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$71+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — LAX
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$140
(Booking.com)

One-way from

$71
(Frontier)

Popular in

December

Cheapest in

January

Average price

$366
Provider with most accurate pricing for New York (NYC)-Los Angeles flight deals.
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From Islip Long Island to California
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One-way flight from Islip Long Island to California
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Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 February 20, 2025.

This Booking.com deal was found by Cheapflights users on 2/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:51 pmISP - LAS
1 stop30h 49mFrontier
Mon 5/1211:45 pmLAS - ISP
1 stop31h 15mFrontier
Deal found 2/19$140
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/82:35 pmISP - LAS
2 stops12h 07mMultiple Airlines
Tue 3/1111:53 amLAS - ISP
2 stops23h 02mMultiple Airlines
Deal found 2/20$223
This Trip.com deal was found by Cheapflights users on 2/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/109:04 pmISP - SFO
2 stops28h 48mFrontier
Mon 3/175:58 pmSFO - ISP
2 stops23h 06mFrontier
Deal found 2/20$224
This Frontier deal was found by Cheapflights users on 2/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/110:50 amISP - LAX
1 stop11h 28mFrontier
Sat 4/58:18 pmLAX - ISP
1 stop8h 52mFrontier
Deal found 2/20$280
This JetBlue deal was found by Cheapflights users on 2/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:00 amISP - LAX
1 stop10h 15mJetBlue
Sun 5/117:20 amLAX - ISP
1 stop10h 48mJetBlue
Deal found 2/20$319
This Southwest deal was found by Cheapflights users on 2/19. 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 3/257:20 amISP - LAS
2 stops12h 35mSouthwest
Thu 3/276:05 amLAS - ISP
1 stop8h 20mSouthwest
Deal found 2/19$356
This Southwest deal was found by Cheapflights users on 2/20. 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 3/129:40 amISP - SFO
2 stops12h 50mSouthwest
Wed 3/197:00 amSFO - ISP
2 stops12h 35mSouthwest
Deal found 2/20$361
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/249:50 amISP - LAS
2 stops28h 41mBreeze Airways
Wed 2/2612:32 pmLAS - ISP
3 stops20h 44mBreeze Airways
Deal found 2/20$374
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/78:25 pmISP - SNA
3 stops40h 39mMultiple Airlines
Tue 3/116:45 amSNA - ISP
3 stops28h 10mMultiple Airlines
Deal found 2/20$398
This Southwest deal was found by Cheapflights users on 2/19. 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.
Wed 8/64:00 pmISP - LAX
1 stop9h 35mSouthwest
Sat 8/910:55 pmLAX - ISP
2 stops10h 35mSouthwest
Deal found 2/19$432
This Southwest deal was found by Cheapflights users on 2/20. 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 4/231:00 pmISP - SNA
2 stops11h 45mSouthwest
Thu 5/158:35 amSNA - ISP
2 stops11h 30mSouthwest
Deal found 2/20$459
This JetBlue deal was found by Cheapflights users on 2/19. 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.
Fri 5/26:00 amISP - SAN
1 stop10h 10mJetBlue
Wed 5/710:20 amSAN - ISP
1 stop7h 48mJetBlue
Deal found 2/19$463

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 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Islip

Fly to

California

Route

Depart

Return

Price

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Thu 5/8

6:51 pm-10:40 pm

1 stop30h 49m

Las Vegas Harry Reid Intl

Mon 5/12

11:45 pm-10:00 am

1 stop31h 15m

$140

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sat 3/8

2:35 pm-11:42 pm

2 stops12h 07m

Las Vegas Harry Reid Intl

Tue 3/11

11:53 am-1:55 pm

2 stops23h 02m

$223

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Mon 3/10

9:04 pm-10:52 pm

2 stops28h 48m

San Francisco

Mon 3/17

5:58 pm-8:04 pm

2 stops23h 06m

$224

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Tue 4/1

10:50 am-7:18 pm

1 stop11h 28m

Los Angeles

Sat 4/5

8:18 pm-8:10 am

1 stop8h 52m

$280

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 5/8

6:00 am-1:15 pm

1 stop10h 15m

Los Angeles

Sun 5/11

7:20 am-9:08 pm

1 stop10h 48m

$319

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Tue 3/25

7:20 am-4:55 pm

2 stops12h 35m

Las Vegas Harry Reid Intl

Thu 3/27

6:05 am-5:25 pm

1 stop8h 20m

$356

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Wed 3/12

9:40 am-7:30 pm

2 stops12h 50m

San Francisco

Wed 3/19

7:00 am-10:35 pm

2 stops12h 35m

$361

IslipSanta Ana

ISP - SNA

ISPSNA

Islip Long Island

Fri 3/7

8:25 pm-10:04 am

3 stops40h 39m

Santa Ana J. Wayne/Orange Cnty

Tue 3/11

6:45 am-1:55 pm

3 stops28h 10m

$398

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Wed 8/6

4:00 pm-10:35 pm

1 stop9h 35m

Los Angeles

Sat 8/9

10:55 pm-12:30 pm

2 stops10h 35m

$432

IslipSanta Ana

ISP - SNA

ISPSNA

Islip Long Island

Wed 4/23

1:00 pm-9:45 pm

2 stops11h 45m

Santa Ana J. Wayne/Orange Cnty

Thu 5/15

8:35 am-11:05 pm

2 stops11h 30m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 37 results
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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, 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 $344). 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 February 20, 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 February 20, 2025.
See what other customers who have flown with Southwest, Breeze Airways 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.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Breeze Airways
8.1
Very good
150 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Frontier
6.0
Okay
3,355 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 ($71), JetBlue ($126), and Southwest ($214).

  • 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 Diego.

  • 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 $344). 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

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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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$426Average$726FlexibilityNo cancel feeOn-time63%
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