$134 Cheap Flights from Seattle Paine Field Intl. Airport (PAE) to Islip (ISP)

View $134 flight on Thu, Oct 30, 2025Opens in a new window

Popular airlines from Seattle Paine Field Intl. Airport (PAE) to MacArthur Airport (ISP)

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Cheap Flights from Seattle Paine Field Intl. Airport to Islip (PAE-ISP)

Prices were available within the past 7 days and start at $134 for one-way flights and $293 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Oct 17 - Thu, Oct 23
PAE
Seattle
ISP
Islip
$293 Roundtrip, found 3 days ago
$293
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Oct 17 from Seattle to Islip, returning Thu, Oct 23, priced at $293 found 3 days ago
Frontier Airlines
Fri, Oct 17 - Thu, Oct 23
PAE
Seattle
ISP
Islip
$369 Roundtrip, found 3 days ago
$369
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Oct 17 from Seattle to Islip, returning Thu, Oct 23, priced at $369 found 3 days ago
Flights from Seattle Paine Field Intl. Airport (PAE) to Islip (ISP)
Origin airport
Seattle Paine Field Intl. Airport
Destination airport
MacArthur
Roundtrip price
$292
Distance
2436 mi

Seattle Paine Field Intl. Airport to Islip Flights

The cheapest times to fly from Seattle Paine Field Intl. Airport 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 Seattle Paine Field Intl. Airport to Islip are during the month of October. You can find some of the cheapest flights from Seattle Paine Field Intl. Airport to Islip with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle Paine Field Intl. Airport to Islip

Sunday is one of the best days to book for cheap flights from Seattle Paine Field Intl. Airport 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 Seattle Paine Field Intl. Airport 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 Seattle Paine Field Intl. Airport to Islip in 2025. You can also book with separate airlines for your outbound and return journeys, from $134 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 Seattle Paine Field Intl. Airport 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 Seattle Paine Field Intl. Airport 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 Snohomish County - Paine Field Airport (PAE) to MacArthur Airport (ISP) cost?
Lock in a cheap one-way flight from $134 or cheap return flight from $293 from Snohomish County - Paine Field Airport (PAE) to MacArthur Airport (ISP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Snohomish County - Paine Field Airport (PAE) to MacArthur Airport (ISP)?
October is the cheapest month to fly from PAE to ISP. Traveling outside of peak seasons is often the key to finding better fares.
What is the cheapest airline that flies from Snohomish County - Paine Field Airport (PAE) to MacArthur Airport (ISP)?
To find the cheapest airline that'll fly you from PAE to ISP, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Snohomish County - Paine Field Airport (PAE) to MacArthur Airport (ISP)?
You'll need to catch a flight with a layover if you're traveling from Snohomish County - Paine Field Airport (PAE) to MacArthur Airport (ISP). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from PAE to ISP?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a number of factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Snohomish County - Paine Field Airport (PAE) to MacArthur Airport (ISP)?
To avoid potential delays on the Snohomish County - Paine Field Airport (PAE) to MacArthur Airport (ISP) route, fly before 3 PM. Later flights are 22% more likely to be canceled.**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 Snohomish County - Paine Field Airport (PAE) to MacArthur Airport (ISP) last-minute?
Last-minute fares from PAE to ISP are typically more expensive. To secure the best prices, start looking for flights well ahead of time. That said, if your travel plans are flexible, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a PAE to ISP flight and hotel package?
Compared with arranging hotels and flights separately, booking a PAE to ISP flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place will take the stress out of planning your trip. Simply pick your flights and choose from our extensive range of stays, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Snohomish County - Paine Field Airport (PAE) to MacArthur Airport (ISP)?
In most cases, you can modify or cancel your PAE to ISP flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you'd like further details, go to our Customer Service portal.

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*Available to One Key members.