$90 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 3/2. 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 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$268
San Francisco
San Francisco1 stop$539
San Diego
San Diego1 stop$448
San Jose
San Jose2 stops$770
Los Angeles
Los Angeles1 stop$268
San Francisco
San Francisco1 stop$539
San Diego
San Diego1 stop$448
San Jose
San Jose2 stops$770

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

Fri, Feb 27 - Mon, Mar 2
Frontier Logo
3:34 pm - 10:31 am
ISP
-
LAS
21h 57m
1 stop
Frontier Logo
11:03 pm - 8:40 am
LAS
-
ISP
30h 37m
1 stop
$229Frontier
Sun, Apr 26 - Wed, Apr 29
Frontier Logo
4:07 pm - 10:36 pm
ISP
-
LAS
9h 29m
1 stop
Frontier Logo
11:34 pm - 2:55 pm
LAS
-
ISP
12h 21m
1 stop
$256Frontier
Thu, Mar 5 - Sun, Mar 8
Frontier Logo
3:34 pm - 7:01 pm
ISP
-
LAX
30h 27m
1 stop
Frontier Logo
10:43 pm - 12:33 pm
LAX
-
ISP
10h 50m
1 stop
$268Frontier
Thu, Apr 16 - Sat, Apr 18
Frontier Logo
4:07 pm - 10:36 pm
ISP
-
LAS
9h 29m
1 stop
Frontier Logo
11:34 pm - 2:55 pm
LAS
-
ISP
12h 21m
1 stop
$277Frontier
Thu, Apr 23 - Sun, Apr 26
Frontier Logo
4:07 pm - 10:36 pm
ISP
-
LAS
9h 29m
1 stop
Frontier Logo
11:34 pm - 2:55 pm
LAS
-
ISP
12h 21m
1 stop
$290Frontier
Tue, Mar 3 - Thu, Mar 5
Southwest Logo
12:40 pm - 9:00 pm
ISP
-
SNA
11h 20m
2 stops
Southwest Logo
10:10 am - 11:55 pm
SNA
-
ISP
10h 45m
2 stops
$390Southwest
Sun, Mar 15 - Fri, Mar 20
Southwest Logo
5:55 pm - 11:40 pm
ISP
-
LAX
8h 45m
1 stop
Southwest Logo
5:00 am - 5:20 pm
LAX
-
ISP
9h 20m
1 stop
$447Southwest
Tue, Mar 3 - Sun, Mar 15
JetBlue Logo
1:27 pm - 11:59 pm
ISP
-
SFO
13h 32m
1 stop
JetBlue Logo
10:57 am - 11:46 pm
SFO
-
ISP
9h 49m
1 stop
$539JetBlue
Tue, Mar 3 - Sun, Mar 15
JetBlue Logo
1:27 pm - 11:59 pm
ISP
-
SFO
13h 32m
1 stop
JetBlue Logo
10:57 am - 11:46 pm
SFO
-
ISP
9h 49m
1 stop
$1,095JetBlue
Thu, Mar 12 - Sun, Mar 15
Breeze Airways Logo
7:26 pm - 4:20 pm
ISP
-
SNA
23h 54m
2 stops
Breeze Airways Logo
7:45 am - 1:31 pm
SNA
-
ISP
26h 46m
3 stops
$1,104Breeze Airways
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.

How much is a round-trip flight from Islip, New York to California?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Islip, New York to California departing in March.
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Good to know

Low seasonDecember
Cheapest flight$90
Best time to beat the crowds but there is an average 36% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Islip to Las Vegas

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.

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 4267 reviews
8.6Crew
7.0Food
7.5Entertainment
8.1Boarding
8.0Comfort
Airline reviews

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

2.0 MediocreAnonymous, Jan 2026
SFO - SAN
Read more Southwest reviews

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

The flight crew was extremely rude and especially not helpful when our flight was delayed.

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.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

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

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.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Connecting flight is on time and boarding was a breeze!

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

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

Information on your arrival and departure airports

Islip (ISP)