$485+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — ISP
Dec 11 — Dec 181
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
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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 November 11, 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 November 11, 2026.
This Expedia deal was found by Cheapflights users on 11/9. 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 12/88:55 pm -
1 stop12h 52m
Tue 12/1510:39 am -
1 stop10h 21m
Deal found 11/9![JetBlue logo]()
$485
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 12/106:30 am -
1 stop11h 00m
Thu 12/1710:57 am -
2 stops10h 02m
Deal found 11/10![Multiple Airlines logo]()
$582
This JetBlue deal was found by Cheapflights users on 11/7. 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.
Sat 12/52:29 pm -
1 stop8h 11m
Tue 12/810:39 am -
1 stop10h 21m
Deal found 11/7![JetBlue logo]()
$593
This Expedia deal was found by Cheapflights users on 11/8. 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.
Thu 12/176:00 am -
1 stop11h 42m
Sun 12/206:00 am -
1 stop14h 00m
Deal found 11/8![JetBlue logo]()
$701
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/66:30 am -
1 stop10h 44m
Sun 12/1310:57 am -
2 stops10h 01m
Deal found 11/8![Multiple Airlines logo]()
$782
This Expedia deal was found by Cheapflights users on 11/10. 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 11/187:40 am -
1 stop13h 57m
Fri 11/276:00 am -
1 stop13h 50m
Deal found 11/10![JetBlue logo]()
$980
This Expedia deal was found by Cheapflights users on 11/8. 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.
Sun 12/68:55 pm -
1 stop12h 52m
Sun 12/136:00 am -
1 stop8h 59m
Deal found 11/8![JetBlue logo]()
$988
This Expedia deal was found by Cheapflights users on 11/10. 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 11/188:59 pm -
2 stops20h 32m
Fri 11/276:00 am -
1 stop13h 50m
Deal found 11/10![Multiple Airlines logo]()
$1,082
This Mytrip deal was found by Cheapflights users on 11/10. 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.
Wed 11/188:59 pm -
2 stops20h 32m
Fri 11/274:40 pm -
2 stops26h 55m
Deal found 11/10![Frontier logo]()
$1,155
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 November 11, 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 November 11, 2026.
This Expedia deal was found by Cheapflights users on 11/9. 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 12/88:55 pm -
1 stop12h 52m
Tue 12/1510:39 am -
1 stop10h 21m
Deal found 11/9![JetBlue logo]()
$485
This Expedia deal was found by Cheapflights users on 11/10. 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.
Thu 12/106:30 am -
1 stop11h 00m
Thu 12/176:00 am -
1 stop14h 00m
Deal found 11/10![Multiple Airlines logo]()
$596
This JetBlue deal was found by Cheapflights users on 11/7. 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.
Sat 12/52:29 pm -
1 stop8h 11m
Tue 12/810:39 am -
1 stop10h 21m
Deal found 11/7![JetBlue logo]()
$593
This Expedia deal was found by Cheapflights users on 11/8. 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.
Thu 12/176:00 am -
1 stop11h 42m
Sun 12/206:00 am -
1 stop14h 00m
Deal found 11/8![JetBlue logo]()
$701
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/66:30 am -
1 stop10h 44m
Sun 12/1310:57 am -
2 stops10h 01m
Deal found 11/8![Multiple Airlines logo]()
$782
This JetBlue deal was found by Cheapflights users on 11/10. 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.
Thu 1/211:29 pm -
1 stop8h 27m
Mon 1/251:36 pm -
1 stop8h 20m
Deal found 11/10![JetBlue logo]()
$728
This Expedia deal was found by Cheapflights users on 11/7. 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.
Sat 12/266:00 am -
1 stop11h 42m
Tue 12/2910:42 am -
1 stop11h 17m
Deal found 11/7![JetBlue logo]()
$1,602
Last-minute flights from LaGuardia to IslipDiscover last-minute flight deals from LaGuardia to Islip. Data last updated November 11, 2026 and is based on user searches.
Discover last-minute flight deals from LaGuardia to Islip. Data last updated November 11, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 11/10. 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 11/187:40 am -
1 stop13h 57m
Fri 11/276:00 am -
1 stop13h 50m
Deal found 11/10![JetBlue logo]()
$980
This Expedia deal was found by Cheapflights users on 11/10. 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 11/188:59 pm -
2 stops20h 32m
Fri 11/276:00 am -
1 stop13h 50m
Deal found 11/10![Multiple Airlines logo]()
$1,082
This Mytrip deal was found by Cheapflights users on 11/10. 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.
Wed 11/188:59 pm -
2 stops20h 32m
Fri 11/274:40 pm -
2 stops26h 55m
Deal found 11/10![Frontier logo]()
$1,155
This JetBlue deal was found by Cheapflights users on 11/7. 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.
Sat 12/52:29 pm -
1 stop8h 11m
Tue 12/810:39 am -
1 stop10h 21m
Deal found 11/7![JetBlue logo]()
$593
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 12/66:30 am -
1 stop10h 44m
Sun 12/1310:57 am -
2 stops10h 01m
Deal found 11/8![Multiple Airlines logo]()
$782
This Expedia deal was found by Cheapflights users on 11/8. 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.
Sun 12/68:55 pm -
1 stop12h 52m
Sun 12/136:00 am -
1 stop8h 59m
Deal found 11/8![JetBlue logo]()
$988
This Expedia deal was found by Cheapflights users on 11/9. 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 12/88:55 pm -
1 stop12h 52m
Tue 12/1510:39 am -
1 stop10h 21m
Deal found 11/9![JetBlue logo]()
$485
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 12/106:30 am -
1 stop11h 00m
Thu 12/1710:57 am -
2 stops10h 02m
Deal found 11/10![Multiple Airlines logo]()
$582
This Expedia deal was found by Cheapflights users on 11/8. 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.
Thu 12/176:00 am -
1 stop11h 42m
Sun 12/206:00 am -
1 stop14h 00m
Deal found 11/8![JetBlue logo]()
$701
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 November 11, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $485 (Expedia) |
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 November 11, 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
Tue 12/8
8:55 pm-9:47 am
1 stop12h 52m
Islip Long Island
Tue 12/15
10:39 am-9:00 pm
1 stop10h 21m
$485
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Sat 12/5
2:29 pm-10:40 pm
1 stop8h 11m
Islip Long Island
Tue 12/8
10:39 am-9:00 pm
1 stop10h 21m
$593
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Thu 12/10
6:30 am-5:30 pm
1 stop11h 00m
Islip Long Island
Thu 12/17
6:00 am-8:00 pm
1 stop14h 00m
$596
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Thu 12/17
6:00 am-5:42 pm
1 stop11h 42m
Islip Long Island
Sun 12/20
6:00 am-8:00 pm
1 stop14h 00m
$701
Quickest round-trip
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Thu 1/21
1:29 pm-9:56 pm
1 stop8h 27m
Islip Long Island
Mon 1/25
1:36 pm-9:56 pm
1 stop8h 20m
$728
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Sun 12/6
6:30 am-5:14 pm
1 stop10h 44m
Islip Long Island
Sun 12/13
10:57 am-8:58 pm
2 stops10h 01m
$782
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Sat 12/26
6:00 am-5:42 pm
1 stop11h 42m
Islip Long Island
Tue 12/29
10:42 am-9:59 pm
1 stop11h 17m
$1,602
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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