CV 251 then AA 562 at O'Hare
Anchorage → Chicago → Portland (Oregon)
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
09:45AA 562 to Portland (Oregon) leaves the gate
14 h 45 apart on the timetable, overnight
AA 562 leaves 14 h 45 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.