CA 1019 then UA 646 at O'Hare
Anchorage → Chicago → Denver
Timetable, Chicago time
05:59CA 1019 from Anchorage at the gate
13:30UA 646 to Denver leaves the gate
7 h 31 apart on the timetable
The last days
CA 1019 and UA 646 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.