CV 21 then UA 587 at O'Hare
Anchorage → Chicago → Washington
Timetable, Chicago time
01:25CV 21 from Anchorage at the gate
14:21UA 587 to Washington leaves the gate
12 h 56 apart on the timetable
UA 587 leaves 12 h 56 after CV 21 arrives on the timetable: more than half a day, so not a connection we count.