Question : Should you be aware of any airlines that have a reputation of delays for this route?
Answer : Flights on Flexjet to Seattle from San Diego during the last month were delayed 100% of the time. If you should choose this airline, be sure to track the flight status to stay on top of the departure time.
Question : How does San Diego to Seattle stack up against the rest of the world in overall promptness?
Answer : SAN to BFI currently scores 2.3 out of a possible 5 stars in promptness. This score combines both the number of delayed flights and total delayed minutes. With 2.3 stars, you should plan on being extra flexible with your arrival plans.