AA 3934 then DL 936 at Seattle
Phoenix → Seattle → Anchorage
Timetable, Seattle time
17:50AA 3934 from Phoenix at the gate
20:40DL 936 to Anchorage leaves the gate
2 h 50 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
AA 3934 and DL 936 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.