$209+ Cheap flights from LaGuardia, NY (LGA) to Islip, NY (ISP)
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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — ISP
Oct 1 — Oct 81
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
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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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Best
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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 September 1, 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 September 1, 2026.
This JetBlue deal was found by Cheapflights users on 8/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:59 am -
1 stop15h 23m
Sat 9/267:00 am -
1 stop16h 09m
Deal found 8/28![JetBlue logo]()
$554
This FlightHub deal was found by Cheapflights users on 8/31. 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.
Tue 9/291:29 pm -
1 stop9h 53m
Tue 10/67:00 am -
1 stop14h 28m
Deal found 8/31![JetBlue logo]()
$571
This Expedia deal was found by Cheapflights users on 8/29. 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.
Sat 9/267:29 am -
1 stop8h 07m
Sat 10/37:00 am -
1 stop7h 59m
Deal found 8/29![JetBlue logo]()
$607
This JetBlue deal was found by Cheapflights users on 8/31. 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 9/284:00 pm -
1 stop7h 22m
Tue 9/297:00 am -
1 stop7h 59m
Deal found 8/31![JetBlue logo]()
$688
This United deal was found by Cheapflights users on 8/31. 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.
Tue 9/2910:25 am -
2 stops9h 50m
Tue 10/610:05 am -
2 stops13h 25m
Deal found 8/31![Multiple Airlines logo]()
$805
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:39 pm -
2 stops23h 35m
Sun 9/67:09 pm -
1 stop22h 36m
Deal found 9/1![Frontier logo]()
$894
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 8/288:29 pm -
1 stop13h 24m
Sat 8/2911:57 am -
2 stops11h 17m
Deal found 8/27![Multiple Airlines logo]()
$899
This JetBlue deal was found by Cheapflights users on 8/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1612:30 pm -
1 stop9h 07m
Fri 11/2712:00 pm -
1 stop9h 01m
Deal found 8/28![JetBlue logo]()
$1,078
This Priceline deal was found by Cheapflights users on 8/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:29 pm -
1 stop9h 53m
Sun 9/137:00 am -
1 stop7h 59m
Deal found 8/31![JetBlue logo]()
$1,083
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 September 1, 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 September 1, 2026.
This JetBlue deal was found by Cheapflights users on 8/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:59 am -
1 stop15h 23m
Sat 9/267:00 am -
1 stop16h 09m
Deal found 8/28![JetBlue logo]()
$554
This United deal was found by Cheapflights users on 8/31. 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.
Tue 9/2910:25 am -
2 stops9h 50m
Tue 10/610:05 am -
2 stops13h 25m
Deal found 8/31![Multiple Airlines logo]()
$805
This FlightHub deal was found by Cheapflights users on 8/31. 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.
Tue 9/291:29 pm -
1 stop9h 53m
Tue 10/67:00 am -
1 stop14h 28m
Deal found 8/31![JetBlue logo]()
$571
This Priceline deal was found by Cheapflights users on 8/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/24:15 pm -
1 stop7h 07m
Tue 10/67:00 am -
1 stop7h 42m
Deal found 8/28![JetBlue logo]()
$607
This JetBlue deal was found by Cheapflights users on 8/30. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:00 pm -
1 stop7h 22m
Tue 9/297:00 am -
1 stop7h 59m
Deal found 8/30![JetBlue logo]()
$688
This Expedia deal was found by Cheapflights users on 8/29. 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.
Sat 9/267:29 am -
1 stop8h 07m
Sat 10/37:00 am -
1 stop7h 59m
Deal found 8/29![JetBlue logo]()
$1,027
This JetBlue deal was found by Cheapflights users on 8/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1612:30 pm -
1 stop9h 07m
Fri 11/2712:00 pm -
1 stop9h 01m
Deal found 8/28![JetBlue logo]()
$1,078
This Priceline deal was found by Cheapflights users on 8/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:29 pm -
1 stop9h 53m
Sun 9/137:00 am -
1 stop7h 59m
Deal found 8/31![JetBlue logo]()
$1,083
Last-minute flights from LaGuardia to IslipDiscover last-minute flight deals from LaGuardia to Islip. Data last updated September 1, 2026 and is based on user searches.
Discover last-minute flight deals from LaGuardia to Islip. Data last updated September 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:39 pm -
2 stops23h 35m
Sun 9/67:09 pm -
1 stop22h 36m
Deal found 9/1![Frontier logo]()
$894
This Expedia deal was found by Cheapflights users on 9/1. 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.
Wed 9/28:59 pm -
1 stop12h 06m
Sun 9/66:00 am -
1 stop7h 32m
Deal found 9/1![JetBlue logo]()
$1,188
This Priceline deal was found by Cheapflights users on 8/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/101:29 pm -
1 stop9h 53m
Sun 9/137:00 am -
1 stop7h 59m
Deal found 8/31![JetBlue logo]()
$1,083
This United deal was found by Cheapflights users on 8/31. 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.
Thu 9/106:00 am -
2 stops7h 30m
Sun 9/135:34 pm -
2 stops16h 05m
Deal found 8/31![Multiple Airlines logo]()
$1,184
This JetBlue deal was found by Cheapflights users on 8/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:59 am -
1 stop15h 23m
Sat 9/267:00 am -
1 stop16h 09m
Deal found 8/28![JetBlue logo]()
$554
This Expedia deal was found by Cheapflights users on 8/29. 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.
Sat 9/267:29 am -
1 stop8h 07m
Sat 10/37:00 am -
1 stop7h 59m
Deal found 8/29![JetBlue logo]()
$607
This JetBlue deal was found by Cheapflights users on 8/31. 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 9/284:00 pm -
1 stop7h 22m
Tue 9/297:00 am -
1 stop7h 59m
Deal found 8/31![JetBlue logo]()
$688
This FlightHub deal was found by Cheapflights users on 8/31. 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.
Tue 9/291:29 pm -
1 stop9h 53m
Tue 10/67:00 am -
1 stop14h 28m
Deal found 8/31![JetBlue logo]()
$571
This United deal was found by Cheapflights users on 8/31. 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.
Tue 9/2910:25 am -
2 stops9h 50m
Tue 10/610:05 am -
2 stops13h 25m
Deal found 8/31![Multiple Airlines logo]()
$805
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 September 1, 2026.
Search for one-way flight options from LaGuardia to Islip. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 9/216:15 am -
2 stops29h 05m
Deal found 8/27![Multiple Airlines logo]()
$209
This Priceline deal was found by Cheapflights users on 8/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2612:00 pm -
1 stop10h 04m
Deal found 8/31![JetBlue logo]()
$377
This Priceline deal was found by Cheapflights users on 8/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/214:00 pm -
1 stop7h 22m
Deal found 8/27![JetBlue logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 11/268:15 pm -
2 stops18h 07m
Deal found 8/31![Multiple Airlines logo]()
$404
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 September 1, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $554 (JetBlue) |
One-way from | $209 (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 September 1, 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
Fri 9/18
7:59 am-11:22 pm
1 stop15h 23m
Islip Long Island
Sat 9/26
7:00 am-11:09 pm
1 stop16h 09m
$554
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Tue 9/29
1:29 pm-11:22 pm
1 stop9h 53m
Islip Long Island
Tue 10/6
7:00 am-9:28 pm
1 stop14h 28m
$571
Quickest round-trip
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Fri 10/2
4:15 pm-11:22 pm
1 stop7h 07m
Islip Long Island
Tue 10/6
7:00 am-2:42 pm
1 stop7h 42m
$607
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Mon 9/28
4:00 pm-11:22 pm
1 stop7h 22m
Islip Long Island
Tue 9/29
7:00 am-2:59 pm
1 stop7h 59m
$688
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Tue 9/29
10:25 am-8:15 pm
2 stops9h 50m
Islip Long Island
Tue 10/6
10:05 am-11:30 pm
2 stops13h 25m
$805
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Sat 9/26
7:29 am-3:36 pm
1 stop8h 07m
Islip Long Island
Sat 10/3
7:00 am-2:59 pm
1 stop7h 59m
$1,027
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Mon 11/16
12:30 pm-9:37 pm
1 stop9h 07m
Islip Long Island
Fri 11/27
12:00 pm-9:01 pm
1 stop9h 01m
$1,078
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Thu 9/10
1:29 pm-11:22 pm
1 stop9h 53m
Islip Long Island
Sun 9/13
7:00 am-2:59 pm
1 stop7h 59m
$1,083
Cheapest one-way
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Mon 9/21
6:15 am-11:20 am
2 stops29h 05m
$209
Quickest one-way
New YorkIslip
LGA New York LaGuardia - ISP Islip Long Island
LGAISP
New York LaGuardia
Thu 11/26
12:00 pm-10:04 pm
1 stop10h 04m
$377
Showing 1-10 of 11 resultsSorted 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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