Skip to main content
Beginning of main content

Cheap Flights from Islip to Seattle

Search over 321,000 hotels worldwide and 400 airlines worldwide.
Secure incredible value with Expedia's Price Guarantee.
No Expedia cancellation fee to change or cancel almost any hotel reservation.

Interesting Facts About Flights from Islip to Seattle (ISP to BFI)

Question : What is the likelihood your flight will be delayed for this route?
Answer : The Ronkonkoma 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 late, it's a 28-minute delay on average.

Question : What's the likelihood of you being delayed on this route?
Answer : The best measurement of overall promptness combines both on-time percentage and total delay minutes. ISP to BFI currently has 0 stars out of 5, earning it one of the lower scores in the world.