UA 3884 then CA 1056 at O'Hare
Melbourne (Florida) → Chicago → Shanghai
Timetable, Chicago time
01:06UA 3884 from Melbourne (Florida) at the gate
23:05CA 1056 to Shanghai leaves the gate
21 h 59 apart on the timetable
CA 1056 leaves 21 h 59 after UA 3884 arrives on the timetable: more than half a day, so not a connection we count.