K4 537 then KL 612 at O'Hare
Anchorage → Chicago → Amsterdam
Timetable, Chicago time
23:39K4 537 from Anchorage at the gate
16:25KL 612 to Amsterdam leaves the gate
16 h 46 apart on the timetable, overnight
KL 612 leaves 16 h 46 after K4 537 arrives on the timetable: more than half a day, so not a connection we count.