AS 2345 then AS 408 at Seattle
Calgary → Seattle → Anchorage
Timetable, Seattle time
12:21AS 2345 from Calgary at the gate
19:58AS 408 to Anchorage leaves the gate
7 h 37 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 2345 and AS 408 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.