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$134+ 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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — LAX
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
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

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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 July 23, 2026.

This Frontier deal was found by Cheapflights users on 7/20. 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.
Tue 9/110:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Wed 9/99:56 pm
LAX
-
ISP
1 stop8h 37m
Frontier
Deal found 7/20$268
This Frontier deal was found by Cheapflights users on 7/21. 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.
Sat 9/510:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Wed 9/99:56 pm
LAX
-
ISP
1 stop8h 37m
Frontier
Deal found 7/21$275
This Frontier deal was found by Cheapflights users on 7/23. 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 8/2710:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Wed 9/211:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Deal found 7/23$280
This Frontier deal was found by Cheapflights users on 7/21. 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 9/310:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Sat 9/129:56 pm
LAX
-
ISP
1 stop8h 37m
Frontier
Deal found 7/21$282
This Frontier deal was found by Cheapflights users on 7/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Sat 9/511:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Deal found 7/19$288
This Frontier deal was found by Cheapflights users on 7/20. 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 8/1910:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Wed 8/2611:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Deal found 7/20$298
This Frontier deal was found by Cheapflights users on 7/23. 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.
Fri 9/410:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Sat 9/129:56 pm
LAX
-
ISP
1 stop8h 37m
Frontier
Deal found 7/23$300
This Frontier deal was found by Cheapflights users on 7/23. 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.
Tue 8/2510:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Wed 9/211:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Deal found 7/23$308
This Frontier deal was found by Cheapflights users on 7/23. 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 9/310:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Fri 9/119:56 pm
LAX
-
ISP
1 stop8h 37m
Frontier
Deal found 7/23$310
This Southwest deal was found by Cheapflights users on 7/23. 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 8/204:05 pm
ISP
-
LAX
1 stop9h 35m
Southwest
Thu 8/2710:15 pm
LAX
-
ISP
1 stop10h 40m
Southwest
Deal found 7/23$311

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 July 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$268
(Frontier)

One-way from

$134
(Frontier)

Popular in

June

Cheapest in

January

Average price

$550
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. 19% potential increase in price ($125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($47 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 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 July 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

Thu 8/27

4:05 pm-10:40 pm

1 stop9h 35m

Los Angeles

Mon 8/31

11:15 pm-12:10 pm

2 stops9h 55m

$316

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 10/22

5:40 pm-1:25 am

2 stops10h 45m

Los Angeles

Mon 10/26

9:50 pm-12:10 pm

1 stop11h 20m

$335
Quickest round-trip

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Fri 10/30

5:40 pm-12:30 am

1 stop9h 50m

Los Angeles

Fri 11/13

1:25 pm-11:30 pm

1 stop7h 05m

$389

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Wed 8/19

6:00 am-1:20 pm

1 stop10h 20m

Los Angeles

Tue 8/25

8:50 am-9:49 pm

1 stop9h 59m

$398

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 8/20

12:35 pm-7:20 pm

2 stops9h 45m

Los Angeles

Sun 8/23

10:35 pm-9:40 am

1 stop8h 05m

$407

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Sat 11/14

6:00 am-3:05 pm

2 stops12h 05m

Los Angeles

Sat 11/21

9:55 pm-11:45 am

1 stop10h 50m

$436

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Tue 8/18

4:58 pm-11:59 pm

1 stop10h 01m

Los Angeles

Tue 8/25

8:50 am-9:49 pm

1 stop9h 59m

$448

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Tue 8/18

4:58 pm-11:59 pm

1 stop10h 01m

Los Angeles

Wed 8/26

8:50 am-9:44 pm

1 stop9h 54m

$458

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 10/22

6:00 am-12:20 pm

1 stop9h 20m

Los Angeles

Mon 10/26

8:35 am-9:37 pm

1 stop10h 02m

$483

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Wed 8/5

12:55 pm-7:10 pm

2 stops9h 15m

Los Angeles

Sun 8/9

8:40 pm-9:40 am

2 stops10h 00m

$597

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 19 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 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 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 often are flights from Islip to Los Angeles delayed?

About 0% of weekly flights between Islip and Los Angeles have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for Islip to Los Angeles flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

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 July 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
4,238 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

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 and JetBlue can get you from Islip, New York to Los Angeles in just under 9h 35m. Your travel time can differ by up to 45m. The distance from Islip, New York to Los Angeles is about 2503 mi. This flight may include one or multiple stops.

  • 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 34% 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
Redondo Beach
Oceanside
Carson
Buena Park
Oxnard
Garden Grove
Inglewood
Stanton
Universal City
Rosemead
West Hollywood
Fountain Valley
Glendale
Pomona
Torrance
Lake Elsinore
El Segundo
Westminster

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Islip to Los Angeles

See prices for flight routes from nearby airports that may be better suited for you.
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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 July 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$339Average$466FlexibilityNo cancel feeOn-time63%

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