AS 641 then AS 582 at Seattle
Tucson → Seattle → Portland (Oregon)
Timetable, Seattle time
18:33AS 641 from Tucson at the gate
20:59AS 582 to Portland (Oregon) leaves the gate
2 h 26 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 641 and AS 582 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.