto Pearson at the gate
13:40CA 3174 to Guangzhou leaves the gate
17 h 59 apart on the timetable, overnight
CA 3174 leaves 17 h 59 after AA 3610 arrives on the timetable: more than half a day, so not a connection we count.