LAX - ISP

$125 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 9/29. 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

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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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

Fri, Oct 3 - Mon, Oct 6
Frontier Logo
2:21 pm - 10:55 amLAX-ISP
17h 34m1 stop
Frontier Logo
5:05 pm - 8:28 amISP-LAX
18h 23m1 stop
$187Frontier
Find Deal
Sun, Sep 28 - Wed, Oct 1
Frontier Logo
2:21 pm - 10:40 amLAX-ISP
17h 19m1 stop
Frontier Logo
11:35 am - 8:12 amISP-LAX
23h 37m1 stop
$213Frontier
Find Deal
Mon, Oct 13 - Mon, Oct 20
Frontier Logo
2:27 pm - 8:42 pmLAX-ISP
27h 15m1 stop
Frontier Logo
4:58 pm - 8:28 amISP-LAX
18h 30m1 stop
$221Frontier
Find Deal
Fri, Oct 17 - Sun, Oct 19
Frontier Logo
2:15 pm - 10:37 amLAX-ISP
17h 22m2 stops
Frontier Logo
9:47 pm - 8:28 amISP-LAX
13h 41m1 stop
$222Frontier
Find Deal
Tue, Oct 21 - Mon, Oct 27
JetBlue Logo
9:25 pm - 10:50 amLAX-ISP
10h 25m1 stop
JetBlue Logo
1:57 pm - 11:02 pmISP-LAX
12h 05m1 stop
$263JetBlue
Find Deal
Mon, Sep 29 - Fri, Oct 3
Multiple Airlines Logo
2:21 pm - 10:40 amLAX-ISP
17h 19m1 stop
Multiple Airlines Logo
5:05 pm - 11:10 amISP-LAX
21h 05m2 stops
$273Multiple Airlines
Find Deal
Mon, Sep 29 - Fri, Oct 3
Multiple Airlines Logo
2:21 pm - 10:40 amLAX-ISP
17h 19m1 stop
Multiple Airlines Logo
8:47 pm - 11:58 amISP-LAX
18h 11m1 stop
$339Multiple Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 11
JetBlue Logo
10:35 pm - 1:02 pmLAX-ISP
11h 27m1 stop
JetBlue Logo
4:25 pm - 11:02 pmISP-LAX
9h 37m1 stop
$341JetBlue
Find Deal
Tue, Nov 25 - Mon, Dec 1
Southwest Logo
5:05 am - 5:15 pmLAX-ISP
9h 10m1 stop
Southwest Logo
5:50 pm - 12:45 amISP-LAX
9h 55m2 stops
$488Southwest
Find Deal
Tue, Nov 25 - Mon, Dec 1
Southwest Logo
10:50 am - 11:55 pmLAX-ISP
10h 05m2 stops
Southwest Logo
5:50 pm - 12:45 amISP-LAX
9h 55m2 stops
$515Southwest
Find Deal

Everything you should know

Top airlines
Frontier
Cheapest • from $187 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$187
Frontier
Fri 10/3Mon 10/6
LAX - ISP • 1 stop
Cheapest one-way
$125
Typical prices: $172-217
Frontier
Mon 9/29
LAX - ISP • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Islip!
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.

What’s the cheapest day of the week to fly from Los Angeles to Islip?

The average price of all round-trip flights from Los Angeles to Islip clicked on KAYAK for each day over the last 12 months.

For Los Angeles to Islip, Wednesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Islip back to Los Angeles, the best deals are generally found on Thursday, with Tuesday being the most expensive.

Find deals

Good to know

Low seasonSeptember
Cheapest flight$125
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 18% 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 $125 for a one-way ticket and $187 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 4242 reviews
8.0Comfort
8.1Boarding
7.5Entertainment
7.0Food
8.6Crew
Airline reviews

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

10.0 ExcellentRobert, Sep 2025SFO - LAS
Read more Southwest reviews

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

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)

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