AA 2601 then WN 1543 at Denver
Phoenix Sky Harbor → Denver → Seattle
Timetable, Denver time
00:40AA 2601 from Phoenix Sky Harbor at the gate
08:50WN 1543 to Seattle leaves the gate
8 h 10 apart on the timetable
The last days
AA 2601 and WN 1543 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.