UA 1310 then CA 3104 at O'Hare
New York LaGuardia → Chicago → Shanghai
Timetable, Chicago time
11:46UA 1310 from New York LaGuardia at the gate
11:40CA 3104 to Shanghai leaves the gate
23 h 54 apart on the timetable, overnight
CA 3104 leaves 23 h 54 after UA 1310 arrives on the timetable: more than half a day, so not a connection we count.