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Islip

$120+ Cheap flights from California to Islip, NY (ISP)

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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
1 adult, Economy
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Cheap flight deals from California to Islip

Cheapest flights from California to Islip
Explore the most affordable flight options available from California to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 27, 2026.

This Frontier deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:41 pm
LAS
-
ISP
1 stop9h 12m
Frontier
Sat 9/510:57 am
ISP
-
LAS
1 stop13h 47m
Frontier
Deal found 7/22$240
This Expedia deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:34 am
LAS
-
ISP
1 stop19h 19m
Frontier
Tue 9/810:57 am
ISP
-
LAS
1 stop24h 10m
Frontier
Deal found 7/26$250
This CheapOair deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:34 am
LAS
-
ISP
1 stop19h 19m
Frontier
Wed 9/94:13 pm
ISP
-
LAS
1 stop20h 13m
Frontier
Deal found 7/23$251
This Frontier deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Sat 9/510:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Deal found 7/22$275
This Expedia deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:20 pm
LAX
-
ISP
1 stop31h 33m
Frontier
Mon 9/77:09 pm
ISP
-
LAX
1 stop26h 03m
Frontier
Deal found 7/22$282
This Frontier deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Fri 9/410:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Deal found 7/22$288
This CheapOair deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:56 pm
LAX
-
ISP
1 stop8h 37m
Frontier
Mon 9/144:13 pm
ISP
-
LAX
1 stop29h 35m
Frontier
Deal found 7/24$293
This Frontier deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Tue 9/810:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Deal found 7/22$298
This Expedia deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:00 am
LAS
-
ISP
1 stop11h 49m
Multiple Airlines
Sat 8/227:09 pm
ISP
-
LAS
1 stop17h 12m
Multiple Airlines
Deal found 7/26$299
This Frontier deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Tue 9/810:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Deal found 7/22$305
This CheapOair deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:56 pm
LAX
-
ISP
1 stop8h 37m
Frontier
Sun 10/44:13 pm
ISP
-
LAX
1 stop29h 35m
Frontier
Deal found 7/24$309
This Frontier deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:20 pm
LAX
-
ISP
1 stop15h 54m
Frontier
Wed 8/2610:57 am
ISP
-
LAX
1 stop10h 15m
Frontier
Deal found 7/23$310

Find flight deals from California to Islip

Keep the following information in mind while searching for California to Islip flight deals. Data was last updated July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$240
(Frontier)

One-way from

$120
(Frontier)

Popular in

June

Cheapest in

January

Average price

$469
Provider with most accurate pricing for Los Angeles Los Angeles-New York (NYC) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-New York (NYC) flights.
Search Deals
From California to Islip Long Island
Search Deals
One-way flight from California to Islip Long Island
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($83 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 27, 2026.
Use the filters below to find and compare flights from California to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 9/1

9:41 pm-9:53 am

1 stop9h 12m

Islip Long Island

Sat 9/5

10:57 am-9:44 pm

1 stop13h 47m

$240

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 9/1

11:34 am-9:53 am

1 stop19h 19m

Islip Long Island

Tue 9/8

10:57 am-8:07 am

1 stop24h 10m

$250

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Tue 8/25

10:30 pm-10:15 am

1 stop8h 45m

Islip Long Island

Tue 9/1

6:05 am-11:35 am

1 stop8h 30m

$311

San DiegoIslip

SAN - ISP

SANISP

San Diego

Thu 10/1

6:45 am-5:00 pm

1 stop7h 15m

Islip Long Island

Sat 10/10

12:20 pm-8:55 pm

1 stop11h 35m

$316

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles Los Angeles

Thu 9/10

8:40 pm-9:40 am

2 stops10h 00m

Islip Long Island

Mon 9/14

4:05 pm-11:15 pm

2 stops10h 10m

$321
Quickest round-trip

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Thu 12/3

7:00 am-4:20 pm

1 stop6h 20m

Islip Long Island

Tue 12/8

6:00 am-10:35 am

1 stop7h 35m

$335

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Fri 9/4

11:59 am-9:53 am

1 stop18h 54m

Islip Long Island

Tue 9/8

5:27 pm-8:34 pm

2 stops30h 07m

$379

Santa AnaIslip

SNA - ISP

SNAISP

Santa Ana J. Wayne/Orange Cnty

Tue 9/15

7:55 pm-10:15 am

2 stops11h 20m

Islip Long Island

Tue 10/6

9:40 am-5:00 pm

2 stops10h 20m

$379

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Thu 10/29

12:25 pm-11:35 pm

1 stop8h 10m

Islip Long Island

Thu 12/3

4:00 pm-9:00 pm

1 stop8h 00m

$379

Santa AnaIslip

SNA - ISP

SNAISP

Santa Ana J. Wayne/Orange Cnty

Thu 8/20

8:45 pm-9:40 am

2 stops9h 55m

Islip Long Island

Thu 8/27

12:35 pm-7:35 pm

2 stops10h 00m

$382

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from California to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from California 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 California to Islip

How much does it cost to fly round-trip from California to Islip, New York?

Airfare is below average for this route at the moment.
California to Islip, New York flights typically cost between $368 and $561 in September.
The cheapest round-trip price found within the last 5 days was $275 on Frontier (Sep 2-Sep 5).

Related info for your journey

Find useful and relevant information for your journey from California to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Islip from California?

    If you book a flight to Islip from California, you will be flying to Long Island, which is the city’s only airport. Islip Long Island (ISP) is located 7.2 mi from the center of Islip.

  • How long is the flight from California to Islip, New York?

    There are many flights that can get you from California to Islip, New York in 8h 45m. Fly via Frontier or Southwest to get the fastest option. California and Islip, New York are separated by a distance of 2611 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from California to Islip, New York?

    The most popular route from California to Islip, New York is San Francisco - Islip Long Island. You may also consider Los Angeles Los Angeles - Islip Long Island or Las Vegas Harry Reid Intl - Islip Long Island.

  • Can I find deals for flights from California to Islip that include hotel bookings?

    Yes. In addition to deals on California to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from California to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Islip.

  • Can I find deals for business class flights from California to Islip?

    Yes. Cheapflights offers flight deals from California to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead

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Alternative routes for California to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from California to Islip

Discover the top airline that operate flights from California to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$318Average$604FlexibilityNo cancel feeOn-time63%

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