Question : What is the likelihood your flight will be delayed for this route?
Answer : The Kansas City to Seattle 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 delayed, expect an average of about half an hour added to your flight time.
Question : Is this route your best bet for getting to Seattle with minimal delays?
Answer : The best measurement of overall promptness combines both on-time percentage and total delay minutes. MCI to BFI currently has 0 stars out of 5, earning it a far below-average performance compared to the rest of the world.