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Islip

$139+ Cheap flights from Los Angeles to Islip, NY (LAX - 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
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Find cheap flights from Los Angeles to Islip with Cheapflights

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Cheap flight deals from Los Angeles to Islip

Cheapest flights from Los Angeles to Islip
Explore the most affordable flight options available from Los Angeles to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.

This CheapOair deal was found by Cheapflights users on 7/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:56 pm
LAX
-
ISP
1 stop8h 37m
Frontier
Mon 9/144:13 pm
ISP
-
LAX
1 stop29h 35m
Frontier
Deal found 7/24$293
This Frontier deal was found by Cheapflights users on 7/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Tue 8/2510:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Deal found 7/25$310
This CheapOair deal was found by Cheapflights users on 7/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:40 pm
LAX
-
ISP
1 stop16h 18m
Frontier
Sun 9/135:43 pm
ISP
-
LAX
1 stop27h 27m
Frontier
Deal found 7/26$311
This Frontier deal was found by Cheapflights users on 7/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Thu 8/2710:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Deal found 7/25$312
This Southwest deal was found by Cheapflights users on 7/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:40 pm
LAX
-
ISP
2 stops10h 00m
Southwest
Mon 9/144:05 pm
ISP
-
LAX
1 stop9h 40m
Southwest
Deal found 7/24$316
This CheapOair deal was found by Cheapflights users on 7/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:40 pm
LAX
-
ISP
1 stop16h 18m
Frontier
Mon 9/285:43 pm
ISP
-
LAX
1 stop27h 27m
Frontier
Deal found 7/26$321
This Southwest deal was found by Cheapflights users on 7/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:55 am
LAX
-
ISP
1 stop9h 15m
Southwest
Mon 9/214:05 pm
ISP
-
LAX
1 stop9h 40m
Southwest
Deal found 7/29$329
This Frontier deal was found by Cheapflights users on 7/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Fri 8/2810:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Deal found 7/25$330
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:35 pm
LAX
-
ISP
1 stop8h 05m
Southwest
Thu 9/241:15 pm
ISP
-
LAX
2 stops11h 05m
Southwest
Deal found 7/27$334
This Frontier deal was found by Cheapflights users on 7/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Tue 9/810:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Deal found 7/25$335
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Thu 9/310:57 am
ISP
-
LAX
1 stop10h 21m
Frontier
Deal found 7/29$336
This Frontier deal was found by Cheapflights users on 7/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Wed 8/2610:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Deal found 7/25$340

Find flight deals from Los Angeles to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Los Angeles (LAX) 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 July 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$293
(CheapOair)

One-way from

$139
(Frontier)

Popular in

February

Cheapest in

January

Average price

$498
Provider with most accurate pricing for Los Angeles-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Islip Long Island flights.
Search Deals
From Los Angeles to Islip Long Island
Search Deals
One-way flight from Los Angeles to Islip Long Island
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($115 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($64 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Los Angeles 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 2,558,603 searches. Data last updated July 29, 2026.
Use the filters below to find and compare flights from Los Angeles to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 9/17

9:55 am-10:10 pm

1 stop9h 15m

Islip Long Island

Mon 9/21

4:05 pm-10:45 pm

1 stop9h 40m

$329

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 10/22

7:30 am-9:35 pm

1 stop11h 05m

Islip Long Island

Sun 10/25

6:00 am-12:33 pm

1 stop9h 33m

$343

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 9/17

8:40 pm-9:40 am

2 stops10h 00m

Islip Long Island

Thu 9/24

4:05 pm-10:45 pm

1 stop9h 40m

$367

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 9/10

8:40 pm-9:40 am

2 stops10h 00m

Islip Long Island

Sun 9/13

4:35 pm-11:10 pm

2 stops9h 35m

$404

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Fri 10/16

9:56 pm-3:03 pm

1 stop14h 07m

Islip Long Island

Mon 11/2

6:00 am-12:33 pm

1 stop9h 33m

$406

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Tue 9/1

8:50 am-9:49 pm

1 stop9h 59m

Islip Long Island

Sat 9/5

6:00 am-1:20 pm

1 stop10h 20m

$449

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 8/12

8:50 am-9:44 pm

1 stop9h 54m

Islip Long Island

Sun 8/23

6:00 am-1:20 pm

1 stop10h 20m

$456

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Fri 8/14

8:50 am-9:44 pm

1 stop9h 54m

Islip Long Island

Thu 8/20

6:00 am-1:20 pm

1 stop10h 20m

$491
Quickest round-trip

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 10/26

9:57 am-9:37 pm

1 stop8h 40m

Islip Long Island

Fri 11/13

6:00 am-12:33 pm

1 stop9h 33m

$553
Cheapest one-way

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 9/14

9:40 pm-4:58 pm

1 stop16h 18m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Los Angeles 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 from Los Angeles to Islip in July.
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: When it comes to deals on Los Angeles-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Los Angeles-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Los Angeles-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Los Angeles-Islip, New York flights, Cheapflights users trust FlightHub the most. FlightHub 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 Los Angeles-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 Los Angeles to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Los Angeles 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 from Los Angeles to Islip

How much does it cost to fly round-trip from Los Angeles to Islip, New York?

Airfare is below average for this route at the moment.

Los Angeles to Islip, New York flights typically cost between $368 and $561 in September.
The cheapest round-trip price found within the last 5 days was $293 on Frontier (Sep 10-Sep 14).

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated July 29, 2026.
Get a feel of what it's like to fly with Southwest from Los Angeles to Islip by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,228 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Southwest
8.0
Very good
4,228 reviews
Southwest
8.0
Very good
4,228 reviews

Boarding

8.1

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Related info for your journey

Find useful and relevant information for your journey from Los Angeles to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Los Angeles to Islip, New York?

    Departing from Los Angeles to Islip, New York will take you 9h 15m. There are 2503 mi between Los Angeles and Islip, New York. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Los Angeles to Islip, New York round-trip?

    Currently priced at $368, Southwest will fly you from Los Angeles to Islip, New York and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Southwest is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Los Angeles to Islip that include hotel bookings?

    Yes. In addition to deals on Los Angeles to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Los Angeles to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Los Angeles to Islip.

  • Can I find deals for business class flights from Los Angeles to Islip?

    Yes. Cheapflights offers flight deals from Los Angeles to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Islip?

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Top airline flying from Los Angeles to Islip

Discover the top airline that operate flights from Los Angeles to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$368Average$561FlexibilityNo cancel feeOn-time63%

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