K4 556 then GK 109 at Narita
Chicago → Tokyo → Sapporo
Timetable, Tokyo time
21:48K4 556 from Chicago at the gate
13:55GK 109 to Sapporo leaves the gate
16 h 07 apart on the timetable, overnight
GK 109 leaves 16 h 07 after K4 556 arrives on the timetable: more than half a day, so not a connection we count.