CV 21 then DL 1818 at O'Hare
Anchorage → Chicago → Seattle (SEA)
Timetable, Chicago time
22:27CV 21 from Anchorage at the gate
17:30DL 1818 to Seattle (SEA) leaves the gate
19 h 03 apart on the timetable, overnight
DL 1818 leaves 19 h 03 after CV 21 arrives on the timetable: more than half a day, so not a connection we count.