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$65+ 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — LAX
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$211
(CheapOair)

One-way from

$65
(CheapOair)

Popular in

November

Cheapest in

April

Average price

$573
Provider with most accurate pricing for Islip Long Island-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Islip Long Island-Los Angeles flights.
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From Islip Long Island to Los Angeles
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One-way flight from Islip Long Island to Los Angeles
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Highest demand for flights based on searches. 29% potential increase in price ($208 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 30, 2025.

This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:02 amISP - LAX
1 stop11h 21mFrontier
Mon 11/2411:15 pmLAX - ISP
1 stop17h 59mFrontier
Deal found 10/29$211
This CheapOair deal was found by Cheapflights users on 10/28. 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 11/194:58 pmISP - LAX
1 stop28h 25mFrontier
Tue 11/2511:15 pmLAX - ISP
1 stop30h 52mFrontier
Deal found 10/28$232
This CheapOair deal was found by Cheapflights users on 10/30. 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 11/2010:02 amISP - LAX
1 stop11h 21mFrontier
Thu 11/2711:15 pmLAX - ISP
1 stop8h 22mFrontier
Deal found 10/30$243
This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:40 pmISP - LAX
1 stop26h 23mFrontier
Mon 1/511:59 pmLAX - ISP
1 stop11h 40mFrontier
Deal found 10/29$270
This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:02 amISP - LAX
1 stop11h 21mFrontier
Mon 12/111:15 pmLAX - ISP
1 stop17h 19mFrontier
Deal found 10/29$273
This CheapOair deal was found by Cheapflights users on 10/30. 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 12/206:40 pmISP - LAX
1 stop26h 23mFrontier
Tue 12/3011:59 pmLAX - ISP
1 stop13h 38mFrontier
Deal found 10/30$281
This Trip.com deal was found by Cheapflights users on 10/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:02 amISP - LAX
2 stops23h 45mMultiple Airlines
Thu 11/278:57 amLAX - ISP
2 stops22h 40mMultiple Airlines
Deal found 10/29$284

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 October 30, 2025.
Use the filters below to find and compare flights from Islip to Los Angeles that are best for you.

Fly from

Islip

Fly to

Los Angeles

Route

Depart

Return

Price

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 11/20

10:02 am-6:23 pm

1 stop11h 21m

Los Angeles

Mon 11/24

11:15 pm-8:14 pm

1 stop17h 59m

$211

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 11/20

10:02 am-1:26 pm

2 stops30h 24m

Los Angeles

Thu 11/27

11:15 pm-8:02 am

1 stop29h 47m

$253

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 11/20

10:02 am-6:47 am

2 stops23h 45m

Los Angeles

Thu 11/27

8:57 am-10:37 am

2 stops22h 40m

$284

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Sun 12/21

8:35 pm-6:03 pm

1 stop24h 28m

Los Angeles

Wed 12/31

11:59 pm-11:25 am

1 stop8h 26m

$317

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Mon 12/22

2:04 pm-6:03 pm

1 stop30h 59m

Los Angeles

Mon 1/5

11:59 pm-2:39 pm

1 stop11h 40m

$336

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Sat 12/20

6:40 pm-6:03 pm

1 stop26h 23m

Los Angeles

Sun 12/28

11:59 pm-1:09 pm

1 stop10h 10m

$339

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Mon 12/22

8:35 pm-6:03 pm

1 stop24h 28m

Los Angeles

Tue 12/30

11:59 pm-4:37 pm

1 stop13h 38m

$347

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Fri 12/19

1:27 pm-6:03 pm

1 stop31h 36m

Los Angeles

Tue 12/30

11:59 pm-4:37 pm

1 stop13h 38m

$347

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Mon 12/22

2:04 pm-6:03 pm

1 stop30h 59m

Los Angeles

Wed 12/31

11:59 pm-11:25 am

1 stop8h 26m

$347

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Fri 12/19

1:27 pm-6:03 pm

1 stop31h 36m

Los Angeles

Wed 12/31

11:59 pm-11:25 am

1 stop8h 26m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 19 results
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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Islip, New York-Los Angeles flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

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

Currently, August is the cheapest month in which you can book a flight from Islip, New York to Los Angeles (average of $90). Flying from Islip, New York to Los Angeles in December is currently the most expensive (average of $179). 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.

What is the cheapest time of day to fly from ISP to LAX?

Find hourly flight availability from Islip to Los Angeles. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

When flying from Islip, New York to Los Angeles, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 50% versus a flight at noon.

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 October 30, 2025.
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
4,243 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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?

    Frontier can get you from Islip, New York to Los Angeles in just under 11h 21m. 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 ($358), 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.

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

    Currently, August is the cheapest month in which you can book a flight from Islip, New York to Los Angeles (average of $90). Flying from Islip, New York to Los Angeles in December is currently the most expensive (average of $179). 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 Los Angeles?

Book flights to Los Angeles if you plan to visit one of these locations
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Stanton
Universal City
Buena Park
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Hesperia
Torrance
Avalon
Glendale
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Compton
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San Gabriel

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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$358Average$504FlexibilityNo cancel feeOn-time63%

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