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Islip

$115+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
Jul 16 — Jul 231
Wed 7/16
Wed 7/23
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 July 11, 2025.

Round-trip from

$244
(Southwest)

One-way from

$115
(Southwest)

Popular in

December

Cheapest in

January

Average price

$384
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. 4% potential increase in price ($16 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 July 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 July 11, 2025.

This Southwest deal was found by Cheapflights users on 7/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1811:45 pmLAX - ISP
2 stops9h 10mSouthwest
Wed 8/204:00 pmISP - LAX
1 stop9h 35mSouthwest
Deal found 7/9$244
This JetBlue deal was found by Cheapflights users on 7/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2510:15 pmLAX - ISP
1 stop10h 26mJetBlue
Fri 8/2911:40 amISP - LAX
1 stop11h 24mJetBlue
Deal found 7/10$261
This JetBlue deal was found by Cheapflights users on 7/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/289:45 pmSFO - ISP
1 stop10h 33mJetBlue
Fri 10/3112:15 pmISP - SFO
1 stop14h 09mJetBlue
Deal found 7/9$279
This Southwest deal was found by Cheapflights users on 7/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2612:00 pmLAS - ISP
1 stop7h 05mSouthwest
Sun 8/311:25 pmISP - LAS
1 stop9h 50mSouthwest
Deal found 7/9$303
This Southwest deal was found by Cheapflights users on 7/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:50 pmSFO - ISP
2 stops12h 45mSouthwest
Sun 9/76:00 amISP - SFO
2 stops12h 45mSouthwest
Deal found 7/9$313
This FlightHub deal was found by Cheapflights users on 7/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/33:15 pmLAS - ISP
1 stop16h 25mFrontier
Tue 9/2311:25 amISP - LAS
1 stop31h 14mFrontier
Deal found 7/9$315
This Frontier deal was found by Cheapflights users on 7/8. 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.
Sun 8/242:15 pmLAX - ISP
1 stop14h 53mFrontier
Tue 9/26:05 amISP - LAX
1 stop9h 55mFrontier
Deal found 7/8$321
This Southwest deal was found by Cheapflights users on 7/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/610:20 amOAK - ISP
2 stops10h 25mSouthwest
Thu 10/95:55 amISP - OAK
2 stops11h 45mSouthwest
Deal found 7/9$333
This Southwest deal was found by Cheapflights users on 7/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:15 amSNA - ISP
2 stops11h 50mSouthwest
Tue 10/2811:40 amISP - SNA
2 stops10h 50mSouthwest
Deal found 7/9$333
This Frontier deal was found by Cheapflights users on 7/8. 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 7/225:15 pmONT - ISP
2 stops19h 27mFrontier
Tue 7/298:00 amISP - ONT
2 stops18h 50mFrontier
Deal found 7/8$383
This Frontier deal was found by Cheapflights users on 7/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/143:42 pmSFO - ISP
2 stops18h 22mFrontier
Mon 8/258:59 amISP - SFO
2 stops15h 22mFrontier
Deal found 7/10$389
This Southwest deal was found by Cheapflights users on 7/10. 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.
Sat 8/99:10 pmSAN - ISP
1 stop12h 20mSouthwest
Sat 8/1612:55 pmISP - SAN
1 stop9h 15mSouthwest
Deal found 7/10$395

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 July 11, 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

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 8/18

11:45 pm-11:55 am

2 stops9h 10m

Islip Long Island

Wed 8/20

4:00 pm-10:35 pm

1 stop9h 35m

$244

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 8/25

10:15 pm-11:41 am

1 stop10h 26m

Islip Long Island

Fri 8/29

11:40 am-8:04 pm

1 stop11h 24m

$261

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Tue 8/26

9:25 pm-11:41 am

1 stop11h 16m

Islip Long Island

Fri 10/31

12:15 pm-11:24 pm

1 stop14h 09m

$299

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 8/26

12:00 pm-10:05 pm

1 stop7h 05m

Islip Long Island

Sun 8/31

1:25 pm-8:15 pm

1 stop9h 50m

$303

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 9/4

7:50 pm-11:35 am

2 stops12h 45m

Islip Long Island

Sun 9/7

6:00 am-3:45 pm

2 stops12h 45m

$313

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Wed 9/3

3:15 pm-10:40 am

1 stop16h 25m

Islip Long Island

Tue 9/23

11:25 am-3:39 pm

1 stop31h 14m

$315

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Sun 8/24

2:15 pm-8:08 am

1 stop14h 53m

Islip Long Island

Tue 9/2

6:05 am-1:00 pm

1 stop9h 55m

$321

OaklandIslip

OAK - ISP

OAKISP

Oakland

Mon 10/6

10:20 am-11:45 pm

2 stops10h 25m

Islip Long Island

Thu 10/9

5:55 am-2:40 pm

2 stops11h 45m

$333

Santa AnaIslip

SNA - ISP

SNAISP

Santa Ana J. Wayne/Orange Cnty

Tue 10/21

7:15 am-10:05 pm

2 stops11h 50m

Islip Long Island

Tue 10/28

11:40 am-7:30 pm

2 stops10h 50m

$333

OntarioIslip

ONT - ISP

ONTISP

Ontario

Tue 7/22

5:15 pm-3:42 pm

2 stops19h 27m

Islip Long Island

Tue 7/29

8:00 am-11:50 pm

2 stops18h 50m

$383

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

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 July 11, 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.

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 July 11, 2025.
See what other customers who have flown with Southwest, Breeze Airways, 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.
Southwest
8.0
Very good
4,250 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Breeze Airways
8.0
Very good
187 reviews
Southwest
8.0
Very good
4,250 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,910 reviews
Southwest
8.0
Very good
4,250 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Frontier
5.9
Fair
3,271 reviews
Southwest
8.0
Very good
4,250 reviews

Food

7.0

Comfort

8.0

Overall

8.0

Boarding

8.1

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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 $115 on Southwest. Other airlines that offer cheap prices include JetBlue from $141 and Frontier from $143 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 San Francisco - Islip Long Island. You may also consider Los Angeles - Islip Long Island or Las Vegas Harry Reid Intl - 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?

Book flights to California if you plan to visit one of these locations
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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 July 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$323Average$527FlexibilityNo cancel feeOn-time63%

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