AS 3443 then AA 727 at Seattle
Portland (Oregon) → Seattle → Dallas-Fort Worth
Timetable, Seattle time
06:00AS 3443 from Portland (Oregon) at the gate
17:47AA 727 to Dallas-Fort Worth leaves the gate
11 h 47 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 3443 and AA 727 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.