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Islip

$92+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 December 18, 2025.

This CheapOair deal was found by Cheapflights users on 12/17. 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 12/3110:20 pmLAS - ISP
1 stop10h 05mFrontier
Mon 1/58:24 pmISP - LAS
1 stop16h 19mFrontier
Deal found 12/17$249
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Sun 12/2810:20 pmLAS - ISP
1 stop18h 20mFrontier
Mon 1/52:04 pmISP - LAS
1 stop22h 39mFrontier
Deal found 12/16$343
This CheapOair deal was found by Cheapflights users on 12/17. 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 12/3111:59 pmLAX - ISP
1 stop8h 26mFrontier
Sun 1/42:04 pmISP - LAX
1 stop30h 59mFrontier
Deal found 12/17$388
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Mon 12/2911:59 pmLAX - ISP
1 stop8h 26mFrontier
Sun 1/48:24 pmISP - LAX
1 stop24h 39mFrontier
Deal found 12/16$394
This CheapOair deal was found by Cheapflights users on 12/15. 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 12/183:54 pmLAS - ISP
1 stop24h 46mFrontier
Sun 12/218:35 pmISP - LAS
1 stop15h 40mFrontier
Deal found 12/15$413
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Tue 12/3011:59 pmLAX - ISP
1 stop13h 38mFrontier
Sun 1/48:24 pmISP - LAX
1 stop24h 39mFrontier
Deal found 12/16$414
This Expedia deal was found by Cheapflights users on 12/16. 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.
Thu 12/183:54 pmLAS - ISP
1 stop24h 46mFrontier
Tue 12/3012:20 pmISP - LAS
1 stop24h 23mFrontier
Deal found 12/16$433
This CheapOair deal was found by Cheapflights users on 12/15. 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.
Fri 12/1911:59 pmLAX - ISP
1 stop14h 56mFrontier
Mon 12/222:04 pmISP - LAX
1 stop30h 59mFrontier
Deal found 12/15$434
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Sun 12/2810:20 pmLAS - ISP
1 stop18h 20mFrontier
Fri 1/22:04 pmISP - LAS
1 stop21h 21mFrontier
Deal found 12/16$438
This CheapOair deal was found by Cheapflights users on 12/16. 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 12/1811:03 pmLAS - ISP
1 stop17h 37mFrontier
Mon 12/222:04 pmISP - LAS
1 stop22h 39mFrontier
Deal found 12/16$443
This CheapOair deal was found by Cheapflights users on 12/15. 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.
Fri 12/1911:59 pmLAX - ISP
1 stop14h 56mFrontier
Sun 12/218:35 pmISP - LAX
1 stop24h 28mFrontier
Deal found 12/15$448
This CheapOair deal was found by Cheapflights users on 12/16. 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 12/2411:59 pmLAX - ISP
1 stop8h 26mFrontier
Sun 1/48:24 pmISP - LAX
1 stop24h 39mFrontier
Deal found 12/16$473

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 December 18, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$166
(CheapOair)

One-way from

$92
(CheapOair)

Popular in

December

Cheapest in

January

Average price

$411
Provider with most accurate pricing for Los Angeles-New York (NYC) flight deals.
Search Deals
Provider most trusted by Cheapflights users for 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. 5% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 18, 2025.
Use the filters below to find and compare flights from California to Islip that are best for you.

Fly from

California

Fly to

Islip

Route

Depart

Return

Price

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 2/24

11:03 pm-1:13 pm

1 stop11h 10m

Islip Long Island

Thu 2/26

3:34 pm-10:15 am

1 stop21h 41m

$166

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Mon 1/12

10:45 pm-10:46 pm

1 stop21h 01m

Islip Long Island

Wed 1/14

8:00 am-10:10 am

1 stop29h 10m

$183

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Mon 1/12

11:20 pm-10:46 pm

2 stops20h 26m

Islip Long Island

Mon 1/26

7:43 pm-11:41 pm

2 stops30h 58m

$216

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Fri 1/9

10:45 pm-7:08 pm

1 stop17h 23m

Islip Long Island

Tue 1/13

8:00 am-11:42 am

1 stop30h 42m

$218

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Thu 3/5

11:03 pm-12:47 pm

1 stop10h 44m

Islip Long Island

Mon 3/9

1:22 pm-10:49 pm

1 stop12h 27m

$221

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Thu 1/15

11:03 pm-8:09 pm

1 stop18h 06m

Islip Long Island

Sat 1/17

8:00 am-10:10 am

1 stop29h 10m

$223

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Wed 12/31

10:20 pm-11:25 am

1 stop10h 05m

Islip Long Island

Mon 1/5

8:24 pm-9:43 am

1 stop16h 19m

$249

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Mon 1/12

10:45 pm-10:46 pm

1 stop21h 01m

Islip Long Island

Fri 1/16

8:54 pm-11:42 am

1 stop17h 48m

$252

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Sun 1/4

10:20 pm-1:09 pm

1 stop11h 49m

Islip Long Island

Sat 1/10

7:56 pm-10:25 am

1 stop17h 29m

$283

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 1/7

1:48 pm-7:45 pm

2 stops26h 57m

Islip Long Island

Sat 1/10

7:56 pm-12:48 pm

2 stops19h 52m

$292

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 60 results
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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

What is the cheapest month to book a flight from California to Islip, New York?

Currently, January is the cheapest month in which you can book a flight from California to Islip, New York (average of $64). Flying from California to Islip, New York in December is currently the most expensive (average of $148). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CA to ISP?

Find hourly flight availability from California to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

When flying from California to Islip, New York, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 49% versus a flight in the morning.

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

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 6h 55m. Fly via Frontier, JetBlue, or Southwest to get the fastest option. California and Islip, New York are separated by a distance of 2475 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 Los Angeles - Islip Long Island. You may also consider Las Vegas Harry Reid Intl - Islip Long Island or Oakland - 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.

  • What is the cheapest month to book a flight from California to Islip, New York?

    Currently, January is the cheapest month in which you can book a flight from California to Islip, New York (average of $64). Flying from California to Islip, New York in December is currently the most expensive (average of $148). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$380Average$554FlexibilityNo cancel feeOn-time63%

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