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Islip

$100+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
Apr 5 — Apr 121
Sun 4/5
Sun 4/12
1 adult, Economy
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Find cheap flights from Los Angeles to Islip with Cheapflights

1. Tell us where you want to go

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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 March 6, 2026.

This CheapOair deal was found by Cheapflights users on 3/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:04 pm
LAX
-
ISP
1 stop9h 09m
Frontier
Fri 5/14:07 pm
ISP
-
LAX
1 stop29h 59m
Frontier
Deal found 3/3$200
This CheapOair deal was found by Cheapflights users on 3/5. 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 5/168:54 pm
LAX
-
ISP
1 stop9h 19m
Frontier
Sat 5/2310:03 am
ISP
-
LAX
1 stop9h 40m
Frontier
Deal found 3/5$225
This CheapOair deal was found by Cheapflights users on 3/6. 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 8/110:49 pm
LAX
-
ISP
1 stop31h 19m
Frontier
Mon 8/3110:03 am
ISP
-
LAX
1 stop9h 40m
Frontier
Deal found 3/6$244
This CheapOair deal was found by Cheapflights users on 3/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/110:41 pm
LAX
-
ISP
1 stop13h 29m
Frontier
Thu 4/304:07 pm
ISP
-
LAX
1 stop29h 59m
Frontier
Deal found 3/1$245
This CheapOair deal was found by Cheapflights users on 3/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1910:49 pm
LAX
-
ISP
1 stop31h 19m
Frontier
Wed 7/2910:03 am
ISP
-
LAX
1 stop9h 40m
Frontier
Deal found 3/1$250
This CheapOair deal was found by Cheapflights users on 3/5. 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 5/108:54 pm
LAX
-
ISP
1 stop9h 19m
Frontier
Thu 5/144:07 pm
ISP
-
LAX
1 stop29h 32m
Frontier
Deal found 3/5$265
This CheapOair deal was found by Cheapflights users on 3/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/229:04 pm
LAX
-
ISP
1 stop9h 29m
Frontier
Mon 4/274:07 pm
ISP
-
LAX
1 stop29h 59m
Frontier
Deal found 3/4$266
This CheapOair deal was found by Cheapflights users on 3/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:49 pm
LAX
-
ISP
1 stop31h 19m
Frontier
Tue 7/2810:03 am
ISP
-
LAX
1 stop9h 40m
Frontier
Deal found 3/3$270
This CheapOair deal was found by Cheapflights users on 3/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/110:41 pm
LAX
-
ISP
1 stop13h 29m
Frontier
Wed 4/85:28 pm
ISP
-
LAX
1 stop28h 06m
Frontier
Deal found 3/1$286
This CheapOair deal was found by Cheapflights users on 3/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:04 pm
LAX
-
ISP
1 stop9h 09m
Frontier
Sun 4/264:07 pm
ISP
-
LAX
1 stop29h 59m
Frontier
Deal found 3/3$290
This CheapOair deal was found by Cheapflights users on 3/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2910:43 pm
LAX
-
ISP
1 stop10h 50m
Frontier
Wed 4/85:28 pm
ISP
-
LAX
1 stop28h 06m
Frontier
Deal found 3/1$330

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 March 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$200
(CheapOair)

One-way from

$100
(CheapOair)

Popular in

February

Cheapest in

January

Average price

$766
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. 26% potential increase in price ($203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease ($71 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 6, 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

Sat 6/27

10:20 pm-4:40 pm

1 stop15h 20m

Islip Long Island

Mon 6/29

5:50 pm-10:35 pm

1 stop7h 45m

$462
Quickest round-trip

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 7/6

11:40 pm-11:50 am

2 stops9h 10m

Islip Long Island

Sat 7/11

5:35 pm-10:05 pm

1 stop7h 30m

$474

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Fri 7/24

11:00 pm-2:44 pm

1 stop12h 44m

Islip Long Island

Mon 7/27

3:07 pm-11:58 pm

1 stop11h 51m

$488

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Sun 4/5

5:10 am-5:05 pm

1 stop8h 55m

Islip Long Island

Sun 4/12

11:50 am-10:50 pm

1 stop14h 00m

$498

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 8/17

11:00 pm-2:11 pm

1 stop12h 11m

Islip Long Island

Mon 8/24

3:07 pm-11:58 pm

1 stop11h 51m

$533

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 3/16

5:00 am-5:20 pm

1 stop9h 20m

Islip Long Island

Fri 3/20

5:55 pm-11:20 pm

1 stop8h 25m

$567

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 7/29

11:00 pm-2:11 pm

1 stop12h 11m

Islip Long Island

Tue 8/4

5:00 pm-11:58 pm

1 stop9h 58m

$578

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Tue 3/17

7:20 am-7:30 pm

1 stop9h 10m

Islip Long Island

Tue 3/24

8:25 am-3:23 pm

1 stop9h 58m

$584

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Fri 3/20

5:00 am-5:20 pm

1 stop9h 20m

Islip Long Island

Tue 3/24

12:20 pm-5:55 pm

1 stop8h 35m

$594

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Tue 7/28

11:00 pm-2:11 pm

1 stop12h 11m

Islip Long Island

Mon 8/3

3:07 pm-11:58 pm

1 stop11h 51m

$603

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/1

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 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

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

Currently, June is the cheapest month in which you can book a flight from Los Angeles to Islip, New York (average of $78). Flying from Los Angeles to Islip, New York in May is currently the most expensive (average of $194). 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 March 6, 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
4,309 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

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
4,309 reviews
Southwest
8.0
Very good
4,309 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

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 12h 44m. 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 $380, 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 31% 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, June is the cheapest month in which you can book a flight from Los Angeles to Islip, New York (average of $78). Flying from Los Angeles to Islip, New York in May is currently the most expensive (average of $194). 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 March 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$380Average$483FlexibilityNo cancel feeOn-time63%

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