$425 Cheap Flights from Saranac Lake (SLK) to Islip (ISP)

View $425 flight on Fri, Aug 22, 2025Opens in a new window

Popular airlines from Saranac Lake, NY (SLK-Adirondack Regional) to MacArthur Airport (ISP)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Saranac Lake to Islip (SLK-ISP)

Prices were available within the past 7 days and start at $425 for one-way flights and $869 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Cape Air
Fri, Aug 22 - Sun, Aug 24
SLK
Saranac Lake
ISP
Islip
$869 Roundtrip, found 3 days ago
$869
Roundtrip
found 3 days ago
Select Cape Air flight, departing Fri, Aug 22 from Saranac Lake to Islip, returning Sun, Aug 24, priced at $869 found 3 days ago
Flights from Saranac Lake (SLK) to Islip (ISP)
Origin airport
Adirondack Regional
Destination airport
MacArthur
Roundtrip price
$869
Distance
254 mi

Saranac Lake to Islip Flights

The cheapest times to fly from Saranac Lake 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 Saranac Lake to Islip are during the month of August. You can find some of the cheapest flights from Saranac Lake to Islip with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Saranac Lake to Islip

Sunday is one of the best days to book for cheap flights from Saranac Lake 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 Saranac Lake 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 Saranac Lake to Islip in 2025. You can also book with separate airlines for your outbound and return journeys, from $425 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 Saranac Lake 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 Saranac Lake 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 Adirondack Regional Airport (SLK) to MacArthur Airport (ISP) cost?
Discover the latest flight deals from SLK 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 SLK to ISP?
The cheapest flights from SLK 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 SLK to ISP?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SLK to ISP. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Adirondack Regional Airport (SLK) to MacArthur Airport (ISP)?
You'll have to book a flight with a layover if you're traveling from Adirondack Regional Airport (SLK) to MacArthur Airport (ISP). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from SLK to ISP?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Adirondack Regional Airport (SLK) to MacArthur Airport (ISP)?
To avoid possible delays on the Adirondack Regional Airport (SLK) to MacArthur Airport (ISP) route, travel before 3 PM. Departures after this hour 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.
What airports do you fly into for Islip from Adirondack Regional Airport (SLK)?
Compare your flight options from Adirondack Regional Airport (SLK) to John F. Kennedy Intl. Airport (JFK). This is the only Islip airport you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Adirondack Regional Airport (SLK) to MacArthur Airport (ISP) last-minute?
Holding off until just before your trip to book a flight from SLK to ISP generally means paying more. While you may come across some last-minute deals, they're not always guaranteed. Be flexible with your travel plans for the best chance of scoring a bargain.
Is it cheaper to book a SLK to ISP flight and hotel package?
Compared with arranging flights and hotels separately, booking a SLK to ISP flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the hassle out of travel planning. Simply pick your flights and choose from our extensive range of hotels, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Adirondack Regional Airport (SLK) to MacArthur Airport (ISP)?
You can usually cancel or reschedule your SLK to ISP flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.