AF 2661 then UA 573 at San Francisco
Seattle → San Francisco → Denver
Timetable, San Francisco time
17:05AF 2661 from Seattle at the gatealso KL 5503
20:23UA 573 to Denver leaves the gatealso AC 4081
3 h 18 apart on the timetable
The last days
AF 2661 and UA 573 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.
Later flights to Denver
UA 30121:244 h 19 after AF 2661 on the timetable