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Islip

$118+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 29, 2025.

Round-trip from

$259
(CheapOair)

One-way from

$118
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$358
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. 5% potential increase in price ($21 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 29, 2025.

This CheapOair deal was found by Cheapflights users on 7/29. 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 8/1211:02 pmLAS - ISP
1 stop13h 40mFrontier
Tue 8/196:05 amISP - LAS
1 stop30h 31mFrontier
Deal found 7/29$259
This JetBlue deal was found by Cheapflights users on 7/28. 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.
Mon 8/1810:15 pmLAX - ISP
1 stop10h 26mJetBlue
Wed 8/2712:35 pmISP - LAX
1 stop10h 29mJetBlue
Deal found 7/28$261
This CheapOair deal was found by Cheapflights users on 7/28. 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 8/202:15 pmLAX - ISP
1 stop25h 23mFrontier
Wed 8/278:00 amISP - LAX
1 stop27h 08mFrontier
Deal found 7/28$279
This CheapOair deal was found by Cheapflights users on 7/29. 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.
Thu 8/148:53 pmSFO - ISP
1 stop19h 49mFrontier
Sat 8/168:37 pmISP - SFO
1 stop16h 48mFrontier
Deal found 7/29$338
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:45 amLAX - ISP
2 stops13h 56mMultiple Airlines
Tue 8/266:05 amISP - LAX
2 stops29h 12mMultiple Airlines
Deal found 7/28$347
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/311:55 amLGB - ISP
1 stop7h 10mSouthwest
Mon 9/86:00 amISP - LGB
1 stop8h 55mSouthwest
Deal found 7/27$380
This Southwest deal was found by Cheapflights users on 7/28. 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 9/1811:25 amLAX - ISP
2 stops8h 30mSouthwest
Wed 9/244:00 pmISP - LAX
1 stop9h 35mSouthwest
Deal found 7/28$385
This Southwest deal was found by Cheapflights users on 7/26. 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 10/1611:30 amLAS - ISP
2 stops9h 15mSouthwest
Tue 10/214:55 pmISP - LAS
1 stop8h 10mSouthwest
Deal found 7/26$385
This JetBlue deal was found by Cheapflights users on 7/29. 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.
Thu 10/2310:15 pmSFO - ISP
1 stop9h 35mJetBlue
Mon 10/2712:15 pmISP - SFO
1 stop14h 09mJetBlue
Deal found 7/29$410
This Southwest deal was found by Cheapflights users on 7/28. 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 9/256:20 amSFO - ISP
2 stops13h 35mSouthwest
Sun 9/286:00 amISP - SFO
1 stop12h 40mSouthwest
Deal found 7/28$438
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2710:55 amONT - ISP
1 stop8h 10mSouthwest
Sat 8/3012:15 pmISP - ONT
1 stop9h 00mSouthwest
Deal found 7/27$449
This Southwest deal was found by Cheapflights users on 7/28. 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.
Wed 8/208:10 amBUR - ISP
2 stops10h 55mSouthwest
Wed 8/276:05 amISP - BUR
2 stops9h 05mSouthwest
Deal found 7/28$466

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 29, 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

Tue 8/12

11:02 pm-3:42 pm

1 stop13h 40m

Islip Long Island

Tue 8/19

6:05 am-9:36 am

1 stop30h 31m

$259

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 8/18

10:15 pm-11:41 am

1 stop10h 26m

Islip Long Island

Sat 8/30

11:40 am-8:04 pm

1 stop11h 24m

$261

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 8/20

2:15 pm-6:38 pm

1 stop25h 23m

Islip Long Island

Sat 9/20

5:05 pm-8:12 am

1 stop18h 07m

$279

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 8/14

8:53 pm-7:42 pm

1 stop19h 49m

Islip Long Island

Sat 8/16

8:37 pm-10:25 am

1 stop16h 48m

$338

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 8/20

6:45 am-11:41 pm

2 stops13h 56m

Islip Long Island

Tue 8/26

6:05 am-8:17 am

2 stops29h 12m

$347

Long BeachIslip

LGB - ISP

LGBISP

Long Beach Municipal

Wed 9/3

11:55 am-10:05 pm

1 stop7h 10m

Islip Long Island

Mon 9/8

6:00 am-11:55 am

1 stop8h 55m

$380

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 9/18

11:25 am-10:55 pm

2 stops8h 30m

Islip Long Island

Wed 9/24

4:00 pm-10:35 pm

1 stop9h 35m

$385

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Thu 10/16

11:30 am-11:45 pm

2 stops9h 15m

Islip Long Island

Tue 10/21

4:55 pm-10:05 pm

1 stop8h 10m

$385

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 10/23

10:15 pm-10:50 am

1 stop9h 35m

Islip Long Island

Mon 10/27

12:15 pm-11:24 pm

1 stop14h 09m

$410

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 9/25

6:20 am-10:55 pm

2 stops13h 35m

Islip Long Island

Sun 9/28

6:00 am-3:40 pm

1 stop12h 40m

$438

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 52 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 29, 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 29, 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
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Breeze Airways
8.0
Very good
190 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
JetBlue
7.3
Good
2,913 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.9
Fair
3,238 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 $118 on Frontier. Other airlines that offer cheap prices include JetBlue from $141 and Southwest from $172 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 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 Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Southampton

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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 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$323Average$532FlexibilityNo cancel feeOn-time63%

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