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Islip

$160+ Cheap flights from Los Angeles to Islip (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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
Oct 19 — Oct 261
Sun 10/19
Sun 10/26
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 September 19, 2025.

Round-trip from

$187
(CheapOair)

One-way from

$160
(CheapOair)

Popular in

December

Cheapest in

September

Average price

$380
From Los Angeles to Islip Long Island
Search Deals
One-way flight from Los Angeles to Islip Long Island
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Highest demand for flights based on searches. 7% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 19, 2025.

This CheapOair deal was found by Cheapflights users on 9/17. 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 10/162:27 pmLAX - ISP
1 stop17h 10mFrontier
Thu 10/239:37 pmISP - LAX
1 stop13h 51mFrontier
Deal found 9/17$187
This CheapOair deal was found by Cheapflights users on 9/16. 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 9/292:21 pmLAX - ISP
1 stop17h 19mFrontier
Thu 10/211:40 amISP - LAX
1 stop23h 32mFrontier
Deal found 9/16$213
This CheapOair deal was found by Cheapflights users on 9/16. 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 10/72:27 pmLAX - ISP
1 stop17h 30mFrontier
Thu 10/99:37 pmISP - LAX
1 stop13h 51mFrontier
Deal found 9/16$221
This CheapOair deal was found by Cheapflights users on 9/18. 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.
Mon 10/202:27 pmLAX - ISP
1 stop27h 15mFrontier
Fri 10/244:58 pmISP - LAX
1 stop18h 30mFrontier
Deal found 9/18$226
This CheapOair deal was found by Cheapflights users on 9/17. 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 9/292:21 pmLAX - ISP
1 stop17h 19mFrontier
Wed 10/111:35 amISP - LAX
1 stop23h 37mFrontier
Deal found 9/17$229
This CheapOair deal was found by Cheapflights users on 9/17. 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 10/182:27 pmLAX - ISP
1 stop27h 25mFrontier
Mon 10/204:58 pmISP - LAX
1 stop18h 30mFrontier
Deal found 9/17$231
This CheapOair deal was found by Cheapflights users on 9/16. 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 10/172:27 pmLAX - ISP
1 stop17h 10mFrontier
Sun 10/269:47 pmISP - LAX
1 stop13h 41mFrontier
Deal found 9/16$241
This lastminute.com deal was found by Cheapflights users on 9/17. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2910:35 pmLAX - ISP
1 stop11h 27mJetBlue
Tue 11/41:57 pmISP - LAX
1 stop12h 05mJetBlue
Deal found 9/17$243
This CheapOair deal was found by Cheapflights users on 9/16. 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 9/252:21 pmLAX - ISP
1 stop17h 19mFrontier
Sun 10/511:25 amISP - LAX
1 stop23h 47mFrontier
Deal found 9/16$249
This CheapOair deal was found by Cheapflights users on 9/17. 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 9/222:21 pmLAX - ISP
1 stop17h 19mFrontier
Wed 10/84:58 pmISP - LAX
1 stop18h 30mFrontier
Deal found 9/17$250
This CheapOair deal was found by Cheapflights users on 9/17. 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 10/132:27 pmLAX - ISP
1 stop27h 15mFrontier
Thu 10/169:37 pmISP - LAX
1 stop13h 51mFrontier
Deal found 9/17$251
This CheapOair deal was found by Cheapflights users on 9/17. 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 10/92:27 pmLAX - ISP
1 stop17h 10mFrontier
Thu 10/169:37 pmISP - LAX
1 stop13h 51mFrontier
Deal found 9/17$256

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 September 19, 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

Fri 10/24

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

Wed 10/15

2:27 pm-8:42 pm

1 stop27h 15m

Islip Long Island

Sat 10/18

4:58 pm-8:28 am

1 stop18h 30m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Fri 10/3

2:21 pm-10:55 am

1 stop17h 34m

Islip Long Island

Mon 10/6

5:05 pm-8:28 am

1 stop18h 23m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Fri 10/3

2:21 pm-10:55 am

1 stop17h 34m

Islip Long Island

Sun 10/5

11:25 am-8:12 am

1 stop23h 47m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Fri 10/17

2:27 pm-10:37 am

1 stop17h 10m

Islip Long Island

Mon 10/20

4:58 pm-8:28 am

1 stop18h 30m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 10/16

2:27 pm-10:37 am

1 stop17h 10m

Islip Long Island

Thu 10/23

9:37 pm-8:28 am

1 stop13h 51m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 10/16

2:27 pm-10:37 am

1 stop17h 10m

Islip Long Island

Sun 10/19

9:47 pm-8:28 am

1 stop13h 41m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Tue 10/21

2:27 pm-10:57 am

1 stop17h 30m

Islip Long Island

Thu 10/23

9:37 pm-8:28 am

1 stop13h 51m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Fri 10/17

2:27 pm-10:37 am

1 stop17h 10m

Islip Long Island

Sun 10/19

9:47 pm-8:28 am

1 stop13h 41m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 10/15

2:27 pm-8:42 pm

1 stop27h 15m

Islip Long Island

Wed 10/22

4:58 pm-8:28 am

1 stop18h 30m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/18

Showing 1-10 of 21 results
1
2
3

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?

Currently, January is the cheapest month in which you can book a flight from Los Angeles to Islip (average of $108). Flying from Los Angeles to Islip 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 September 19, 2025.

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

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

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 September 19, 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
4,242 reviews

Food

7.0

Boarding

8.1

Crew

8.6

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Boarding

8.1

Crew

8.6

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.

  • How long is the flight from Los Angeles to Islip?

    Departing from Los Angeles to Islip will take you 17h 10m. The distance between Los Angeles and Islip is about 2503 mi.

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

    Cheapflights users have booked flights from Los Angeles to Islip round-trip from $381. Users have found that Southwest is 23% cheaper than the other options available to this destination.

  • 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?

    Currently, January is the cheapest month in which you can book a flight from Los Angeles to Islip (average of $108). Flying from Los Angeles to Islip 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
Southampton

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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 September 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$381Average$478FlexibilityNo cancel feeOn-time63%

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