AV 6985 then UA 8150 at San Francisco
Vancouver → San Francisco → Seattle
Timetable, San Francisco time
10:36AV 6985 from Vancouver at the gate
11:51UA 8150 to Seattle leaves the gate
1 h 15 apart on the timetable
The last days
AV 6985 and UA 8150 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.