WN 9003 then UA 1079 at San Francisco
Phoenix → San Francisco → Seattle
Timetable, San Francisco time
11:18WN 9003 from Phoenix at the gate
21:05UA 1079 to Seattle leaves the gatealso NZ 9408
9 h 47 apart on the timetable
The last days
WN 9003 and UA 1079 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.