AS 513 then AS 2102 at Seattle
Santa Rosa → Seattle → Boise
Timetable, Seattle time
09:00AS 513 from Santa Rosa at the gate
17:38AS 2102 to Boise leaves the gate
8 h 38 apart on the timetable
Seattle’s board gives a departure time for only about 57% of its flights, so many days show no gate time.
The last days
AS 513 and AS 2102 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.