UA 3015 then CA 1020 at O'Hare
Saint Martin → Chicago → Shanghai
Timetable, Chicago time
20:48UA 3015 from Saint Martin at the gate
19:30CA 1020 to Shanghai leaves the gate
22 h 42 apart on the timetable, overnight
CA 1020 leaves 22 h 42 after UA 3015 arrives on the timetable: more than half a day, so not a connection we count.