$477 Cheap Flights from Bellingham (BLI) to Islip (ISP)

View $477 flight on Sat, Jan 24, 2026Opens in a new window

Popular airlines from Bellingham, WA (BLI-Bellingham Intl.) to MacArthur Airport (ISP)

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Cheap Flights from Bellingham to Islip (BLI-ISP)

Prices were available within the past 7 days and start at $477 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Bellingham Intl. Airport (BLI) to MacArthur Airport (ISP) cost?
Lock in a cheap one-way flight from $477 or cheap return flight from Bellingham Intl. Airport (BLI) to MacArthur Airport (ISP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Bellingham Intl. Airport (BLI) to MacArthur Airport (ISP)?
The cheapest month to fly from BLI to ISP is , when demand is low. Off-peak season is generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Bellingham Intl. Airport (BLI) to MacArthur Airport (ISP)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest BLI to ISP flight.
How many flights per day from Bellingham Intl. Airport (BLI) to MacArthur Airport (ISP)?
There are no daily direct flights available from Bellingham Intl. Airport (BLI) to MacArthur Airport (ISP). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from BLI to ISP?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can vary depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Bellingham Intl. Airport (BLI) to MacArthur Airport (ISP)?
To arrive at MacArthur Airport (ISP) without delays, pick a flight that leaves from Bellingham Intl. Airport (BLI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Bellingham Intl. Airport (BLI) to MacArthur Airport (ISP) last-minute?
Last-minute fares from BLI to ISP are usually more expensive. For the lowest rates, start looking for flights as early as possible. That being said, if you're flexible with your travel dates, it's possible to find a cheap ticket right before your trip.
Is it cheaper to book a BLI to ISP flight and hotel package?
Opting for a BLI to ISP flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our extensive range of hotels and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Bellingham Intl. Airport (BLI) to MacArthur Airport (ISP)?
In most instances, you're able to cancel or reschedule your BLI to ISP flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you'd like more information, go to our Customer Service portal.

Travel information

Origin airport
Bellingham Intl.
Destination airport
MacArthur
Distance
2440 mi

Book with confidence

Bellingham to Islip Flights

The cheapest times to fly from Bellingham to Islip

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Bellingham to Islip are during the month of . You can find some of the cheapest flights from Bellingham to Islip with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Bellingham to Islip

Sunday is one of the best days to book for cheap flights from Bellingham to Islip: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Bellingham to Islip

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Bellingham to Islip in 2026. You can also book with separate airlines for your outbound and return journeys, from $477 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Bellingham to Islip flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Bellingham to Islip airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Bellingham to Islip Flights

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*Available to One Key members.