$298+ Cheap flights from LaGuardia, NY (LGA) to Islip, NY (ISP)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — ISP
Nov 3 — Nov 101
Round-trip
1 adult, Economy
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Find cheap flights from LaGuardia 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.Cheap flight deals from LaGuardia to Islip
Cheapest
Best
Last-minute
One-way
Cheapest flights from LaGuardia to IslipExplore the most affordable flight options available from LaGuardia to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 4, 2026.
Explore the most affordable flight options available from LaGuardia to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 4, 2026.
This JetBlue deal was found by Cheapflights users on 9/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:00 pm -
1 stop9h 37m
Wed 10/216:00 am -
1 stop7h 33m
Deal found 9/29![JetBlue logo]()
$681
This Expedia deal was found by Cheapflights users on 9/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:40 am -
1 stop13h 57m
Wed 11/46:00 am -
1 stop7h 34m
Deal found 9/30![JetBlue logo]()
$714
This Expedia deal was found by Cheapflights users on 9/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:59 pm -
2 stops20h 32m
Wed 11/46:00 am -
1 stop8h 59m
Deal found 9/30![Multiple Airlines logo]()
$754
This Mytrip deal was found by Cheapflights users on 10/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:43 pm -
2 stops22h 15m
Thu 10/86:25 pm -
2 stops21h 49m
Deal found 10/2![Frontier logo]()
$996
This FlightHub deal was found by Cheapflights users on 10/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:55 pm -
1 stop14h 51m
Sat 11/289:40 am -
1 stop10h 10m
Deal found 10/3![JetBlue logo]()
$1,082
This Mytrip deal was found by Cheapflights users on 10/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:30 pm -
2 stops22h 15m
Sat 11/284:43 pm -
2 stops26h 52m
Deal found 10/3![Frontier logo]()
$1,105
This Expedia deal was found by Cheapflights users on 10/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:30 pm -
2 stops19h 15m
Sat 11/289:40 am -
1 stop11h 53m
Deal found 10/3![Multiple Airlines logo]()
$1,135
This United deal was found by Cheapflights users on 10/1. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:29 pm -
2 stops15h 27m
Wed 10/710:05 am -
2 stops13h 25m
Deal found 10/1![Multiple Airlines logo]()
$1,175
This JetBlue deal was found by Cheapflights users on 10/1. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/54:00 pm -
1 stop7h 22m
Thu 10/83:07 pm -
1 stop6h 52m
Deal found 10/1![JetBlue logo]()
$1,198
This Mytrip deal was found by Cheapflights users on 10/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:30 pm -
2 stops19h 15m
Sat 11/284:43 pm -
2 stops26h 52m
Deal found 10/1![Frontier logo]()
$1,209
Best flights from LaGuardia to IslipDiscover carefully curated flight deals from LaGuardia to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 4, 2026.
Discover carefully curated flight deals from LaGuardia to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 4, 2026.
This JetBlue deal was found by Cheapflights users on 9/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:00 pm -
1 stop9h 37m
Wed 10/216:00 am -
1 stop7h 33m
Deal found 9/29![JetBlue logo]()
$681
This Expedia deal was found by Cheapflights users on 10/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:30 pm -
2 stops19h 15m
Sat 11/289:40 am -
1 stop11h 53m
Deal found 10/1![Multiple Airlines logo]()
$1,135
This Expedia deal was found by Cheapflights users on 9/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:40 am -
1 stop13h 57m
Wed 11/46:00 am -
1 stop7h 34m
Deal found 9/30![JetBlue logo]()
$714
This Expedia deal was found by Cheapflights users on 10/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:30 pm -
2 stops19h 15m
Sat 11/289:40 am -
1 stop11h 53m
Deal found 10/3![Multiple Airlines logo]()
$1,135
This FlightHub deal was found by Cheapflights users on 10/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:55 pm -
1 stop14h 51m
Sat 11/289:40 am -
1 stop10h 10m
Deal found 10/3![JetBlue logo]()
$1,082
This Expedia deal was found by Cheapflights users on 10/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2412:00 pm -
1 stop10h 39m
Sat 11/289:40 am -
1 stop11h 53m
Deal found 10/1![JetBlue logo]()
$1,238
This Expedia deal was found by Cheapflights users on 9/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/268:59 pm -
1 stop11h 56m
Sun 3/289:45 am -
1 stop11h 45m
Deal found 9/29![JetBlue logo]()
$1,419
Last-minute flights from LaGuardia to IslipDiscover last-minute flight deals from LaGuardia to Islip. Data last updated October 4, 2026 and is based on user searches.
Discover last-minute flight deals from LaGuardia to Islip. Data last updated October 4, 2026 and is based on user searches.
This United deal was found by Cheapflights users on 10/1. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:29 pm -
2 stops15h 27m
Wed 10/710:05 am -
2 stops13h 25m
Deal found 10/1![Multiple Airlines logo]()
$1,175
This JetBlue deal was found by Cheapflights users on 10/1. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/54:00 pm -
1 stop7h 22m
Thu 10/83:07 pm -
1 stop6h 52m
Deal found 10/1![JetBlue logo]()
$1,198
This Mytrip deal was found by Cheapflights users on 10/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:43 pm -
2 stops22h 15m
Thu 10/86:25 pm -
2 stops21h 49m
Deal found 10/2![Frontier logo]()
$996
This JetBlue deal was found by Cheapflights users on 9/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:00 pm -
1 stop9h 37m
Wed 10/216:00 am -
1 stop7h 33m
Deal found 9/29![JetBlue logo]()
$681
This Expedia deal was found by Cheapflights users on 9/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:40 am -
1 stop13h 57m
Wed 11/46:00 am -
1 stop7h 34m
Deal found 9/30![JetBlue logo]()
$714
This Expedia deal was found by Cheapflights users on 9/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:59 pm -
2 stops20h 32m
Wed 11/46:00 am -
1 stop8h 59m
Deal found 9/30![Multiple Airlines logo]()
$754
This FlightHub deal was found by Cheapflights users on 10/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:55 pm -
1 stop14h 51m
Sat 11/289:40 am -
1 stop10h 10m
Deal found 10/3![JetBlue logo]()
$1,082
This Mytrip deal was found by Cheapflights users on 10/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:30 pm -
2 stops22h 15m
Sat 11/284:43 pm -
2 stops26h 52m
Deal found 10/3![Frontier logo]()
$1,105
This Expedia deal was found by Cheapflights users on 10/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:30 pm -
2 stops19h 15m
Sat 11/289:40 am -
1 stop11h 53m
Deal found 10/3![Multiple Airlines logo]()
$1,135
This Mytrip deal was found by Cheapflights users on 10/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:30 pm -
2 stops19h 15m
Sat 11/284:43 pm -
2 stops26h 52m
Deal found 10/1![Frontier logo]()
$1,209
One-way flights from LaGuardia to IslipSearch for one-way flight options from LaGuardia to Islip. Find affordable one-way fares based on user searches. Data last updated October 4, 2026.
Search for one-way flight options from LaGuardia to Islip. Find affordable one-way fares based on user searches. Data last updated October 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/4. 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 12/316:00 am -
2 stops32h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 10/4. 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 12/316:00 am -
1 stop27h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Frontier logo]()
$301
Find flight deals from LaGuardia to Islip
Discover tips and strategies to find the most affordable flight options for your journey from LaGuardia (LGA) to Islip (ISP). 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 4, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $681 (JetBlue) |
One-way from | $298 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from LaGuardia to Islip 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 7,457,451 searches. Data last updated October 4, 2026.
Use the filters below to find and compare flights from New York LaGuardia Airport to Islip that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Thu 12/31
6:00 am-2:22 pm
2 stops32h 22m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$298
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Thu 12/31
6:00 am-9:01 am
1 stop27h 01m
Islip Long Island
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$301
Quickest round-trip
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Tue 10/20
12:00 pm-9:37 pm
1 stop9h 37m
Islip Long Island
Wed 10/21
6:00 am-1:33 pm
1 stop7h 33m
$681
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Wed 10/28
7:40 am-9:37 pm
1 stop13h 57m
Islip Long Island
Wed 11/4
6:00 am-1:34 pm
1 stop7h 34m
$714
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Mon 11/23
8:55 pm-11:46 am
1 stop14h 51m
Islip Long Island
Sat 11/28
9:40 am-7:50 pm
1 stop10h 10m
$1,082
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Tue 11/24
8:30 pm-3:45 pm
2 stops19h 15m
Islip Long Island
Sat 11/28
9:40 am-9:33 pm
1 stop11h 53m
$1,135
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Mon 11/23
8:30 pm-3:45 pm
2 stops19h 15m
Islip Long Island
Sat 11/28
9:40 am-9:33 pm
1 stop11h 53m
$1,135
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Tue 11/24
12:00 pm-10:39 pm
1 stop10h 39m
Islip Long Island
Sat 11/28
9:40 am-9:33 pm
1 stop11h 53m
$1,238
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Fri 3/26
8:59 pm-8:55 am
1 stop11h 56m
Islip Long Island
Sun 3/28
9:45 am-9:30 pm
1 stop11h 45m
$1,419
Sorted by cheapest first
- Most accurate provider: When it comes to deals on New York LaGuardia Airport-Islip, New York flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on New York LaGuardia Airport-Islip, New York flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from New York LaGuardia Airport-Islip, New York flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on New York LaGuardia Airport-Islip, New York flights, Cheapflights users trust Expedia the most. Expedia 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 New York LaGuardia Airport-Islip, New York 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 LaGuardia to Islip
Have a flexible travel schedule? Discover the best time to fly to Islip from LaGuardia with our price prediction graph.
LGA-ISP
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 LaGuardia to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Book flights to Islip if you plan to visit one of these locationsRiverhead
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