UA 4179 then CA 3174 at O'Hare
Roanoke → Chicago → Guangzhou
Timetable, Chicago time
07:44UA 4179 from Roanoke at the gate
22:40CA 3174 to Guangzhou leaves the gate
14 h 56 apart on the timetable
CA 3174 leaves 14 h 56 after UA 4179 arrives on the timetable: more than half a day, so not a connection we count.