UA 4179 then CA 1018 at O'Hare
Roanoke → Chicago → Shanghai
Timetable, Chicago time
07:44UA 4179 from Roanoke at the gate
22:35CA 1018 to Shanghai leaves the gate
14 h 51 apart on the timetable
CA 1018 leaves 14 h 51 after UA 4179 arrives on the timetable: more than half a day, so not a connection we count.