Question : How often are flights late from Willow Run Airport (YIP) to Philadelphia International Airport (PHL)?
Answer : The Detroit to Philadelphia route has been particularly poor at getting passengers to their destination on time and currently ranks among the worst in the world. When there is a delay, it averages about an hour.
Question : What's the likelihood of you being delayed on this route?
Answer : YIP to PHL currently scores 0 out of a possible 5 stars in promptness. This score combines both the number of delayed flights and total delay minutes. With 0 stars, you should feel rather worried about getting to Philadelphia on time.