HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$104+ Cheap flights to Islip (ISP), NY

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
— ISP
May 22 — May 291
Fri 5/22
Fri 5/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights to Islip 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.

Flights to Islip, NY in 2026

Cheapest flights to Islip
Explore the most affordable flight options available to Islip. Find the lowest fares based on data from user searches, with prices last updated on April 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Fri 6/53:00 pm
LGA
-
ISP
1 stop19h 15m
Multiple Airlines
Fri 6/1210:48 am
ISP
-
LGA
1 stop11h 17m
Multiple Airlines
Deal found 4/22$245
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Wed 6/108:29 pm
LGA
-
ISP
1 stop13h 34m
Frontier
Tue 6/234:41 pm
ISP
-
LGA
1 stop23h 20m
Frontier
Deal found 4/22$265
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Fri 6/54:00 pm
EWR
-
ISP
2 stops18h 15m
Multiple Airlines
Fri 6/122:28 pm
ISP
-
EWR
1 stop5h 53m
Multiple Airlines
Deal found 4/22$270
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Sat 6/68:00 am
LGA
-
ISP
1 stop9h 29m
Multiple Airlines
Sat 6/136:09 pm
ISP
-
LGA
1 stop5h 12m
Multiple Airlines
Deal found 4/22$282
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Wed 6/108:29 pm
LGA
-
ISP
1 stop13h 34m
Multiple Airlines
Tue 6/235:27 pm
ISP
-
LGA
2 stops22h 34m
Multiple Airlines
Deal found 4/22$284
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Wed 6/1010:29 pm
EWR
-
ISP
2 stops35h 34m
Multiple Airlines
Tue 6/234:41 pm
ISP
-
EWR
1 stop17h 20m
Multiple Airlines
Deal found 4/22$303
This Kiwi.com deal was found by Cheapflights users on 4/20. 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.
Mon 5/184:00 pm
EWR
-
ISP
1 stop24h 47m
Multiple Airlines
Mon 5/256:43 pm
ISP
-
EWR
2 stops38h 16m
Multiple Airlines
Deal found 4/20$313
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Fri 6/193:56 pm
EWR
-
ISP
1 stop18h 07m
Multiple Airlines
Mon 6/228:43 pm
ISP
-
EWR
1 stop19h 46m
Multiple Airlines
Deal found 4/19$326
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Fri 6/193:29 pm
LGA
-
ISP
1 stop18h 34m
Multiple Airlines
Mon 6/2210:48 am
ISP
-
LGA
1 stop11h 29m
Multiple Airlines
Deal found 4/19$387
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 7/99:38 am
SWF
-
ISP
1 stop24h 25m
Multiple Airlines
Tue 7/145:27 pm
ISP
-
SWF
1 stop17h 58m
Multiple Airlines
Deal found 4/21$397
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Sun 7/129:38 am
SWF
-
ISP
1 stop24h 25m
Multiple Airlines
Tue 7/145:27 pm
ISP
-
SWF
1 stop17h 58m
Multiple Airlines
Deal found 4/21$402
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Fri 5/223:00 pm
LGA
-
ISP
1 stop19h 05m
Multiple Airlines
Sat 5/236:09 pm
ISP
-
LGA
1 stop5h 12m
Multiple Airlines
Deal found 4/22$410

Find flight deals to Islip

Find the latest flights to Islip in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data was last updated on April 22, 2026.

One-way from

$104
One-way flight from New York to Islip Long Island (ISP)
Search Deals

Cheapflights Fare Finder

 
Locate flights to Islip that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data was last updated on April 22, 2026.
Use the filters below to find and compare flights to Islip that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest round-trip

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Fri 6/5

3:00 pm-10:15 am

1 stop19h 15m

Islip Long Island

Fri 6/12

10:48 am-10:05 pm

1 stop11h 17m

$245

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Wed 6/10

8:29 pm-10:03 am

1 stop13h 34m

Islip Long Island

Tue 6/23

4:41 pm-4:01 pm

1 stop23h 20m

$265

NewarkIslip

EWR - ISP

EWRISP

Newark

Fri 6/5

4:00 pm-10:15 am

2 stops18h 15m

Islip Long Island

Fri 6/12

2:28 pm-8:21 pm

1 stop5h 53m

$270

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Sat 6/6

8:00 am-5:29 pm

1 stop9h 29m

Islip Long Island

Sat 6/13

6:09 pm-11:21 pm

1 stop5h 12m

$282

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Wed 6/10

8:29 pm-10:03 am

1 stop13h 34m

Islip Long Island

Tue 6/23

5:27 pm-4:01 pm

2 stops22h 34m

$284

NewarkIslip

EWR - ISP

EWRISP

Newark

Mon 5/18

4:00 pm-4:47 pm

1 stop24h 47m

Islip Long Island

Mon 5/25

6:43 pm-8:59 am

2 stops38h 16m

$313

NewarkIslip

EWR - ISP

EWRISP

Newark

Wed 6/10

6:59 pm-10:03 am

1 stop15h 04m

Islip Long Island

Tue 6/23

4:41 pm-10:01 am

1 stop17h 20m

$314

NewarkIslip

EWR - ISP

EWRISP

Newark

Fri 6/19

3:56 pm-10:03 am

1 stop18h 07m

Islip Long Island

Mon 6/22

8:43 pm-4:29 pm

1 stop19h 46m

$326

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Fri 6/19

3:29 pm-10:03 am

1 stop18h 34m

Islip Long Island

Mon 6/22

10:48 am-10:17 pm

1 stop11h 29m

$387

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Fri 5/22

3:00 pm-10:05 am

1 stop19h 05m

Islip Long Island

Sat 5/23

6:09 pm-11:21 pm

1 stop5h 12m

$410

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/18

Showing 1-10 of 47 resultsSorted by cheapest first
1
2
3
...
5

Compare providers for flights to Islip

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 to Islip in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: Out of all of the providers offering Islip, New York flight deals, Cheapflights users have found FlightHub to have the most accurate pricing on Cheapflights vs. their site about >95% of the time, users can find the same price on Islip, New York flight deals on Cheapflights and FlightHub. This is based on searches made for Islip, New York flights over the past month.
  • Most trusted provider: FlightHub is the most trusted provider by Cheapflights users offering Islip, New York flight deals. With a user feedback rating of 3 out of 3 stars (3 being the best), FlightHub has received the most positive sentiment from Cheapflights users searching for flights to Islip, New York. This is based on data collected from Cheapflights searches made over the past month.

Best time to book a flight to Islip

Have a flexible travel schedule? Discover the best time to fly to 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.

Cheapflights Insights

Everything you need to know about your flight to Islip

How long is the flight to Islip?

On average, a flight from New York to Islip takes 14 hours 14 minutes. Flights to Islip from other popular cities in USA will vary in length. Below are a few examples of popular routes and their flight times.

Rainfall in Islip by month

Plan your trip to Islip by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Islip ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip when rainfall is around 3.3 in.

Temperature in Islip by month

Plan your trip to Islip by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Islip, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

FAQs about flying to Islip

  • What airport do you fly into for flights to Islip?

    Travelers will need to book flights to Long Island (ISP) if they wish to fly to Islip. The Islip airport is 7.2 mi from the city center.

  • Can I find cheaper flights to Islip if I am willing to have layovers?

    Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to Islip on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Islip?

    Based on reviews from Cheapflights users, Frontier is rated the highest out of the airlines that fly to Islip.

  • What is the cheapest airport to fly to in Islip?

    Islip Long Island is currently the cheapest airport to fly to in Islip. One-way flights to Islip Long Island typically cost $24, while round-trip flights cost around $58.

  • How much is a round-trip flight to Islip?

    A round-trip flight to Islip will typically cost around $98, however they can be found for as little as $58.

  • Where does the fastest flight to Islip depart from?

    For those looking to save time traveling to Islip, Washington, D.C. offers the quickest one-way flight (1 hour 10 minutes).

  • Does Islip Long Island have rental cars?

    Yes. Those touching down at Islip Long Island can take advantage of the rental car services offered upon their arrival.

  • Are there hotels close to Islip Long Island?

    Yes. Islip Long Island has hotels nearby for those requiring accommodations. Clarion Hotel & Conference Center Ronkonkoma Macarthur Airport is the closest property to Islip Long Island (0.0 mi away from Islip Long Island).

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.