Question : What are the chances this flight will be delayed?
Answer : Flights from YIP to IAD are on time 11% of the time, ranking in the 11th percentile worldwide. When there is a delay, it averages over an hour.
Question : How does Detroit to Dulles stack up against the rest of the world in overall promptness?
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.