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Islip

$139+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ISP
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$259
(JetBlue)

One-way from

$139
(Frontier)

Popular in

June

Cheapest in

January

Average price

$367
Provider with most accurate pricing for Los Angeles-New York (NYC) flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-New York (NYC) flights.
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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. 12% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This JetBlue deal was found by Cheapflights users on 3/25. 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.
Sat 5/108:00 amSFO - ISP
1 stop10h 28mJetBlue
Tue 5/206:00 amISP - SFO
1 stop9h 44mJetBlue
Deal found 3/25$259
This Frontier deal was found by Cheapflights users on 3/25. 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 4/38:18 pmLAX - ISP
1 stop8h 52mFrontier
Tue 4/810:50 amISP - LAX
1 stop11h 28mFrontier
Deal found 3/25$278
This Frontier deal was found by Cheapflights users on 3/25. 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.
Fri 4/410:17 pmSFO - ISP
1 stop13h 11mFrontier
Sun 4/69:00 amISP - SFO
1 stop15h 30mFrontier
Deal found 3/25$288
This Booking.com deal was found by Cheapflights users on 3/25. 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.
Wed 4/211:49 pmLAS - ISP
1 stop17h 25mFrontier
Fri 4/49:04 pmISP - LAS
1 stop28h 39mFrontier
Deal found 3/25$298
This JetBlue deal was found by Cheapflights users on 3/25. 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 4/89:50 pmLAX - ISP
1 stop9h 04mJetBlue
Wed 4/2310:39 amISP - LAX
1 stop13h 01mJetBlue
Deal found 3/25$336
This JetBlue deal was found by Cheapflights users on 3/24. 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 5/2810:20 amSAN - ISP
1 stop8h 08mJetBlue
Sun 6/86:00 amISP - SAN
1 stop8h 24mJetBlue
Deal found 3/24$384
This Southwest deal was found by Cheapflights users on 3/25. 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.
Fri 4/256:35 amSAN - ISP
1 stop10h 45mSouthwest
Sun 4/275:45 amISP - SAN
1 stop7h 25mSouthwest
Deal found 3/25$419
This Southwest deal was found by Cheapflights users on 3/24. 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 4/305:35 amSMF - ISP
2 stops11h 45mSouthwest
Sun 5/410:25 amISP - SMF
1 stop7h 45mSouthwest
Deal found 3/24$419
This Southwest deal was found by Cheapflights users on 3/25. 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 6/186:00 amLAX - ISP
1 stop8h 00mSouthwest
Mon 6/305:45 pmISP - LAX
1 stop10h 15mSouthwest
Deal found 3/25$427
This Southwest deal was found by Cheapflights users on 3/25. 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 7/179:45 pmLAS - ISP
1 stop8h 40mSouthwest
Mon 7/2110:00 amISP - LAS
1 stop10h 10mSouthwest
Deal found 3/25$427
This Trip.com deal was found by Cheapflights users on 3/25. 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.
Thu 4/1011:40 pmLAX - ISP
2 stops17h 59mMultiple Airlines
Sun 4/138:04 pmISP - LAX
1 stop26h 14mMultiple Airlines
Deal found 3/25$430
This Southwest deal was found by Cheapflights users on 3/26. 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.
Fri 7/1110:45 pmSFO - ISP
2 stops9h 50mSouthwest
Wed 7/169:55 amISP - SFO
1 stop10h 55mSouthwest
Deal found 3/26$432

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 March 26, 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

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Sat 5/10

8:00 am-9:28 pm

1 stop10h 28m

Islip Long Island

Tue 5/20

6:00 am-12:44 pm

1 stop9h 44m

$259

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Tue 4/8

8:18 pm-8:10 am

1 stop8h 52m

Islip Long Island

Thu 4/17

9:00 am-7:18 pm

1 stop13h 18m

$288

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 5/8

9:57 pm-10:12 am

1 stop9h 15m

Islip Long Island

Tue 5/20

6:48 pm-12:58 pm

1 stop21h 10m

$298

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Tue 4/8

9:50 pm-9:54 am

1 stop9h 04m

Islip Long Island

Wed 4/23

10:39 am-8:40 pm

1 stop13h 01m

$336

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Wed 4/9

11:49 pm-8:10 am

1 stop29h 21m

Islip Long Island

Sun 4/13

8:04 pm-10:43 pm

1 stop29h 39m

$358

San DiegoIslip

SAN - ISP

SANISP

San Diego

Wed 5/28

10:20 am-9:28 pm

1 stop8h 08m

Islip Long Island

Sun 6/8

6:00 am-11:24 am

1 stop8h 24m

$384

San DiegoIslip

SAN - ISP

SANISP

San Diego

Fri 4/25

6:35 am-8:20 pm

1 stop10h 45m

Islip Long Island

Sun 4/27

5:45 am-10:10 am

1 stop7h 25m

$419

SacramentoIslip

SMF - ISP

SMFISP

Sacramento Intl

Wed 4/30

5:35 am-8:20 pm

2 stops11h 45m

Islip Long Island

Sun 5/4

10:25 am-3:10 pm

1 stop7h 45m

$419

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 6/18

6:00 am-5:00 pm

1 stop8h 00m

Islip Long Island

Mon 6/30

5:45 pm-1:00 am

1 stop10h 15m

$427

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Thu 7/17

9:45 pm-9:25 am

1 stop8h 40m

Islip Long Island

Mon 7/21

10:00 am-5:10 pm

1 stop10h 10m

$427

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 49 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 March 26, 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 March 26, 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
8.1
Very good
4,273 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Crew

8.6

Food

7.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Crew

8.6

Food

7.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Breeze Airways
8.0
Very good
156 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Crew

8.6

Food

7.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
JetBlue
7.3
Good
2,922 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Crew

8.6

Food

7.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
6.0
Okay
3,272 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Crew

8.6

Food

7.1

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 $139 on Frontier. Other airlines that offer cheap prices include JetBlue from $140 and Southwest from $219 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 San Diego - 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$323Average$574FlexibilityNo cancel feeOn-time63%
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