CZ 435 then AS 325 at O'Hare
Anchorage → Chicago → Portland (Oregon)
Timetable, Chicago time
17:05CZ 435 from Anchorage at the gate
14:07AS 325 to Portland (Oregon) leaves the gate
21 h 02 apart on the timetable, overnight
AS 325 leaves 21 h 02 after CZ 435 arrives on the timetable: more than half a day, so not a connection we count.