ISP

$124 Find Cheap Flights from New York State to Islip

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Islip departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Flight Deals

Cheap Flights from New York to Islip

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from New York to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from New York to Islip

Thu, Sep 25 - Fri, Sep 26
Frontier Logo
1:23 pm - 9:04 amBUF-ISP
19h 41m1 stop
Frontier Logo
5:05 pm - 6:14 pmISP-BUF
25h 09m1 stop
$175Frontier
Find Deal
Fri, Sep 26 - Sat, Sep 27
Frontier Logo
6:59 pm - 10:55 amBUF-ISP
15h 56m1 stop
Frontier Logo
5:18 pm - 12:38 pmISP-BUF
19h 20m1 stop
$197Frontier
Find Deal
Thu, Oct 23 - Sun, Oct 26
 Logo
11:05 am - 10:37 amEWR-ISP
23h 32m1 stop
 Logo
9:47 pm - 9:03 amISP-EWR
11h 16m1 stop
Sat, Sep 13 - Sun, Sep 14
 Logo
5:30 pm - 10:40 amEWR-ISP
17h 10m1 stop
 Logo
5:12 pm - 9:58 amISP-EWR
16h 46m2 stops
Wed, Sep 10 - Sat, Sep 13
JetBlue Logo
8:00 am - 3:23 pmBUF-ISP
7h 23m1 stop
JetBlue Logo
11:35 am - 10:20 pmISP-BUF
10h 45m1 stop
$299JetBlue
Find Deal
Fri, Sep 19 - Sun, Sep 21
Southwest Logo
4:25 pm - 10:55 pmBUF-ISP
6h 30m1 stop
Southwest Logo
2:30 pm - 12:05 amISP-BUF
9h 35m2 stops
$308Southwest
Find Deal
Tue, Sep 30 - Wed, Oct 8
Southwest Logo
4:05 pm - 10:05 pmALB-ISP
6h 00m1 stop
Southwest Logo
6:00 am - 12:30 pmISP-ALB
6h 30m1 stop
$317Southwest
Find Deal
Sat, Nov 1 - Sun, Nov 2
JetBlue Logo
9:30 pm - 10:55 amLGA-ISP
13h 25m1 stop
JetBlue Logo
1:57 pm - 11:02 pmISP-LGA
9h 05m1 stop
$323JetBlue
Find Deal
Fri, Oct 3 - Sun, Oct 5
Breeze Airways Logo
12:24 pm - 8:07 pmSWF-ISP
7h 43m1 stop
Breeze Airways Logo
7:36 pm - 11:44 amISP-SWF
16h 08m2 stops
$546Breeze Airways
Find Deal
Fri, Nov 21 - Sun, Nov 23
Breeze Airways Logo
6:57 pm - 8:05 pmROC-ISP
25h 08m2 stops
Breeze Airways Logo
2:19 pm - 6:17 pmISP-ROC
27h 58m3 stops
$1,082Breeze Airways
Find Deal
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$124
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Buffalo to Islip

FAQs for booking flights from New York State to Islip

  • How does KAYAK find such low prices on flights from New York State to Islip?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from New York State to Islip.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from New York State to Islip?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from New York State is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from New York State to Islip?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to New York State with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from New York State to Islip?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from New York State up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from New York to Islip

 
Need help choosing which airline to fly with from New York to Islip? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4242 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

2.0 MediocreMike, Aug 2025AUS - BWI
Read more Southwest reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

Southwest's seats are the least comfortable I have ever sat in.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Southwest like most American domestic airlines, is a mediocre airline. But it is among the cheapest. Oh well.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Other than a bit of a delay, everything was good. Again, the boarding process and picking seats is the only thing I don't enjoy.

If we are going to have to pay for luggage, make it easier to do. Put something on the app during check-in so I don't need to do it at the kiosk. I've done it twice recently and I ended up having to pay at the desk because something went wrong at the kiosk in Tampa.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Traveling to a place near Islip?

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Riverhead
Amagansett

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