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

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 for one-way flights and $2,055 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Dec 20 - Sun, Jan 4
BLI
Bellingham
ISP
Islip
$2,055 Roundtrip, found 3 days ago
$2,055
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Dec 20 from Bellingham to Islip, returning Sun, Jan 4, priced at $2,055 found 3 days ago
Alaska Airlines
Sat, Dec 20 - Sun, Jan 4
BLI
Bellingham
ISP
Islip
$2,148 Roundtrip, found 3 days ago
$2,148
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Dec 20 from Bellingham to Islip, returning Sun, Jan 4, priced at $2,148 found 3 days ago
Flights from Bellingham (BLI) to Islip (ISP)
Origin airport
Bellingham Intl.
Destination airport
MacArthur
Roundtrip price
$2,055
Distance
2440 mi

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 December. 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 2025. You can also book with separate airlines for your outbound and return journeys, from 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.

 

Frequently asked questions

How much does a flight from Bellingham Intl. Airport (BLI) to MacArthur Airport (ISP) cost?
Discover the latest flight deals from BLI to ISP by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BLI to ISP?
The cheapest flights from BLI to ISP are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BLI to ISP?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BLI to ISP. Sort your results by "Price (lowest to highest)" to snap up a great deal.
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.

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*Available to One Key members.