$166+ Cheap flights from Islip, NY to New Windsor (ISP - SWF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SWF
Nov 27 — Dec 41
1 adult, Economy
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Find cheap flights from Islip to Stewart with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Islip to Stewart
Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Stewart (SWF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $272 (Kiwi.com) |
One-way from | $166 (Kiwi.com) |
Find flight deals from Islip to Stewart
Best flights from Islip to StewartDiscover carefully curated flight deals from Islip to Stewart that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.
Discover carefully curated flight deals from Islip to Stewart that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/297:26 pmISP - SWF
2 stops16h 05mBreeze Airways
Mon 2/912:11 pmSWF - ISP
1 stop7h 54mBreeze Airways
Deal found 10/28![Breeze Airways logo]()
$272
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Stewart that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
Use the filters below to find and compare flights from Islip to New Windsor that are best for you.
Fly from
Islip
Fly to
Stewart
Route
Depart
Return
Price
IslipNew Windsor
ISP - SWF
ISPSWF
Islip Long Island
Thu 1/29
7:26 pm-11:31 am
2 stops16h 05m
New Windsor Stewart
Mon 2/9
12:11 pm-8:05 pm
1 stop7h 54m
$272
IslipNew Windsor
ISP - SWF
ISPSWF
Islip Long Island
Wed 12/17
6:00 am-11:03 am
1 stop29h 03m
$166
Compare providers for flights from Islip to Stewart
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Stewart in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Islip, New York-New Windsor flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Islip, New York-New Windsor flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Islip, New York-New Windsor flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Islip, New York-New Windsor flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-New Windsor flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Islip to Stewart
Have a flexible travel schedule? Discover the best time to fly to Stewart from Islip with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from Islip to Stewart. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near New Windsor?
Book flights to New Windsor if you plan to visit one of these locationsKingston