HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
California

$144+ Cheap flights from Islip (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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — LAX
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
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

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to California (USCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

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 November 20, 2024.

This CheapOair deal was found by Cheapflights users on 11/18. 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 12/1312:43 pmISP - LAS
1 stop12h 11mFrontier
Mon 12/1611:40 pmLAS - ISP
1 stop17h 45mFrontier
Deal found 11/18$238
This Mytrip deal was found by Cheapflights users on 11/19. 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 12/87:34 pmISP - LAS
3 stops18h 48mBreeze Airways
Tue 12/1012:14 pmLAS - ISP
3 stops25h 57mBreeze Airways
Deal found 11/19$310
This Trip.com deal was found by Cheapflights users on 11/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1312:43 pmISP - LAX
2 stops21h 40mFrontier
Sun 12/156:30 amLAX - ISP
2 stops26h 02mFrontier
Deal found 11/19$317
This Mytrip deal was found by Cheapflights users on 11/19. 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 12/87:34 pmISP - LAS
2 stops19h 06mMultiple Airlines
Tue 12/1012:14 pmLAS - ISP
3 stops25h 57mMultiple Airlines
Deal found 11/19$370
This eDestinos deal was found by Cheapflights users on 11/18. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/163:05 pmISP - SJC
2 stops31h 44mMultiple Airlines
Mon 12/237:00 pmSJC - ISP
2 stops22h 25mMultiple Airlines
Deal found 11/18$401
This Trip.com deal was found by Cheapflights users on 11/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1312:43 pmISP - ONT
2 stops21h 31mFrontier
Sun 12/154:08 pmONT - ISP
2 stops16h 24mFrontier
Deal found 11/19$405
This Southwest deal was found by Cheapflights users on 11/20. 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.
Wed 12/184:30 pmISP - LAX
1 stop8h 40mSouthwest
Wed 12/255:35 amLAX - ISP
2 stops9h 45mSouthwest
Deal found 11/20$421
This Southwest deal was found by Cheapflights users on 11/19. 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.
Tue 12/106:25 amISP - SFO
2 stops13h 30mSouthwest
Wed 12/117:05 amSFO - ISP
2 stops12h 10mSouthwest
Deal found 11/19$438
This Southwest deal was found by Cheapflights users on 11/18. 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.
Wed 12/256:25 amISP - LGB
2 stops11h 55mSouthwest
Wed 1/88:05 amLGB - ISP
2 stops11h 10mSouthwest
Deal found 11/18$467
This JetBlue deal was found by Cheapflights users on 11/19. 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.
Wed 12/181:52 pmISP - SFO
1 stop13h 22mJetBlue
Tue 1/79:44 pmSFO - ISP
1 stop11h 01mJetBlue
Deal found 11/19$473
This Southwest deal was found by Cheapflights users on 11/20. 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.
Wed 12/1811:15 amISP - LAS
2 stops10h 40mSouthwest
Wed 12/2510:15 amLAS - ISP
2 stops9h 00mSouthwest
Deal found 11/20$496
This Trip.com deal was found by Cheapflights users on 11/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/24:53 pmISP - SFO
2 stops34h 18mFrontier
Thu 12/59:10 pmSFO - ISP
2 stops18h 08mFrontier
Deal found 11/19$498

Find flights from Islip to California within your budget

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 1/7

8:40 am-3:29 pm

1 stop9h 49m

Las Vegas Harry Reid Intl

Thu 1/9

11:40 pm-11:32 am

1 stop8h 52m

$146

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sun 12/8

7:34 pm-11:22 am

3 stops18h 48m

Las Vegas Harry Reid Intl

Tue 12/10

12:14 pm-5:11 pm

3 stops25h 57m

$310

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Fri 12/13

12:43 pm-7:23 am

2 stops21h 40m

Los Angeles

Sun 12/15

6:30 am-11:32 am

2 stops26h 02m

$317

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sun 12/8

7:34 pm-11:40 am

2 stops19h 06m

Las Vegas Harry Reid Intl

Tue 12/10

12:14 pm-5:11 pm

3 stops25h 57m

$370

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Sat 1/11

12:40 pm-11:59 pm

1 stop14h 19m

San Francisco

Thu 1/23

9:44 pm-11:45 am

1 stop11h 01m

$388

IslipSan Jose

ISP - SJC

ISPSJC

Islip Long Island

Mon 12/16

3:05 pm-7:49 pm

2 stops31h 44m

San Jose

Mon 12/23

7:00 pm-8:25 pm

2 stops22h 25m

$401

IslipOntario

ISP - ONT

ISPONT

Islip Long Island

Fri 12/13

12:43 pm-7:14 am

2 stops21h 31m

Ontario

Sun 12/15

4:08 pm-11:32 am

2 stops16h 24m

$405

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Wed 1/15

12:40 pm-10:45 pm

1 stop13h 05m

Las Vegas Harry Reid Intl

Tue 1/21

11:55 pm-11:45 am

1 stop8h 50m

$411

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Wed 12/18

4:30 pm-10:10 pm

1 stop8h 40m

Los Angeles

Wed 12/25

5:35 am-6:20 pm

2 stops9h 45m

$421

IslipSanta Ana

ISP - SNA

ISPSNA

Islip Long Island

Tue 4/22

8:20 am-5:05 pm

2 stops11h 45m

Santa Ana J. Wayne/Orange Cnty

Wed 4/30

6:30 pm-11:10 am

2 stops13h 40m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 43 results
1
2
3
...
5

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.

Travel insights for flights from Islip to California

Get recent, data-driven insights about flights from Islip to California including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Islip, New York to California (average of $240). Flying from Islip, New York to California in July is currently the most expensive (average of $321). 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 November 20, 2024.

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 November 20, 2024.
See what other customers who have flown with Frontier, JetBlue and Southwest 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
8.2
Very good
123 reviews

Food

6.7

Comfort

8.3

Entertainment

6.6

Overall

8.2

Boarding

8.4

Crew

8.9

Reviews

1 / 8

Good flight on Breeze, on time, comfortable, friendly pilot and crew

Breeze Airways
8.2
Very good
123 reviews
Breeze Airways
8.2
Very good
123 reviews

Food

6.7

Comfort

8.3

Entertainment

6.6

Overall

8.2

Boarding

8.4

Crew

8.9

Reviews

1 / 8

Good flight on Breeze, on time, comfortable, friendly pilot and crew

Southwest
8.1
Very good
5,014 reviews
Breeze Airways
8.2
Very good
123 reviews

Food

6.7

Comfort

8.3

Entertainment

6.6

Overall

8.2

Boarding

8.4

Crew

8.9

Reviews

1 / 8

Good flight on Breeze, on time, comfortable, friendly pilot and crew

JetBlue
7.5
Good
3,394 reviews
Breeze Airways
8.2
Very good
123 reviews

Food

6.7

Comfort

8.3

Entertainment

6.6

Overall

8.2

Boarding

8.4

Crew

8.9

Reviews

1 / 8

Good flight on Breeze, on time, comfortable, friendly pilot and crew

Frontier
6.1
Okay
3,539 reviews
Breeze Airways
8.2
Very good
123 reviews

Food

6.7

Comfort

8.3

Entertainment

6.6

Overall

8.2

Boarding

8.4

Crew

8.9

Reviews

1 / 8

Good flight on Breeze, on time, comfortable, friendly pilot and crew

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 ($144), JetBlue ($168), and Southwest ($240).

  • 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 - Las Vegas Harry Reid Intl. You may also consider Islip Long Island - Los Angeles or Islip Long Island - San Francisco.

  • 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, September is the cheapest month in which you can book a flight from Islip, New York to California (average of $240). Flying from Islip, New York to California in July is currently the most expensive (average of $321). 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.
LaGuardia to Fort Lauderdale flights
LaGuardia to Miami flights
Newark to Fort Lauderdale flights
John F Kennedy Intl to Miami flights
Newark to Miami flights
John F Kennedy Intl to Orlando flights
LaGuardia to Dallas/Fort Worth flights
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
Newark to Orlando flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to Fort Lauderdale flights
LaGuardia to Orlando flights
Newark to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to Atlanta flights
John F Kennedy Intl to San Francisco flights
John F Kennedy Intl to West Palm Beach flights
LaGuardia to Los Angeles flights
LaGuardia to Atlanta flights
Newark to Las Vegas flights
Newark to San Francisco flights
John F Kennedy Intl to O'Hare Intl flights
Newark to Tampa flights
John F Kennedy Intl to Denver flights
John F Kennedy Intl to Seattle flights
Newark to Hobby flights
Newark to Atlanta flights
LaGuardia to Hobby flights
LaGuardia to O'Hare Intl flights
LaGuardia to Denver flights
Newark to Seattle flights
Newark to West Palm Beach flights
LaGuardia to Las Vegas flights
John F Kennedy Intl to Sky Harbor Intl flights
LaGuardia to Tampa flights
John F Kennedy Intl to Tampa flights
John F Kennedy Intl to Salt Lake City flights
Newark to O'Hare Intl flights
LaGuardia to West Palm Beach flights
Newark to Sky Harbor Intl flights
Newark to Salt Lake City flights
Newark to Santa Ana flights
John F Kennedy Intl to Hobby flights
John F Kennedy Intl to Charlotte flights
Newark to George Bush Intcntl flights
John F Kennedy Intl to New Orleans flights
LaGuardia to San Francisco flights
Newark to Denver flights
John F Kennedy Intl to Austin flights
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.
View all available airlines