CV 21 then UA 3402 at O'Hare
Anchorage → Chicago → Ottawa
Timetable, Chicago time
22:27CV 21 from Anchorage at the gate
17:58UA 3402 to Ottawa leaves the gate
19 h 31 apart on the timetable, overnight
UA 3402 leaves 19 h 31 after CV 21 arrives on the timetable: more than half a day, so not a connection we count.