What are the cheapest airlines flying from Islip, New York to Los Angeles round-trip?

According to our current data, Frontier ($287), JetBlue ($316), and Southwest ($351) offers the cheapest pricing from Islip, New York to Los Angeles. Frontier is currently priced 46% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Islip, New York to Los Angeles one-way?

The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as $131. However, be on the lookout for offers from Frontier and Southwest, as they are both options that can get you from Islip, New York to Los Angeles for a low price.

What is the cheapest day to fly from Islip, New York to Los Angeles?

Travelers seeking maximum savings on their Islip, New York to Los Angeles flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Islip, New York to Los Angeles?

It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Islip, New York to Los Angeles?

Travelers have found it’s best to book a flight 31 days in advance to save up to 76% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 31 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Islip, New York to Los Angeles 1-2 weeks in advance for as low as $410, or $654 for flights within the next 24 hours.

What is the cheapest month to fly from Islip, New York to Los Angeles?

Our data shows that September tends to be the cheapest month to fly to Los Angeles from Islip, New York. Users have commonly found prices around $383 for the month, but tickets can be as low as $140. Due to multiple factors, prepare for potentially higher prices in December.

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.

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.

$131+ Flights from Islip, NY to Los Angeles

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1. Tell us where you want to go

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2. Select your favorite providers

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Cheap flight deals from Islip to Los Angeles

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$287 (Frontier)
One-way from	$131 (JetBlue)
Popular in	November
Cheapest in	April
Average price	$440

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. 22% potential increase in price ($159 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($39 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

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 March 27, 2025.

Mon 4/219:10 amISP - LAX

1 stop13h 08mFrontier

Thu 5/14:59 pmLAX - ISP

1 stop14h 13mFrontier

Deal found 3/27

$287

Fri 4/2510:39 amISP - LAX

1 stop13h 01mJetBlue

Mon 4/289:50 pmLAX - ISP

1 stop9h 04mJetBlue

Deal found 3/26

$316

Thu 6/512:05 pmISP - LAX

1 stop10h 05mSouthwest

Wed 6/1110:05 amLAX - ISP

1 stop9h 50mSouthwest

Deal found 3/25

$351

Fri 5/303:55 pmISP - LAX

1 stop23h 15mMultiple Airlines

Mon 6/22:01 pmLAX - ISP

1 stop26h 46mMultiple Airlines

Deal found 3/27

$613

Fri 4/258:25 pmISP - LAX

1 stop18h 11mBreeze Airways

Tue 4/2912:21 pmLAX - ISP

1 stop22h 24mBreeze Airways

Deal found 3/26

$804

Best flights from Islip to Los Angeles
Discover carefully curated flight deals from Islip to Los Angeles that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2025.

Mon 4/219:10 amISP - LAX

1 stop13h 08mFrontier

Thu 5/14:59 pmLAX - ISP

1 stop14h 13mFrontier

Deal found 3/27

$287

Fri 4/2510:39 amISP - LAX

1 stop13h 01mJetBlue

Mon 4/289:50 pmLAX - ISP

1 stop9h 04mJetBlue

Deal found 3/26

$316

Thu 6/512:05 pmISP - LAX

1 stop10h 05mSouthwest

Wed 6/1110:05 amLAX - ISP

1 stop9h 50mSouthwest

Deal found 3/25

$351

Fri 5/303:55 pmISP - LAX

1 stop23h 15mMultiple Airlines

Mon 6/22:01 pmLAX - ISP

1 stop26h 46mMultiple Airlines

Deal found 3/27

$613

Fri 4/258:25 pmISP - LAX

1 stop18h 11mBreeze Airways

Tue 4/2912:21 pmLAX - ISP

1 stop22h 24mBreeze Airways

Deal found 3/26

$804

Last-minute flights from Islip to Los Angeles
Discover last-minute flight deals from Islip to Los Angeles. Data last updated March 27, 2025 and is based on user searches.

Wed 4/22:35 pmISP - LAX

3 stops35h 13mMultiple Airlines

Sun 4/64:29 pmLAX - ISP

2 stops24h 16mMultiple Airlines

Deal found 3/26

$784

Wed 4/24:20 pmISP - LAX

2 stops9h 55mSouthwest

Sun 4/69:45 pmLAX - ISP

1 stop10h 00mSouthwest

Deal found 3/26

$842

Thu 4/39:10 amISP - LAX

1 stop13h 08mFrontier

Mon 4/78:18 pmLAX - ISP

1 stop10h 42mFrontier

Deal found 3/26

$288

Thu 4/310:50 amISP - LAX

3 stops28h 04mBreeze Airways

Tue 4/812:21 pmLAX - ISP

1 stop22h 34mBreeze Airways

Deal found 3/26

$1,057

Mon 4/219:10 amISP - LAX

1 stop13h 08mFrontier

Thu 5/14:59 pmLAX - ISP

1 stop14h 13mFrontier

Deal found 3/27

$287

Fri 4/2510:39 amISP - LAX

1 stop13h 01mJetBlue

Mon 4/289:50 pmLAX - ISP

1 stop9h 04mJetBlue

Deal found 3/26

$316

Fri 4/258:25 pmISP - LAX

1 stop18h 11mBreeze Airways

Tue 4/2912:21 pmLAX - ISP

1 stop22h 24mBreeze Airways

Deal found 3/26

$804

Sun 4/276:25 pmISP - LAX

1 stop8h 55mSouthwest

Mon 4/2811:40 pmLAX - ISP

2 stops9h 45mSouthwest

Deal found 3/26

$394

One-way flights from Islip to Los Angeles
Search for one-way flight options from Islip to Los Angeles. Find affordable one-way fares based on user searches. Data last updated March 27, 2025.

Mon 9/86:00 amISP - LAX

1 stop11h 15mJetBlue

Deal found 3/27

$131

Tue 4/810:50 amISP - LAX

1 stop11h 28mFrontier

Deal found 3/26

$139

Tue 5/64:00 pmISP - LAX

2 stops9h 40mSouthwest

Deal found 3/26

$181

Thu 5/157:39 pmISP - LAX

3 stops30h 47mMultiple Airlines

Deal found 3/26

$371

Tue 7/291:52 pmISP - LAX

3 stops25h 01mBreeze Airways

Deal found 3/26

$457

Cheapflights Fare Finder

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

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Mon 4/21

9:10 am-7:18 pm

1 stop13h 08m

Los Angeles

Thu 5/1

4:59 pm-10:12 am

1 stop14h 13m

$287

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Fri 4/25

10:39 am-8:40 pm

1 stop13h 01m

Los Angeles

Mon 4/28

9:50 pm-9:54 am

1 stop9h 04m

$316

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 6/5

12:05 pm-7:10 pm

1 stop10h 05m

Los Angeles

Wed 6/11

10:05 am-10:55 pm

1 stop9h 50m

$351

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Fri 5/30

3:55 pm-12:10 pm

1 stop23h 15m

Los Angeles

Mon 6/2

2:01 pm-7:47 pm

1 stop26h 46m

$613

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Fri 4/25

8:25 pm-11:36 am

1 stop18h 11m

Los Angeles

Tue 4/29

12:21 pm-1:45 pm

1 stop22h 24m

$804

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Mon 9/8

6:00 am-2:15 pm

1 stop11h 15m

$131

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Tue 4/8

10:50 am-7:18 pm

1 stop11h 28m

$139

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Tue 5/6

4:00 pm-10:40 pm

2 stops9h 40m

$181

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 5/15

7:39 pm-11:26 pm

3 stops30h 47m

$371

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Tue 7/29

1:52 pm-11:53 am

3 stops25h 01m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Compare providers for flights from Islip to Los Angeles

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 March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Los Angeles (average of $246). Flying from Islip, New York to Los Angeles in March is currently the most expensive (average of $330). 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?

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 morning, which can drop the price by up to 13% versus a flight at noon.

Rainfall in Los Angeles by month

In terms of precipitation, rainfall in Los Angeles ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit Los Angeles when rainfall is around 0.0 in.

Temperature in Los Angeles by month

If weather is an important factor for your trip to Los Angeles, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing Los Angeles

Peruse reviews from past customers who have flown with Southwest, Breeze Airways and JetBlue from Islip to Los Angeles to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Southwest

8.1

Very good

4,273 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Breeze Airways

8.0

Very good

156 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

JetBlue

7.3

Good

2,922 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Frontier

6.0

Okay

3,271 reviews

Southwest

8.1

Very good

4,273 reviews

Reviews

1 / 20

10.0

Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

What are the cheapest airlines flying from Islip, New York to Los Angeles round-trip?
According to our current data, Frontier ($287), JetBlue ($316), and Southwest ($351) offers the cheapest pricing from Islip, New York to Los Angeles. Frontier is currently priced 46% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Islip, New York to Los Angeles one-way?
The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as $131. However, be on the lookout for offers from Frontier and Southwest, as they are both options that can get you from Islip, New York to Los Angeles for a low price.
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, January is the cheapest month in which you can book a flight from Islip, New York to Los Angeles (average of $246). Flying from Islip, New York to Los Angeles in March is currently the most expensive (average of $330). 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

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Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Islip to Los Angeles

Airline	Cheapest	Average	Flexibility	On-time
Southwest	Cheapest$344	Average$591	FlexibilityNo cancel fee	On-time63%

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$131+ 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.

Find cheap flights from Islip to Los Angeles with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Islip to Los Angeles

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Islip to Los Angeles

Cheapest flights from Islip to Los AngelesExplore 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 March 27, 2025.

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 March 27, 2025.

Cheapflights Fare Finder

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

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 March.

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.

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?

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 March 27, 2025.

Rainfall in Los Angeles by month

Plan your trip to Los Angeles by taking into account the average rainfall totals by month.

Temperature in Los Angeles by month

Plan your trip to Los Angeles by taking into account the average temperature totals by month.

Reviews of airlines servicing Los Angeles

Peruse reviews from past customers who have flown with Southwest, Breeze Airways and JetBlue from Islip to Los Angeles to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

What are the cheapest airlines flying from Islip, New York to Los Angeles round-trip?

What are the cheapest airlines to fly from Islip, New York to Los Angeles one-way?

Can I find deals for flights from Islip to Los Angeles that include hotel bookings?

How can I find direct flights from Islip to Los Angeles?

Can I find deals for business class flights from Islip to Los Angeles?

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

Traveling to a place near Islip?

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.

Top airline flying from Islip to Los Angeles

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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 March 27, 2025.