Question : How often are flights late from Boeing Field International Airport (BFI) to Pearson International Airport (YYZ)?
Answer : The Seattle to Toronto route has been particularly poor at getting passengers to their destination on time and currently ranks among the worst in the world. If a flight is late, expect an average of about an hour added to your flight time.
Question : In terms of overall promptness, how does BFI to YYZ rank compared to the rest of the world?
Answer : Using the combined on-time percentage and average delay breakdown, Seattle to Toronto currently has a 0 out of a possible 5 star rating. A 0-star rating means you should feel rather worried about getting to Toronto on time.