CV 21 then UA 769 at O'Hare
Anchorage → Chicago → Barcelona
Timetable, Chicago time
22:27CV 21 from Anchorage at the gate
21:50UA 769 to Barcelona leaves the gate
23 h 23 apart on the timetable, overnight
UA 769 leaves 23 h 23 after CV 21 arrives on the timetable: more than half a day, so not a connection we count.