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Islip

$111+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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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 January 21, 2026.

This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1210:43 pm
LAX
-
ISP
1 stop11h 04m
Frontier
Mon 3/161:22 pm
ISP
-
LAX
1 stop32h 39m
Frontier
Deal found 1/21$238
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/510:41 pm
LAX
-
ISP
1 stop21h 33m
Frontier
Mon 4/137:34 pm
ISP
-
LAX
1 stop26h 05m
Frontier
Deal found 1/20$260
This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1110:43 pm
LAX
-
ISP
1 stop14h 30m
Frontier
Sun 3/154:34 pm
ISP
-
LAX
1 stop29h 27m
Frontier
Deal found 1/21$295
This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1210:43 pm
LAX
-
ISP
1 stop11h 04m
Frontier
Sun 3/154:34 pm
ISP
-
LAX
1 stop29h 27m
Frontier
Deal found 1/21$309
This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:54 pm
LAX
-
ISP
1 stop9h 19m
Frontier
Mon 5/114:07 pm
ISP
-
LAX
1 stop29h 32m
Frontier
Deal found 1/21$328
This CheapOair deal was found by Cheapflights users on 1/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/410:41 pm
LAX
-
ISP
1 stop18h 10m
Frontier
Thu 4/95:45 am
ISP
-
LAX
1 stop15h 54m
Frontier
Deal found 1/19$342
This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/238:54 pm
LAX
-
ISP
1 stop9h 19m
Frontier
Mon 4/274:07 pm
ISP
-
LAX
1 stop29h 32m
Frontier
Deal found 1/21$358
This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/210:41 pm
LAX
-
ISP
1 stop16h 14m
Frontier
Thu 4/95:45 am
ISP
-
LAX
1 stop15h 54m
Frontier
Deal found 1/21$361
This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:54 pm
LAX
-
ISP
1 stop9h 19m
Frontier
Sun 4/194:07 pm
ISP
-
LAX
1 stop29h 32m
Frontier
Deal found 1/21$368
This CheapOair deal was found by Cheapflights users on 1/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/258:54 pm
LAX
-
ISP
1 stop9h 19m
Frontier
Mon 4/274:07 pm
ISP
-
LAX
1 stop29h 32m
Frontier
Deal found 1/21$378
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:54 pm
LAX
-
ISP
1 stop9h 19m
Frontier
Mon 4/274:07 pm
ISP
-
LAX
1 stop29h 32m
Frontier
Deal found 1/20$408

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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$238
(CheapOair)

One-way from

$111
(CheapOair)

Popular in

December

Cheapest in

January

Average price

$240
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
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 21, 2026.
Use the filters below to find and compare flights from Los Angeles to Islip that are best for you.

Fly from

Los Angeles

Fly to

Islip

Route

Depart

Return

Price

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Sun 4/5

10:41 pm-11:14 pm

1 stop21h 33m

Islip Long Island

Mon 4/13

7:34 pm-6:39 pm

1 stop26h 05m

$260

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Sat 4/4

10:41 pm-7:51 pm

1 stop18h 10m

Islip Long Island

Thu 4/9

5:45 am-6:39 pm

1 stop15h 54m

$342

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 4/22

8:54 pm-9:13 am

1 stop9h 19m

Islip Long Island

Mon 4/27

4:07 pm-6:39 pm

1 stop29h 32m

$408

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Tue 3/31

10:43 pm-10:28 pm

1 stop20h 45m

Islip Long Island

Sun 4/5

8:36 pm-6:39 pm

1 stop25h 03m

$410

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 3/12

10:43 pm-12:47 pm

1 stop11h 04m

Islip Long Island

Mon 3/16

1:22 pm-7:01 pm

1 stop32h 39m

$411

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 4/16

8:54 pm-9:13 am

1 stop9h 19m

Islip Long Island

Mon 4/20

4:07 pm-6:39 pm

1 stop29h 32m

$418

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Sat 4/4

10:41 pm-12:41 am

1 stop23h 00m

Islip Long Island

Wed 4/8

8:30 am-6:39 pm

1 stop13h 09m

$420

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Sun 4/5

10:41 pm-11:14 pm

1 stop21h 33m

Islip Long Island

Wed 4/8

8:30 am-6:39 pm

1 stop13h 09m

$420

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Fri 4/3

10:41 pm-11:42 pm

1 stop22h 01m

Islip Long Island

Thu 4/9

5:45 am-6:39 pm

1 stop15h 54m

$442

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 4/23

8:54 pm-9:13 am

1 stop9h 19m

Islip Long Island

Mon 4/27

4:07 pm-6:39 pm

1 stop29h 32m

$448

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 20 results
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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust 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 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 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

What is the cheapest month to book a flight from Los Angeles to Islip, New York?

Currently, February is the cheapest month in which you can book a flight from Los Angeles to Islip, New York (average of $107). Flying from Los Angeles to Islip, New York in December is currently the most expensive (average of $160). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 January 21, 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
4,266 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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 21h 33m. There are 2503 mi between Los Angeles and Islip, New York.

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

    Currently priced at $381, 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 14% 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.

  • What is the cheapest month to book a flight from Los Angeles to Islip, New York?

    Currently, February is the cheapest month in which you can book a flight from Los Angeles to Islip, New York (average of $107). Flying from Los Angeles to Islip, New York in December is currently the most expensive (average of $160). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Islip?

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

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Alternative routes for Los Angeles to 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$381Average$483FlexibilityNo cancel feeOn-time63%

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