CA 1017 then DL 1564 at O'Hare
Anchorage → Chicago → Seattle (SEA)
Timetable, Chicago time
16:01CA 1017 from Anchorage at the gate
12:58DL 1564 to Seattle (SEA) leaves the gate
20 h 57 apart on the timetable, overnight
DL 1564 leaves 20 h 57 after CA 1017 arrives on the timetable: more than half a day, so not a connection we count.