AA 4190 then CA 3174 at O'Hare
Roanoke → Chicago → Guangzhou
Timetable, Chicago time
18:15AA 4190 from Roanoke at the gate
13:40CA 3174 to Guangzhou leaves the gate
19 h 25 apart on the timetable, overnight
CA 3174 leaves 19 h 25 after AA 4190 arrives on the timetable: more than half a day, so not a connection we count.