CV 251 then K4 528 at O'Hare
Anchorage → Chicago → Tokyo Narita
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
07:45K4 528 to Tokyo Narita leaves the gate
12 h 45 apart on the timetable, overnight
K4 528 leaves 12 h 45 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.