Question : Is this route your best bet for getting to Dulles with minimal delays?
Answer : YIP to IAD currently scores 1 out of a possible 5 stars in promptness. This score combines both the number of delayed flights and total delay minutes. With 1 star, you should feel rather worried about getting to Dulles on time.
Question : What is the likelihood your flight will be delayed for this route?
Answer : Passengers are currently getting to their destination on schedule 13% of the time, which ranks in the bottom 25% of the world. If a flight is delayed, expect an average of about an hour added to your flight time.