Question : Is this route your best bet for getting to Seattle with minimal delays?
Answer : Using the combined on-time percentage and average delay breakdown, Saint Louis to Seattle currently has a 0 out of a possible 5 star rating. A 0-star rating means you should feel rather worried about getting to Seattle on time.
Question : How often is the Lambert-St. Louis International Airport (STL) to Boeing Field International Airport (BFI) route delayed?
Answer : The Saint Louis to Seattle route has been particularly poor at getting passengers to their destination on time and currently ranks among the worst in the world. When a flight is delayed, it's a 51-minute delay on average.