CV 209 then UA 3907 at O'Hare
Anchorage → Chicago → Washington
Timetable, Chicago time
19:50CV 209 from Anchorage at the gate
12:00UA 3907 to Washington leaves the gate
16 h 10 apart on the timetable, overnight
UA 3907 leaves 16 h 10 after CV 209 arrives on the timetable: more than half a day, so not a connection we count.