HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$112+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
Feb 4 — Feb 111
Wed 2/4
Wed 2/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Los Angeles to Islip 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

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 5, 2026.

This CheapOair deal was found by Cheapflights users on 1/4. 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 4/111:59 pmLAX - ISP
1 stop29h 42mFrontier
Wed 4/88:19 pmISP - LAX
1 stop24h 44mFrontier
Deal found 1/4$196
This CheapOair deal was found by Cheapflights users on 1/4. 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.
Mon 4/611:59 pmLAX - ISP
1 stop16h 12mFrontier
Thu 4/99:41 amISP - LAX
1 stop11h 22mFrontier
Deal found 1/4$231
This CheapOair deal was found by Cheapflights users on 1/4. 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 3/1810:39 pmLAX - ISP
1 stop14h 10mFrontier
Mon 3/231:22 pmISP - LAX
1 stop32h 39mFrontier
Deal found 1/4$246
This CheapOair deal was found by Cheapflights users on 1/3. 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 4/411:59 pmLAX - ISP
1 stop29h 42mFrontier
Wed 4/88:19 pmISP - LAX
1 stop24h 44mFrontier
Deal found 1/3$250
This CheapOair deal was found by Cheapflights users on 1/4. 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.
Sun 4/511:59 pmLAX - ISP
1 stop16h 12mFrontier
Wed 4/88:19 pmISP - LAX
1 stop24h 44mFrontier
Deal found 1/4$261
This CheapOair deal was found by Cheapflights users on 1/4. 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 3/1810:39 pmLAX - ISP
1 stop14h 10mFrontier
Sun 3/224:34 pmISP - LAX
1 stop29h 27mFrontier
Deal found 1/4$276
This CheapOair deal was found by Cheapflights users on 1/4. 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.
Sat 4/411:59 pmLAX - ISP
1 stop29h 42mFrontier
Mon 4/68:19 pmISP - LAX
1 stop24h 44mFrontier
Deal found 1/4$300
This CheapOair deal was found by Cheapflights users on 1/4. 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.
Sat 3/1410:39 pmLAX - ISP
1 stop14h 10mFrontier
Mon 3/161:22 pmISP - LAX
1 stop32h 39mFrontier
Deal found 1/4$311
This CheapOair deal was found by Cheapflights users on 1/3. 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 4/211:59 pmLAX - ISP
1 stop29h 42mFrontier
Sun 4/58:19 pmISP - LAX
1 stop24h 44mFrontier
Deal found 1/3$331
This CheapOair deal was found by Cheapflights users on 1/4. 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.
Sun 3/1510:39 pmLAX - ISP
1 stop10h 54mFrontier
Sun 3/224:34 pmISP - LAX
1 stop29h 27mFrontier
Deal found 1/4$341
This CheapOair deal was found by Cheapflights users on 1/4. 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.
Tue 3/3110:39 pmLAX - ISP
1 stop31h 02mFrontier
Sun 4/59:41 amISP - LAX
1 stop11h 22mFrontier
Deal found 1/4$356

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 5, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$196
(CheapOair)

One-way from

$112
(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 5, 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

Wed 4/1

11:59 pm-8:41 am

1 stop29h 42m

Islip Long Island

Wed 4/8

8:19 pm-6:03 pm

1 stop24h 44m

$196

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 4/6

11:59 pm-7:11 pm

1 stop16h 12m

Islip Long Island

Thu 4/9

9:41 am-6:03 pm

1 stop11h 22m

$231

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 3/18

10:39 pm-3:49 pm

1 stop14h 10m

Islip Long Island

Mon 3/23

1:22 pm-7:01 pm

1 stop32h 39m

$246

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Fri 4/3

11:59 pm-7:11 pm

1 stop16h 12m

Islip Long Island

Tue 4/7

8:19 pm-6:03 pm

1 stop24h 44m

$261

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 3/18

10:39 pm-3:49 pm

1 stop14h 10m

Islip Long Island

Sun 3/22

4:34 pm-7:01 pm

1 stop29h 27m

$276

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Sat 4/4

11:59 pm-8:41 am

1 stop29h 42m

Islip Long Island

Mon 4/6

8:19 pm-6:03 pm

1 stop24h 44m

$300

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 3/19

10:39 pm-12:47 pm

1 stop11h 08m

Islip Long Island

Sun 3/22

4:34 pm-7:01 pm

1 stop29h 27m

$311

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 3/26

10:39 pm-12:47 pm

1 stop11h 08m

Islip Long Island

Sat 4/4

8:19 pm-6:03 pm

1 stop24h 44m

$311

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 4/2

11:59 pm-8:41 am

1 stop29h 42m

Islip Long Island

Sun 4/5

8:19 pm-6:03 pm

1 stop24h 44m

$331

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Sun 3/15

10:39 pm-12:33 pm

1 stop10h 54m

Islip Long Island

Sun 3/22

4:34 pm-7:01 pm

1 stop29h 27m

$341

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/4

Showing 1-10 of 18 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
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Los Angeles-Islip, New York flight deals on Cheapflights vs. eDreams >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 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 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, November 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 5, 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
4,248 reviews

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Boarding

8.1

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 29h 42m. 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 $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 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, November 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Los Angeles to Islip

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Newark flights
Los Angeles to LaGuardia flights
San Francisco to Newark flights
San Francisco to LaGuardia flights
San Diego to Newark flights
San Diego to John F Kennedy Intl flights
Burbank to LaGuardia flights
Ontario to John F Kennedy Intl flights
Ontario to Newark flights
San Diego to LaGuardia flights
Santa Ana to LaGuardia flights
Las Vegas to John F Kennedy Intl flights
Santa Ana to John F Kennedy Intl flights
Santa Ana to Newark flights
Ontario to LaGuardia flights
Las Vegas to Newark flights
Sacramento to Newark flights
Sacramento to John F Kennedy Intl flights
San Jose to Newark flights
Oakland to John F Kennedy Intl flights
San Jose to LaGuardia flights
Sacramento to LaGuardia flights
Oakland to Newark flights
San Jose to John F Kennedy Intl flights
Las Vegas to LaGuardia flights
Burbank to John F Kennedy Intl flights
Long Beach to John F Kennedy Intl flights
Burbank to Newark flights
Fresno to John F Kennedy Intl flights
Los Angeles to Buffalo flights
San Francisco to White Plains flights
Reno to John F Kennedy Intl flights
Fresno to Newark flights
Oakland to LaGuardia flights
Reno to Newark flights
Palm Springs to John F Kennedy Intl flights
Fresno to LaGuardia flights
Reno to LaGuardia flights
San Francisco to Syracuse flights
Los Angeles to White Plains flights
Palm Springs to Newark flights
Palm Springs to LaGuardia flights
San Francisco to Albany flights
Ontario to Buffalo flights
Los Angeles to Albany flights
Long Beach to Newark flights
San Francisco to Buffalo flights
San Jose to White Plains flights

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 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$380Average$481FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.