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$105+ Cheap flights from Islip, NY to Los Angeles (ISP - LAX)

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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — LAX
May 23 — May 301
Sat 5/23
Sat 5/30
1 adult, Economy
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Find cheap flights from Islip to Los Angeles 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

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Cheap flight deals from Islip to Los Angeles

Cheapest flights from Islip to Los Angeles
Explore the most affordable flight options available from Islip to Los Angeles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.

This CheapOair deal was found by Cheapflights users on 4/21. 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.
Fri 5/2911:00 am
ISP
-
LAX
1 stop10h 27m
Frontier
Mon 6/111:21 pm
LAX
-
ISP
1 stop14h 56m
Frontier
Deal found 4/21$220
This Frontier deal was found by Cheapflights users on 4/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2811:00 am
ISP
-
LAX
1 stop10h 27m
Frontier
Mon 6/111:21 pm
LAX
-
ISP
1 stop14h 56m
Frontier
Deal found 4/21$235
This Expedia deal was found by Cheapflights users on 4/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:00 am
ISP
-
LAX
1 stop10h 27m
Frontier
Mon 6/811:21 pm
LAX
-
ISP
1 stop31h 42m
Frontier
Deal found 4/19$250
This CheapOair deal was found by Cheapflights users on 4/22. 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.
Fri 5/14:07 pm
ISP
-
LAX
1 stop29h 59m
Frontier
Mon 5/49:04 pm
LAX
-
ISP
1 stop10h 56m
Frontier
Deal found 4/22$256
This Frontier deal was found by Cheapflights users on 4/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:00 am
ISP
-
LAX
1 stop10h 27m
Frontier
Mon 6/111:21 pm
LAX
-
ISP
1 stop14h 56m
Frontier
Deal found 4/20$270
This CheapOair deal was found by Cheapflights users on 4/18. 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 4/304:07 pm
ISP
-
LAX
1 stop29h 59m
Frontier
Mon 5/49:04 pm
LAX
-
ISP
1 stop10h 56m
Frontier
Deal found 4/18$280
This CheapOair deal was found by Cheapflights users on 4/19. 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 7/410:48 am
ISP
-
LAX
1 stop10h 14m
Frontier
Wed 7/811:03 pm
LAX
-
ISP
1 stop32h 00m
Frontier
Deal found 4/19$290
This CheapOair deal was found by Cheapflights users on 4/20. 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.
Fri 5/14:07 pm
ISP
-
LAX
1 stop29h 59m
Frontier
Sun 5/39:04 pm
LAX
-
ISP
1 stop9h 09m
Frontier
Deal found 4/20$311
This Southwest deal was found by Cheapflights users on 4/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/304:40 pm
ISP
-
LAX
1 stop8h 55m
Southwest
Tue 6/26:00 am
LAX
-
ISP
1 stop9h 30m
Southwest
Deal found 4/21$314
This CheapOair deal was found by Cheapflights users on 4/18. 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 4/304:07 pm
ISP
-
LAX
1 stop29h 59m
Frontier
Sun 5/39:04 pm
LAX
-
ISP
1 stop9h 09m
Frontier
Deal found 4/18$335

Find flight deals from Islip to Los Angeles

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Los Angeles (LAX). 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 April 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$220
(CheapOair)

One-way from

$105
(CheapOair)

Popular in

March

Cheapest in

January

Average price

$387
Provider with most accurate pricing for Islip Long Island-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Los Angeles flights.
Search Deals
From Islip Long Island to Los Angeles
Search Deals
One-way flight from Islip Long Island to Los Angeles
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Los Angeles 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 April 23, 2026.
Use the filters below to find and compare flights from Islip to Los Angeles that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Sat 5/30

4:40 pm-10:35 pm

1 stop8h 55m

Los Angeles

Tue 6/2

6:00 am-6:30 pm

1 stop9h 30m

$314

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Fri 8/7

1:15 pm-9:20 pm

2 stops11h 05m

Los Angeles

Tue 8/11

10:55 am-9:05 pm

1 stop7h 10m

$357

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Tue 6/2

4:10 pm-9:20 pm

1 stop8h 10m

Los Angeles

Sat 6/13

5:00 am-4:55 pm

1 stop8h 55m

$388

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Fri 7/31

5:50 pm-12:50 am

2 stops10h 00m

Los Angeles

Fri 8/21

10:45 pm-11:15 am

1 stop9h 30m

$425
Quickest round-trip

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Tue 10/20

4:25 pm-9:50 pm

1 stop8h 25m

Los Angeles

Sat 10/24

5:05 am-3:35 pm

1 stop7h 30m

$437

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Sat 5/9

12:15 pm-7:30 pm

1 stop10h 15m

Los Angeles

Sun 5/10

1:15 pm-11:50 pm

1 stop7h 35m

$439

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Sat 8/1

2:45 pm-10:05 pm

1 stop10h 20m

Los Angeles

Sat 8/8

10:45 pm-12:05 pm

1 stop10h 20m

$439

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 5/28

12:30 pm-5:45 pm

1 stop8h 15m

Los Angeles

Thu 5/28

11:15 pm-12:05 pm

1 stop9h 50m

$439

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Tue 5/5

6:30 am-11:40 am

1 stop8h 10m

Los Angeles

Sat 5/9

10:30 am-11:20 pm

2 stops9h 50m

$444
Cheapest one-way

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Tue 9/1

10:30 am-5:40 pm

1 stop10h 10m

$132

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Islip to Los Angeles

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

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

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

Reviews of airlines servicing Los Angeles

Get insights into the airlines that provide service to Los Angeles. 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 Los Angeles. Reviews last updated April 23, 2026.
See what other customers who have flown with Southwest from Islip to Los Angeles have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,327 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,327 reviews
Southwest
8.0
Very good
4,327 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Islip to Los Angeles. 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 Islip, New York to Los Angeles?

    Southwest can get you from Islip, New York to Los Angeles in just under 8h 55m. Your travel time can differ by up to . The distance from Islip, New York to Los Angeles is about 2503 mi.

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

    According to our current data, Southwest ($339), offers the cheapest pricing from Islip, New York to Los Angeles. Southwest is currently priced 28% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to Los Angeles 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 Los Angeles?

Book flights to Los Angeles if you plan to visit one of these locations
Downey
Avalon
Oceanside
Inglewood
Carson
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Torrance
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El Segundo
Buena Park
Oxnard
Garden Grove
West Hollywood
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Moreno Valley
Manhattan Beach

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Top airline flying from Islip to Los Angeles

Discover the top airline that operate flights from Islip to Los Angeles. 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 April 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$339Average$496FlexibilityNo cancel feeOn-time63%

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