UA 8219 then KD 220 at O'Hare
San Francisco → Chicago → Anchorage
Timetable, Chicago time
23:54UA 8219 from San Francisco at the gate
04:58KD 220 to Anchorage leaves the gate
5 h 04 apart on the timetable, overnight
The last days
UA 8219 and KD 220 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.