AS 3442 then DL 1963 at Seattle
Eugene → Seattle → Phoenix
Timetable, Seattle time
15:00AS 3442 from Eugene at the gate
15:35DL 1963 to Phoenix leaves the gate
35 min 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 3442 and DL 1963 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.