HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
California

$97+ Cheap flights from Islip, NY (ISP) to California

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — LAX
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Islip to California with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Islip to California

Keep the following information in mind while searching for Islip to California flight deals. Data was last updated April 29, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$201
(CheapOair)

One-way from

$97
(CheapOair)

Popular in

December

Cheapest in

September

Average price

$408
Provider with most accurate pricing for New York (NYC)-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Los Angeles flights.
Search Deals
From Islip Long Island to California
Search Deals
One-way flight from Islip Long Island to California
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Islip to California

Cheapest flights from Islip to California
Explore the most affordable flight options available from Islip to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This CheapOair deal was found by Cheapflights users on 4/28. 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 5/77:15 pmISP - LAX
1 stop25h 28mFrontier
Mon 5/124:59 pmLAX - ISP
1 stop14h 42mFrontier
Deal found 4/28$181
This CheapOair deal was found by Cheapflights users on 4/29. 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 5/67:15 pmISP - SFO
1 stop21h 00mFrontier
Sat 5/109:59 pmSFO - ISP
1 stop9h 13mFrontier
Deal found 4/29$201
This CheapOair deal was found by Cheapflights users on 4/28. 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 5/137:15 pmISP - LAS
1 stop30h 25mFrontier
Mon 5/1911:51 pmLAS - ISP
1 stop8h 35mFrontier
Deal found 4/28$250
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/43:05 pmISP - LAS
2 stops9h 45mSouthwest
Wed 9/107:45 amLAS - ISP
1 stop10h 20mSouthwest
Deal found 4/29$356
This JetBlue deal was found by Cheapflights users on 4/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/32:39 pmISP - LAX
1 stop12h 20mJetBlue
Mon 7/710:15 pmLAX - ISP
1 stop12h 28mJetBlue
Deal found 4/28$358
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/165:55 amISP - LAX
1 stop9h 40mSouthwest
Tue 10/219:50 amLAX - ISP
1 stop9h 15mSouthwest
Deal found 4/28$370
This Gotogate deal was found by Cheapflights users on 4/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/131:55 pmISP - SFO
3 stops24h 44mMultiple Airlines
Sat 5/179:59 pmSFO - ISP
1 stop9h 13mMultiple Airlines
Deal found 4/27$430
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/110:25 amISP - SFO
2 stops13h 10mSouthwest
Fri 6/610:45 pmSFO - ISP
2 stops9h 50mSouthwest
Deal found 4/29$449
This JetBlue deal was found by Cheapflights users on 4/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/202:39 pmISP - SFO
1 stop11h 57mJetBlue
Mon 7/289:25 pmSFO - ISP
1 stop13h 18mJetBlue
Deal found 4/29$457
This Mytrip deal was found by Cheapflights users on 4/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/157:49 pmISP - LAX
3 stops38h 05mMultiple Airlines
Wed 6/186:02 pmLAX - ISP
2 stops22h 02mMultiple Airlines
Deal found 4/28$486
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/210:44 amISP - LAS
1 stop27h 34mMultiple Airlines
Sun 6/83:25 pmLAS - ISP
1 stop25h 16mMultiple Airlines
Deal found 4/29$489
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/110:25 amISP - LGB
2 stops11h 20mSouthwest
Fri 6/69:05 amLGB - ISP
2 stops12h 00mSouthwest
Deal found 4/29$497

Cheapflights Fare Finder

Customize your flight search to find flights from Islip to California 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 April 29, 2025.
Use the filters below to find and compare flights from Islip to California that are best for you.

Fly from

Islip

Fly to

California

Route

Depart

Return

Price

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Tue 5/13

7:15 pm-1:15 pm

1 stop21h 00m

San Francisco

Sat 5/17

9:59 pm-10:12 am

1 stop9h 13m

$201

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Sat 5/10

7:15 pm-5:43 pm

1 stop25h 28m

Los Angeles

Sun 5/18

4:59 pm-10:12 am

1 stop14h 13m

$201

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 5/13

7:15 pm-10:40 pm

1 stop30h 25m

Las Vegas Harry Reid Intl

Mon 5/19

11:51 pm-11:26 am

1 stop8h 35m

$250

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Thu 9/4

3:05 pm-11:10 pm

1 stop11h 05m

Las Vegas Harry Reid Intl

Wed 9/10

7:45 am-9:05 pm

1 stop10h 20m

$356

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 7/3

2:39 pm-11:59 pm

1 stop12h 20m

Los Angeles

Mon 7/7

10:15 pm-1:43 pm

1 stop12h 28m

$358

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 10/16

5:55 am-12:35 pm

1 stop9h 40m

Los Angeles

Tue 10/21

9:50 am-10:05 pm

1 stop9h 15m

$370

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Tue 5/13

1:55 pm-11:39 am

3 stops24h 44m

San Francisco

Sat 5/17

9:59 pm-10:12 am

1 stop9h 13m

$430

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Sun 7/20

2:39 pm-11:36 pm

1 stop11h 57m

San Francisco

Mon 7/28

9:25 pm-1:43 pm

1 stop13h 18m

$457

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Sun 6/15

7:49 pm-6:54 am

3 stops38h 05m

Los Angeles

Wed 6/18

6:02 pm-7:04 pm

2 stops22h 02m

$486

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Mon 6/2

10:44 am-11:18 am

1 stop27h 34m

Las Vegas Harry Reid Intl

Sun 6/8

3:25 pm-7:41 pm

1 stop25h 16m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 38 results
1
2
3
4

Best time to book a flight from Islip to California

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

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to California (average of $246). Flying from Islip, New York to California in March is currently the most expensive (average of $327). 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 ISP to CA?

Find hourly flight availability from Islip to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to California as you normally would.

Rainfall in California by month

Plan your trip to California by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in California ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit California when rainfall is around 0.0 in.

Temperature in California by month

Plan your trip to California by taking into account the average temperature totals by month.

If weather is an important factor for your trip to California, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing California

Get insights into the airlines that provide service to California. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to California. Reviews last updated April 29, 2025.
See what other customers who have flown with Breeze Airways, Southwest and JetBlue from Islip to California have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
160 reviews

Entertainment

6.6

Comfort

8.2

Food

6.7

Boarding

8.3

Overall

8.1

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
160 reviews
Breeze Airways
8.1
Very good
160 reviews

Entertainment

6.6

Comfort

8.2

Food

6.7

Boarding

8.3

Overall

8.1

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Southwest
8.0
Very good
4,295 reviews
Breeze Airways
8.1
Very good
160 reviews

Entertainment

6.6

Comfort

8.2

Food

6.7

Boarding

8.3

Overall

8.1

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
JetBlue
7.3
Good
2,922 reviews
Breeze Airways
8.1
Very good
160 reviews

Entertainment

6.6

Comfort

8.2

Food

6.7

Boarding

8.3

Overall

8.1

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Frontier
6.0
Okay
3,287 reviews
Breeze Airways
8.1
Very good
160 reviews

Entertainment

6.6

Comfort

8.2

Food

6.7

Boarding

8.3

Overall

8.1

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

Related info for your journey

Find useful and relevant information for your journey from Islip to California. 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 from for flights from Islip to California?

    Most people fly from Islip Long Island (ISP) if they book a flight from Islip to California. Islip Long Island is conveniently located just 7.2 mi from Islip’s city center.

  • What are the cheapest airlines to fly from Islip, New York to California one-way?

    The cheapest airlines for a one-way flight from Islip, New York to California are Frontier ($97), JetBlue ($185), and Southwest ($204).

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to California 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 Islip, New York to California?

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to California (average of $246). Flying from Islip, New York to California in March is currently the most expensive (average of $327). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to California

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
LaGuardia to Fort Lauderdale flights
LaGuardia to Dallas/Fort Worth flights
John F Kennedy Intl to Miami flights
Newark to Fort Lauderdale flights
Newark to Las Vegas flights
LaGuardia to Miami flights
Newark to Miami flights
LaGuardia to O'Hare Intl flights
John F Kennedy Intl to Seattle flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to San Francisco flights
John F Kennedy Intl to Las Vegas flights
Newark to Los Angeles flights
John F Kennedy Intl to O'Hare Intl flights
Newark to Seattle flights
John F Kennedy Intl to Dallas/Fort Worth flights
Newark to Orlando flights
John F Kennedy Intl to Orlando flights
LaGuardia to Orlando flights
John F Kennedy Intl to Fort Lauderdale flights
John F Kennedy Intl to Atlanta flights
LaGuardia to Atlanta flights
Newark to Atlanta flights
Newark to O'Hare Intl flights
LaGuardia to Los Angeles flights
John F Kennedy Intl to Hobby flights
LaGuardia to Las Vegas flights
Newark to San Francisco flights
Newark to Denver flights
Newark to Hobby flights
John F Kennedy Intl to Sky Harbor Intl flights
LaGuardia to Hobby flights
Newark to Tampa flights
Newark to Midway flights
John F Kennedy Intl to Midway flights
John F Kennedy Intl to West Palm Beach flights
John F Kennedy Intl to Honolulu flights
John F Kennedy Intl to George Bush Intcntl flights
John F Kennedy Intl to Ontario flights
John F Kennedy Intl to Denver flights
John F Kennedy Intl to Tampa flights
LaGuardia to Seattle flights
Newark to Sky Harbor Intl flights
Newark to George Bush Intcntl flights
John F Kennedy Intl to Charlotte flights
LaGuardia to Denver flights
John F Kennedy Intl to Nashville flights
LaGuardia to San Francisco flights
John F Kennedy Intl to San Diego flights

Top airline flying from Islip to California

Discover the top airline that operate flights from Islip to California. 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$344Average$546FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.