LAX - ISP

$90 Find Cheap Flights from Los Angeles to Islip

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Los Angeles to Islip departing on 4/18. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Islip

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Los Angeles to Islip, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Los Angeles to Islip, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$180
Frontier
Sat 4/18Mon 4/27
LAX - ISP • 1 stop
Cheapest one-way
$90
Typical prices: $291-$395
Frontier
Sat 4/18
LAX - ISP • 1 stop
Top airlines
Frontier
Cheapest • from $180 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Los Angeles to Islip (LAX-ISP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Los Angeles to Islip that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Los Angeles to Islip

Sat, Apr 18 - Mon, Apr 27
Frontier Logo
8:54 pm - 9:13 am
LAX
-
ISP
9h 19m
1 stop
Frontier Logo
4:07 pm - 6:39 pm
ISP
-
LAX
29h 32m
1 stop
$180Frontier
Sun, Apr 19 - Thu, Apr 23
Frontier Logo
8:54 pm - 9:13 am
LAX
-
ISP
9h 19m
1 stop
Frontier Logo
4:07 pm - 6:39 pm
ISP
-
LAX
29h 32m
1 stop
$215Frontier
Tue, Apr 7 - Thu, Apr 9
Frontier Logo
10:41 pm - 10:28 pm
LAX
-
ISP
20h 47m
1 stop
Frontier Logo
5:45 am - 6:39 pm
ISP
-
LAX
15h 54m
1 stop
$222Frontier
Thu, Mar 12 - Mon, Mar 16
Frontier Logo
10:43 pm - 12:47 pm
LAX
-
ISP
11h 04m
1 stop
Frontier Logo
1:22 pm - 7:01 pm
ISP
-
LAX
32h 39m
1 stop
$238Frontier
Thu, Apr 23 - Sun, Apr 26
Frontier Logo
8:54 pm - 9:13 am
LAX
-
ISP
9h 19m
1 stop
Frontier Logo
4:07 pm - 6:39 pm
ISP
-
LAX
29h 32m
1 stop
$256Frontier
Thu, Mar 12 - Sun, Mar 15
Frontier Logo
10:43 pm - 12:47 pm
LAX
-
ISP
11h 04m
1 stop
Frontier Logo
4:34 pm - 7:01 pm
ISP
-
LAX
29h 27m
1 stop
$350Frontier
Mon, Apr 6 - Wed, Apr 8
Frontier Logo
10:41 pm - 10:28 pm
LAX
-
ISP
20h 47m
1 stop
Frontier Logo
8:30 am - 6:39 pm
ISP
-
LAX
13h 09m
1 stop
$380Frontier
Tue, Mar 31 - Fri, Apr 10
Frontier Logo
10:43 pm - 10:28 pm
LAX
-
ISP
20h 45m
1 stop
Frontier Logo
7:34 pm - 6:39 pm
ISP
-
LAX
26h 05m
1 stop
$385Frontier
Sat, Mar 14 - Mon, Mar 16
Frontier Logo
10:43 pm - 3:49 pm
LAX
-
ISP
14h 06m
1 stop
Frontier Logo
1:22 pm - 7:01 pm
ISP
-
LAX
32h 39m
1 stop
$409Frontier
Tue, Apr 7 - Thu, Apr 9
Southwest Logo
6:05 am - 6:30 pm
LAX
-
ISP
9h 25m
1 stop
Southwest Logo
6:00 am - 11:05 am
ISP
-
LAX
8h 05m
1 stop
$437Southwest
Booking Insights

KAYAK's insights & trends for Los Angeles to Islip flights

Get data-powered insights and trends into flights from Los Angeles to Islip to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Los Angeles to Islip?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Los Angeles to Islip were found on Frontier ($180) and Southwest ($437).

Find deals

Good to know

Cheapest flight$90
Most popular time to fly with an average 32% increase in price.
Flight from Los Angeles to Islip

When to book flights from Los Angeles to Islip

Are your dates flexible? Find out the best times to travel from Los Angeles to Islip based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Los Angeles to Islip

  • What is the cheapest flight from Los Angeles to Islip?

    In the last 3 days, the lowest price for a flight from Los Angeles to Islip was $90 for a one-way ticket and $180 for a round-trip.

  • Do I need a passport to fly between Los Angeles and Islip?

    No, a passport isn't needed to fly from Los Angeles to Islip. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Los Angeles to Islip?

    Los Angeles and Islip are both served by 1 main airport. You will leave Los Angeles from Los Angeles and will be arriving at Islip Long Island.

  • Which aircraft models fly most regularly from Los Angeles to Islip?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Los Angeles to Islip?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Los Angeles to Islip.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Los Angeles to Islip?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Los Angeles is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Los Angeles to Islip?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Islip with an airline and back to Los Angeles with another airline. Booking your flights between Los Angeles and ISP can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Los Angeles to Islip?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Islip from Los Angeles up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Los Angeles to Islip

 
See real verified KAYAK customer reviews for airlines flying from Los Angeles to Islip. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Los Angeles to Islip? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4268 reviews
7.0Food
8.6Crew
8.1Boarding
7.5Entertainment
8.0Comfort
Airline reviews

Great flight but super high price. Glad it was a business trip and not personal

10.0 ExcellentPieter, Jan 2026
LGB - DAL
Read more Southwest reviews

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

We got exit row seats both flights. Everything was running on time

Pretty seamless, just a tad bit late in taking off and landing.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Everything you need to know for your flight from Los Angeles to Islip

Information on your arrival and departure airports

Los Angeles (LAX)
Islip (ISP)