AF 2661 then WS 5414 at San Francisco
Seattle → San Francisco → Detroit
Timetable, San Francisco time
17:05AF 2661 from Seattle at the gatealso KL 5503
22:35WS 5414 to Detroit leaves the gate
5 h 30 apart on the timetable
The last days
AF 2661 and WS 5414 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.