AS 2159 then MC 251 at Seattle
Tulsa → Seattle → Anchorage
Timetable, Seattle time
20:22AS 2159 from Tulsa at the gate
05:30MC 251 to Anchorage leaves the gate
9 h 08 apart on the timetable, overnight
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 2159 and MC 251 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.