What is the cheapest airline that flies from Islip Long Island to California?

Frontier, Southwest, and JetBlue are the most popular carriers operating from Islip Long Island to California

What airlines fly to California?

United Airlines, JetBlue and Delta are the top three most popular airlines that fly to California from Islip, New York according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to California. Keep in mind that there are 9 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Islip Long Island Airport to California?

Prices for flights from Islip Long Island Airport to California are refreshed on a daily basis.

How many operators does momondo search for flights from Islip Long Island Airport to California?

As of August 2026, there are 2 operators available to choose from for flights from Islip Long Island Airport to California.

How old do you have to be to fly from Islip Long Island Airport to California?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to California.

What documentation or ID do you need to fly to California?

The travel and health documents required for your trip to California can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at California. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$114 Cheap Flights from Islip, New York to California in 2026

Find the cheapest flights from Islip, New York to California

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:09 pm - 6:18 pmISP Islip Long Island-LAX Los Angeles

26h 09m1 stop Orlando

9:40 pm - 4:58 pmLAX Los Angeles-ISP Islip Long Island

16h 18m1 stop Orlando

$228Frontier

Thu, Sep 3 - Thu, Sep 10

10:57 am - 9:44 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

13h 47m1 stop Orlando

11:59 am - 6:14 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

27h 15m1 stop Orlando

$250Frontier

Tue, Sep 1 - Thu, Sep 3

10:57 am - 9:44 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

13h 47m1 stop Orlando

9:41 pm - 9:53 amLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 12m1 stop Orlando

$250Frontier

Sat, Aug 29 - Wed, Sep 2

3:43 pm - 9:26 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

20h 43m1 stop Orlando

10:15 pm - 2:33 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

13h 18m1 stop Orlando

$260Frontier

Mon, Nov 2 - Tue, Nov 3

10:55 am - 4:15 pmISP Islip Long Island-SAN San Diego

8h 20m1 stop Baltimore/Washington

6:45 am - 5:00 pmSAN San Diego-ISP Islip Long Island

7h 15m1 stop Baltimore/Washington

$288Southwest

Wed, Sep 30 - Mon, Oct 5

6:05 am - 1:05 pmISP Islip Long Island-LAX Los Angeles

10h 00m2 stops Baltimore/Washington Phoenix Sky Harbor Intl

10:35 pm - 10:15 amLAX Los Angeles-ISP Islip Long Island

8h 40m1 stop Baltimore/Washington

$294Southwest

Wed, Sep 9 - Mon, Sep 14

10:55 am - 4:15 pmISP Islip Long Island-SAN San Diego

8h 20m1 stop Baltimore/Washington

10:40 pm - 12:10 pmSAN San Diego-ISP Islip Long Island

10h 30m2 stops Nashville Intl Baltimore/Washington

$294Southwest

Wed, Sep 30 - Mon, Oct 5

4:58 pm - 10:49 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

8h 51m1 stop Fort Lauderdale

11:30 am - 11:22 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

8h 52m1 stop Fort Lauderdale

$352JetBlue

Tue, Sep 8 - Sat, Sep 12

4:58 pm - 10:49 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

8h 51m1 stop Fort Lauderdale

11:30 am - 11:22 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

8h 52m1 stop Fort Lauderdale

$355JetBlue

Tue, Sep 1 - Thu, Sep 10

4:58 pm - 10:49 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

8h 51m1 stop Fort Lauderdale

7:00 am - 7:33 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 33m1 stop Fort Lauderdale

$355JetBlue

Tue, Sep 1 - Tue, Sep 8

Cheap last minute flights

Enter your travel dates to find the best prices.

7:46 pm - 12:19 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

31h 33m1 stop Tampa

9:41 pm - 9:53 amLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 12m1 stop Orlando

$419Frontier

Wed, Aug 12 - Mon, Aug 24

7:46 pm - 12:19 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

31h 33m1 stop Tampa

9:42 pm - 9:53 amLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 11m1 stop Orlando

$480Frontier

Sat, Aug 15 - Mon, Aug 17

8:43 pm - 11:53 amISP Islip Long Island-LAX Los Angeles

18h 10m1 stop Charleston

11:20 pm - 9:53 amLAX Los Angeles-ISP Islip Long Island

31h 33m1 stop Orlando

$614Multiple Airlines

Fri, Aug 14 - Tue, Aug 18

7:49 pm - 10:42 amISP Islip Long Island-LAS Las Vegas Harry Reid Intl

17h 53m1 stop Norfolk

9:41 pm - 9:53 amLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 12m1 stop Orlando

$625Multiple Airlines

Sun, Aug 16 - Wed, Aug 19

4:58 pm - 11:59 pmISP Islip Long Island-LAX Los Angeles

10h 01m1 stop Fort Lauderdale

8:50 am - 9:49 pmLAX Los Angeles-ISP Islip Long Island

9h 59m1 stop Fort Lauderdale

$786JetBlue

Thu, Aug 13 - Tue, Sep 1

4:58 pm - 11:59 pmISP Islip Long Island-LAX Los Angeles

10h 01m1 stop Fort Lauderdale

8:50 am - 9:44 pmLAX Los Angeles-ISP Islip Long Island

9h 54m1 stop Fort Lauderdale

$786JetBlue

Thu, Aug 13 - Mon, Aug 31

6:00 am - 1:20 pmISP Islip Long Island-LAX Los Angeles

10h 20m1 stop Fort Lauderdale

8:50 am - 10:04 pmLAX Los Angeles-ISP Islip Long Island

10h 14m1 stop Fort Lauderdale

$824JetBlue

Sun, Aug 16 - Sun, Aug 23

6:10 am - 1:00 pmISP Islip Long Island-SJC San Jose

9h 50m1 stop Baltimore/Washington

10:30 pm - 9:40 amSJC San Jose-ISP Islip Long Island

8h 10m1 stop Baltimore/Washington

$931Southwest

Mon, Aug 17 - Thu, Aug 20

10:20 am - 6:20 pmISP Islip Long Island-LAS Las Vegas Harry Reid Intl

11h 00m2 stops Baltimore/Washington Milwaukee-Mitchell

6:45 am - 6:45 pmLAS Las Vegas Harry Reid Intl-ISP Islip Long Island

9h 00m2 stops Dallas Love Field Baltimore/Washington

$952Southwest

Thu, Aug 13 - Sun, Aug 23

1:15 pm - 9:20 pmISP Islip Long Island-LAX Los Angeles

11h 05m2 stops Palm Beach Intl Orlando

8:25 am - 9:05 pmLAX Los Angeles-ISP Islip Long Island

9h 40m2 stops Phoenix Sky Harbor Intl Baltimore/Washington

$987Southwest

Fri, Aug 14 - Tue, Aug 18

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Southwest flights from Islip, New York to California

Our best Southwest deals on Islip, New York to California flight tickets

Southwest

Sep 30

ISP10:55 amIslip Long Island

8h 20m

1 stop

SAN4:15 pmSan Diego

Oct 5

SAN6:45 amSan Diego

7h 15m

1 stop

ISP5:00 pmIslip Long Island

$288

Southwest

Sep 9

ISP6:05 amIslip Long Island

10h 00m

2 stops

LAX1:05 pmLos Angeles

Sep 14

LAX10:35 pmLos Angeles

8h 40m

1 stop

ISP10:15 amIslip Long Island

$294

Southwest

Sep 9

ISP6:05 amIslip Long Island

10h 00m

2 stops

LAX1:05 pmLos Angeles

Sep 14

LAX11:55 pmLos Angeles

9h 15m

2 stops

ISP12:10 pmIslip Long Island

$299

Frontier flights from Islip, New York to California

Our best Frontier deals on Islip, New York to California flight tickets

Frontier

Sep 3

ISP7:09 pmIslip Long Island

26h 09m

1 stop

LAX6:18 pmLos Angeles

Sep 10

LAX9:40 pmLos Angeles

16h 18m

1 stop

ISP4:58 pmIslip Long Island

$228

Frontier

Aug 29

ISP10:57 amIslip Long Island

13h 47m

1 stop

LAS9:44 pmLas Vegas Harry Reid Intl

Sep 2

LAS9:41 pmLas Vegas Harry Reid Intl

9h 12m

1 stop

ISP9:53 amIslip Long Island

$250

Frontier

Nov 2

ISP3:43 pmIslip Long Island

20h 43m

1 stop

LAS9:26 amLas Vegas Harry Reid Intl

Nov 3

LAS10:15 pmLas Vegas Harry Reid Intl

13h 18m

1 stop

ISP2:33 pmIslip Long Island

$260

momondo Fare Finder

Use the filters below to find and compare flights from Islip, New York to California that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipLos Angeles

ISP Islip Long Island - LAX Los Angeles

ISPLAX

Islip Long Island

Thu 9/3

7:09 pm-6:18 pm

1 stop26h 09m

Los Angeles

Thu 9/10

9:40 pm-4:58 pm

1 stop16h 18m

$228

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Tue 9/1

10:57 am-9:44 pm

1 stop13h 47m

Las Vegas Harry Reid Intl

Thu 9/3

11:59 am-6:14 pm

1 stop27h 15m

$250

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Sat 8/29

10:57 am-9:44 pm

1 stop13h 47m

Las Vegas Harry Reid Intl

Wed 9/2

9:41 pm-9:53 am

1 stop9h 12m

$250

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Mon 11/2

3:43 pm-9:26 am

1 stop20h 43m

Las Vegas Harry Reid Intl

Tue 11/3

10:15 pm-2:33 pm

1 stop13h 18m

$260

Quickest round-trip

IslipSan Diego

ISP Islip Long Island - SAN San Diego

ISPSAN

Islip Long Island

Wed 9/30

10:55 am-4:15 pm

1 stop8h 20m

San Diego

Mon 10/5

6:45 am-5:00 pm

1 stop7h 15m

$288

IslipLos Angeles

ISP Islip Long Island - LAX Los Angeles

ISPLAX

Islip Long Island

Wed 9/9

6:05 am-1:05 pm

2 stops10h 00m

Los Angeles

Mon 9/14

10:35 pm-10:15 am

1 stop8h 40m

$294

IslipSan Diego

ISP Islip Long Island - SAN San Diego

ISPSAN

Islip Long Island

Wed 9/30

10:55 am-4:15 pm

1 stop8h 20m

San Diego

Mon 10/5

10:40 pm-12:10 pm

2 stops10h 30m

$294

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Tue 9/8

4:58 pm-10:49 pm

1 stop8h 51m

Las Vegas Harry Reid Intl

Sat 9/12

11:30 am-11:22 pm

1 stop8h 52m

$352

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Tue 9/1

4:58 pm-10:49 pm

1 stop8h 51m

Las Vegas Harry Reid Intl

Thu 9/10

11:30 am-11:22 pm

1 stop8h 52m

$355

IslipLas Vegas

ISP Islip Long Island - LAS Las Vegas Harry Reid Intl

ISPLAS

Islip Long Island

Tue 9/1

4:58 pm-10:49 pm

1 stop8h 51m

Las Vegas Harry Reid Intl

Tue 9/8

7:00 am-7:33 pm

1 stop9h 33m

$355

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Islip, New York to California

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to California?

The month of January is another great option to travel to California, with average flight prices from Islip, New York averaging around $376.

Can stopping save me money on Islip, New York to California flights?

You could potentially save up to 21% on your flight if you consider stops on a Islip, New York to California flight.

Cheap Islip, New York to California flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to California

Fastest flight time	7h 15m
Direct flights	None

The fastest flight from Islip, New York to California takes 7h 15m

There are no direct flights from Islip, New York to California. There are no popular flight routes from Islip, New York to California.

Search flight deals

Frequently asked questions about flying from Islip, New York to California

When did momondo last update prices for flights from Islip Long Island Airport to California?
Prices for flights from Islip Long Island Airport to California are refreshed on a daily basis.
How many operators does momondo search for flights from Islip Long Island Airport to California?
As of August 2026, there are 2 operators available to choose from for flights from Islip Long Island Airport to California.
How old do you have to be to fly from Islip Long Island Airport to California?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Islip Long Island Airport to California.
What documentation or ID do you need to fly to California?
The travel and health documents required for your trip to California can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at California. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Islip, New York to California

Compare and see reviews for airlines that fly from Islip, New York to California with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $310	Free Cancellation	Rating 8.0 4,220 reviews		Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Islip to California?

It is quick and easy to find Islip to California flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to California that suits you.

Can I find flights from Islip to California with flexible booking policies on momondo?

All flight searches from Islip to California on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Islip to California?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Islip to California.

I’m not ready to book a flight from Islip to California right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Islip to California flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.