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Islip

$141+ 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 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from California to Islip

Keep the following information in mind while searching for California to Islip flight deals. Data was last updated junio 12, 2025.

Round-trip from

$332
(Frontier)

One-way from

$141
(JetBlue)

Popular in

December

Cheapest in

January

Average price

$391
From California to Islip Long Island
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One-way flight from California to Islip Long Island
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Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 junio 12, 2025.

This Frontier deal was found by Cheapflights users on 6/11. 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.
mar. 10/710:22 pmLAS - ISP
1 stop9h 15mFrontier
lun. 10/138:48 pmISP - LAS
1 stop15h 54mFrontier
Deal found 6/11$332
This JetBlue deal was found by Cheapflights users on 6/11. 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.
lun. 7/2810:15 pmLAX - ISP
1 stop10h 26mJetBlue
mar. 8/512:35 pmISP - LAX
1 stop14h 24mJetBlue
Deal found 6/11$338
This Southwest deal was found by Cheapflights users on 6/12. 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.
lun. 11/1011:40 pmLAS - ISP
2 stops9h 35mSouthwest
vie. 11/145:30 pmISP - LAS
1 stop8h 45mSouthwest
Deal found 6/12$339
This Southwest deal was found by Cheapflights users on 6/10. 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.
mié. 8/275:55 amSFO - ISP
2 stops12h 10mSouthwest
sáb. 8/3012:20 pmISP - SFO
1 stop9h 00mSouthwest
Deal found 6/10$348
This CheapOair deal was found by Cheapflights users on 6/11. 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.
mié. 8/272:15 pmLAX - ISP
1 stop30h 44mFrontier
jue. 9/411:27 amISP - LAX
1 stop24h 01mFrontier
Deal found 6/11$356
This Southwest deal was found by Cheapflights users on 6/11. 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.
dom. 9/2111:15 pmLAX - ISP
2 stops9h 45mSouthwest
mar. 9/2312:30 pmISP - LAX
2 stops10h 30mSouthwest
Deal found 6/11$372
This JetBlue deal was found by Cheapflights users on 6/11. 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.
lun. 11/1011:59 pmSFO - ISP
1 stop9h 21mJetBlue
mar. 11/181:15 pmISP - SFO
1 stop12h 33mJetBlue
Deal found 6/11$404
This Southwest deal was found by Cheapflights users on 6/11. 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.
mar. 8/58:00 amSMF - ISP
2 stops11h 05mSouthwest
mar. 8/126:05 amISP - SMF
2 stops12h 05mSouthwest
Deal found 6/11$437
This FlightHub deal was found by Cheapflights users on 6/10. 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.
sáb. 6/148:53 pmSFO - ISP
1 stop19h 43mFrontier
sáb. 6/218:21 pmISP - SFO
1 stop16h 58mFrontier
Deal found 6/10$456
This Frontier deal was found by Cheapflights users on 6/9. 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.
dom. 8/1712:59 amONT - ISP
2 stops15h 53mFrontier
lun. 8/258:59 amISP - ONT
2 stops12h 35mFrontier
Deal found 6/9$463
This Southwest deal was found by Cheapflights users on 6/11. 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.
mar. 7/156:50 amOAK - ISP
2 stops13h 05mSouthwest
lun. 8/42:40 pmISP - OAK
2 stops10h 35mSouthwest
Deal found 6/11$472
This Trip.com deal was found by Cheapflights users on 6/11. 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.
jue. 7/312:34 pmBUR - ISP
2 stops28h 02mMultiple Airlines
sáb. 7/58:37 pmISP - BUR
2 stops40h 10mMultiple Airlines
Deal found 6/11$484

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 junio 12, 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

mar. 10/7

10:22 pm-10:37 am

1 stop9h 15m

Islip Long Island

lun. 10/13

8:48 pm-9:42 am

1 stop15h 54m

$332

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

lun. 7/28

10:15 pm-11:41 am

1 stop10h 26m

Islip Long Island

mar. 8/5

12:35 pm-11:59 pm

1 stop14h 24m

$338

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

lun. 11/10

11:40 pm-12:15 pm

2 stops9h 35m

Islip Long Island

vie. 11/14

5:30 pm-11:15 pm

1 stop8h 45m

$339

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

mié. 8/27

5:55 am-9:05 pm

2 stops12h 10m

Islip Long Island

sáb. 8/30

12:20 pm-6:20 pm

1 stop9h 00m

$348

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

mié. 8/27

2:15 pm-11:59 pm

1 stop30h 44m

Islip Long Island

jue. 9/4

11:27 am-8:28 am

1 stop24h 01m

$356

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

dom. 9/21

11:15 pm-12:00 pm

2 stops9h 45m

Islip Long Island

mar. 9/23

12:30 pm-8:00 pm

2 stops10h 30m

$372

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

lun. 11/10

11:59 pm-12:20 pm

1 stop9h 21m

Islip Long Island

mar. 11/18

1:15 pm-10:48 pm

1 stop12h 33m

$404

SacramentoIslip

SMF - ISP

SMFISP

Sacramento Intl

mar. 8/5

8:00 am-10:05 pm

2 stops11h 05m

Islip Long Island

mar. 8/12

6:05 am-3:10 pm

2 stops12h 05m

$437

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

mié. 8/20

6:50 am-11:41 pm

2 stops13h 51m

Islip Long Island

lun. 8/25

8:59 am-9:21 pm

2 stops15h 22m

$457

OntarioIslip

ONT - ISP

ONTISP

Ontario

dom. 8/17

12:59 am-7:52 pm

2 stops15h 53m

Islip Long Island

lun. 8/25

8:59 am-6:34 pm

2 stops12h 35m

$463

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 56 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 $108). Flying from California to Islip, New York in November is currently the most expensive (average of $213). 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 junio 12, 2025.

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

Rainfall in Islip by month

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

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

Temperature in Islip by month

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

If weather is an important factor for your trip to Islip, New York, 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 30.2 F).

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated junio 12, 2025.
See what other customers who have flown with Breeze Airways, Southwest and JetBlue from California to Islip have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

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
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

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
4,287 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

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
2,925 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

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
3,295 reviews
Breeze Airways
8.1
Very good
178 reviews

Overall

8.1

Food

6.7

Boarding

8.3

Comfort

8.2

Entertainment

6.6

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 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.

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

    One-way options have recently been found by users for as low as $141 on JetBlue. Other airlines that offer cheap prices include Southwest from $154 and Frontier from $178 one-way.

  • 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 San Francisco - Islip Long Island or Ontario - 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 $108). Flying from California to Islip, New York in November is currently the most expensive (average of $213). 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 California?

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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$323Average$541FlexibilityNo cancel feeOn-time63%

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