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$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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$187
(CheapOair)

One-way from

$100
(CheapOair)

Popular in

July

Cheapest in

October

Average price

$561
From Los Angeles to Islip Long Island
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One-way flight from Los Angeles to Islip Long Island
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Highest demand for flights based on searches. 11% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This CheapOair deal was found by Cheapflights users on 8/14. 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 10/82:27 pmLAX - ISP
1 stop27h 15mFrontier
Sun 10/129:47 pmISP - LAX
1 stop13h 41mFrontier
Deal found 8/14$187
This CheapOair deal was found by Cheapflights users on 8/14. 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 9/122:46 pmLAX - ISP
1 stop17h 09mFrontier
Sat 9/205:05 pmISP - LAX
1 stop18h 07mFrontier
Deal found 8/14$211
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/72:27 pmLAX - ISP
1 stop17h 30mFrontier
Tue 10/149:37 pmISP - LAX
1 stop13h 51mFrontier
Deal found 8/13$215
This CheapOair deal was found by Cheapflights users on 8/14. 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 10/22:21 pmLAX - ISP
1 stop17h 19mFrontier
Tue 10/79:37 pmISP - LAX
1 stop13h 51mFrontier
Deal found 8/14$218
This CheapOair deal was found by Cheapflights users on 8/14. 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 10/22:21 pmLAX - ISP
1 stop17h 19mFrontier
Mon 10/65:05 pmISP - LAX
1 stop18h 23mFrontier
Deal found 8/14$221
This CheapOair deal was found by Cheapflights users on 8/14. 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 9/142:21 pmLAX - ISP
1 stop17h 19mFrontier
Sun 9/2111:25 amISP - LAX
1 stop23h 47mFrontier
Deal found 8/14$226
This CheapOair deal was found by Cheapflights users on 8/14. 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 10/62:21 pmLAX - ISP
1 stop27h 21mFrontier
Mon 10/134:58 pmISP - LAX
1 stop18h 30mFrontier
Deal found 8/14$229
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/22:21 pmLAX - ISP
1 stop17h 19mFrontier
Sun 10/55:12 pmISP - LAX
2 stops27h 08mFrontier
Deal found 8/14$231
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/122:46 pmLAX - ISP
1 stop17h 09mFrontier
Sun 9/145:12 pmISP - LAX
2 stops22h 01mFrontier
Deal found 8/14$234
This CheapOair deal was found by Cheapflights users on 8/14. 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 10/102:27 pmLAX - ISP
1 stop17h 10mFrontier
Sun 10/129:47 pmISP - LAX
1 stop13h 41mFrontier
Deal found 8/14$241
This CheapOair deal was found by Cheapflights users on 8/14. 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 8/212:15 pmLAX - ISP
1 stop15h 58mFrontier
Wed 8/278:00 amISP - LAX
1 stop27h 08mFrontier
Deal found 8/14$244

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 August 14, 2025.
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

Tue 10/21

2:27 pm-10:57 am

1 stop17h 30m

Islip Long Island

Fri 10/24

4:58 pm-8:28 am

1 stop18h 30m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 9/25

2:21 pm-10:40 am

1 stop17h 19m

Islip Long Island

Wed 10/1

11:35 am-8:12 am

1 stop23h 37m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 10/23

2:27 pm-10:37 am

1 stop17h 10m

Islip Long Island

Sun 10/26

9:47 pm-8:28 am

1 stop13h 41m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 9/4

2:46 pm-10:40 am

1 stop16h 54m

Islip Long Island

Sat 9/6

5:05 pm-8:42 am

1 stop18h 37m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 9/29

2:21 pm-10:40 am

1 stop17h 19m

Islip Long Island

Tue 10/7

9:37 pm-8:28 am

1 stop13h 51m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 10/20

2:27 pm-8:42 pm

1 stop27h 15m

Islip Long Island

Fri 10/24

4:58 pm-8:28 am

1 stop18h 30m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 9/15

2:21 pm-10:40 am

1 stop17h 19m

Islip Long Island

Wed 10/22

4:58 pm-8:28 am

1 stop18h 30m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 10/8

2:27 pm-8:42 pm

1 stop27h 15m

Islip Long Island

Sun 10/12

9:47 pm-8:28 am

1 stop13h 41m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 10/9

2:27 pm-10:37 am

1 stop17h 10m

Islip Long Island

Sun 10/12

9:47 pm-8:28 am

1 stop13h 41m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 10/22

2:27 pm-8:42 pm

1 stop27h 15m

Islip Long Island

Sat 10/25

4:58 pm-8:28 am

1 stop18h 30m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 23 results
1
2
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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, January is the cheapest month in which you can book a flight from Los Angeles to Islip, New York (average of $108). Flying from Los Angeles to Islip, New York in November is currently the most expensive (average of $213). 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 LAX to ISP?

Find hourly flight availability from Los Angeles to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 38% on flights from Los Angeles to Islip, New York by exploring options for tickets at noon.

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 August 14, 2025.
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
4,244 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

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
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

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 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.

  • 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 20% 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, January is the cheapest month in which you can book a flight from Los Angeles to Islip, New York (average of $108). Flying from Los Angeles to Islip, New York in November is currently the most expensive (average of $213). 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$380Average$496FlexibilityNo cancel feeOn-time63%

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