AS 688 then UA 8153 at San Francisco
Seattle → San Francisco → Washington
Timetable, San Francisco time
16:01AS 688 from Seattle at the gatealso QR 2147, QR 2153, QR 3438, QR 4280
22:53UA 8153 to Washington leaves the gate
6 h 52 apart on the timetable
The last days
AS 688 and UA 8153 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.