KL 611 then BR 643 at O'Hare
Amsterdam → Chicago → Anchorage
Timetable, Chicago time
14:25KL 611 from Amsterdam at the gate
11:55BR 643 to Anchorage leaves the gate
21 h 30 apart on the timetable, overnight
BR 643 leaves 21 h 30 after KL 611 arrives on the timetable: more than half a day, so not a connection we count.