NH 8421 then IJ 3 at Narita
Chicago → Tokyo → Shanghai
Timetable, Tokyo time
18:38NH 8421 from Chicago at the gate
13:45IJ 3 to Shanghai leaves the gate
19 h 07 apart on the timetable, overnight
IJ 3 leaves 19 h 07 after NH 8421 arrives on the timetable: more than half a day, so not a connection we count.