AS 609 then AS 208 at Seattle
Phoenix → Seattle → Anchorage
Timetable, Seattle time
15:55AS 609 from Phoenix at the gate
21:59AS 208 to Anchorage leaves the gate
6 h 04 apart on the timetable
Seattle’s board gives a departure time for only about 56% of its flights, so many days show no gate time.
The last days
AS 609 and AS 208 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.