$132 Find Cheap Flights from Islip to California

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to California departing on 10/27. 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 California

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to California, 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 Islip to California, as well as popular online travel agencies
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Cheap Flights from Islip to California

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Los Angeles
Los Angeles1 stop$187
San Francisco
San Francisco2 stops$278
San Diego
San Diego1 stop$424
San Jose
San Jose1 stop$545
Fresno
Fresno2 stops$1,142
Los Angeles
Los Angeles1 stop$187
San Francisco
San Francisco2 stops$278
San Diego
San Diego1 stop$424
San Jose
San Jose1 stop$545
Fresno
Fresno2 stops$1,142

Book Cheap Islip to California Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to California 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 Islip to California

Mon, Oct 20 - Thu, Oct 23
Frontier Logo
4:58 pm - 12:54 amISP-LAS
10h 56m1 stop
Frontier Logo
10:16 pm - 10:37 amLAS-ISP
9h 21m1 stop
$181Frontier
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Sat, Oct 25 - Thu, Oct 30
Frontier Logo
4:58 pm - 11:52 pmISP-LAS
9h 54m1 stop
Frontier Logo
11:02 pm - 10:37 amLAS-ISP
8h 35m1 stop
$183Frontier
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Mon, Oct 27 - Mon, Oct 27
JetBlue Logo
1:57 pm - 8:47 pmISP-LAS
9h 50m1 stop
JetBlue Logo
11:59 pm - 1:02 pmLAS-ISP
10h 03m1 stop
$285JetBlue
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Mon, Oct 27 - Thu, Oct 30
JetBlue Logo
1:57 pm - 8:47 pmISP-LAS
9h 50m1 stop
JetBlue Logo
10:10 pm - 11:38 amLAS-ISP
10h 28m1 stop
$288JetBlue
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Sat, Sep 27 - Wed, Oct 1
Multiple Airlines Logo
5:05 pm - 8:12 amISP-LAX
18h 07m1 stop
Multiple Airlines Logo
7:35 am - 10:55 amLAX-ISP
24h 20m2 stops
$304Multiple Airlines
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Mon, Sep 29 - Fri, Oct 3
Multiple Airlines Logo
5:05 pm - 9:02 pmISP-LAS
30h 57m1 stop
Multiple Airlines Logo
5:14 pm - 10:55 amLAS-ISP
14h 41m2 stops
$329Multiple Airlines
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Wed, Oct 29 - Wed, Nov 5
Southwest Logo
4:55 pm - 10:05 pmISP-LAS
8h 10m1 stop
Southwest Logo
9:45 am - 10:05 pmLAS-ISP
9h 20m2 stops
$342Southwest
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Wed, Oct 29 - Wed, Nov 5
Southwest Logo
4:55 pm - 11:00 pmISP-LAS
9h 05m2 stops
Southwest Logo
9:45 am - 10:05 pmLAS-ISP
9h 20m2 stops
$347Southwest
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Sat, Nov 8 - Sun, Nov 16
Breeze Airways Logo
8:45 pm - 12:36 pmISP-SAN
18h 51m2 stops
Breeze Airways Logo
1:21 pm - 1:45 pmSAN-ISP
21h 24m1 stop
$474Breeze Airways
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Sat, Nov 8 - Sat, Nov 15
Breeze Airways Logo
8:45 pm - 12:36 pmISP-SAN
18h 51m2 stops
Breeze Airways Logo
1:12 pm - 6:56 pmSAN-ISP
26h 44m1 stop
$486Breeze Airways
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Booking Insights

KAYAK's insights & trends for Islip to California flights

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

What is the cheapest month to fly from Islip to California?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Islip to California, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Islip to California is April, when tickets cost $350 (return) on average. On the other hand, the most expensive months are November and December, when the average cost of round-trip tickets is $878 and $678 respectively.

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

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

If you are looking for a flight deal from Islip to California, look for departures on Thursdays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from California, Wednesday is the cheapest day to fly and Thursday is the most expensive.

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Good to know

Low seasonJuly
Cheapest flight$132
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 33% increase in price.
Flight from Islip to Los Angeles

FAQs - booking California flights

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

    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 Islip to California.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Islip to California 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 Islip to California?

    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 from Islip to California with an airline and back with another airline.

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

    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 from Islip to California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to California?

    The cheapest time of day to fly to California is generally in the morning, when round-trip flights cost $591 on average. Morning departures are around 13% cheaper than evening flights, on average. The most expensive time of day to fly to California is generally in the evening, which is peak travel time and where the average cost of a ticket is $678.

Reviews of the top airline flying from Islip to California

 
See real verified KAYAK customer reviews for airlines flying from Islip to California. 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 Islip to California? 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
7.0Food
8.0Comfort
7.5Entertainment
8.1Boarding
8.6Crew
Airline reviews

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

10.0 ExcellentGordon, Jul 2025GEG - OAK
Read more Southwest reviews

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

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

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

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

Great experience flying Southwest. The crew was really kind and helpful, and very friendly with our toddler.

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

I will be flying again Southwest Airlines. Friendly crew, comfortable and affordable.

Everything you need to know for your flight from Islip to California

Information on your arrival and departure airports

Islip (ISP)

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