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 41% of people opting to fly with this airline when traveling to California. Keep in mind that there are 10 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 May 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.

$111 Cheap Flights from Islip, New York to California in 2026

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

7:50 pm - 12:23 am

ISP

LAS

31h 33m

1 stop

9:15 am - 8:57 pm

LAS

ISP

8h 42m

1 stop

$230Frontier

Wed, Jun 10 - Fri, Jun 12

10:48 am - 11:16 am

ISP

LAS

27h 28m

1 stop

9:15 am - 9:58 am

LAS

ISP

21h 43m

1 stop

$250Frontier

Sun, Jul 26 - Thu, Jul 30

4:13 pm - 6:48 pm

ISP

LAX

29h 35m

1 stop

9:56 pm - 3:03 pm

LAX

ISP

14h 07m

1 stop

$250Frontier

Mon, Oct 19 - Fri, Oct 23

4:13 pm - 6:48 pm

ISP

LAX

29h 35m

1 stop

9:56 pm - 9:33 am

LAX

ISP

8h 37m

1 stop

$262Frontier

Thu, Sep 24 - Mon, Sep 28

9:52 pm - 11:39 pm

ISP

LAS

28h 47m

1 stop

11:39 pm - 8:57 pm

LAS

ISP

18h 18m

1 stop

$287Multiple Airlines

Fri, Jun 12 - Fri, Jun 19

12:55 pm - 7:35 pm

ISP

SAN

9h 40m

1 stop

12:15 pm - 10:15 pm

SAN

ISP

7h 00m

1 stop

$395Southwest

Wed, Sep 30 - Tue, Oct 6

6:05 am - 11:30 am

ISP

SAN

8h 25m

1 stop

6:35 am - 7:35 pm

SAN

ISP

10h 00m

2 stops

$400Southwest

Wed, Sep 30 - Tue, Oct 6

2:33 pm - 12:43 pm

ISP

SNA

25h 10m

2 stops

1:10 pm - 10:05 am

SNA

ISP

17h 55m

1 stop

$509Multiple Airlines

Sat, May 30 - Wed, Jun 3

6:46 pm - 12:11 pm

ISP

SNA

20h 25m

3 stops

1:04 pm - 4:47 pm

SNA

ISP

24h 43m

1 stop

$1,063Breeze Airways

Thu, Jun 18 - Mon, Jun 22

7:49 pm - 12:25 pm

ISP

SNA

43h 36m

3 stops

12:41 pm - 6:38 pm

SNA

ISP

50h 57m

2 stops

$1,064Breeze Airways

Thu, Jun 4 - Sun, Jun 7

JetBlue flights from Islip, New York to California

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

JetBlue

Nov 11

ISP6:00 amIslip Long Island

9h 33m

1 stop

LAX12:33 pmLos Angeles Los Angeles

Nov 17

LAX9:57 amLos Angeles Los Angeles

8h 40m

1 stop

ISP9:37 pmIslip Long Island

$447

JetBlue

May 29

ISP12:25 pmIslip Long Island

13h 34m

1 stop

LAX10:59 pmLos Angeles Los Angeles

Jun 9

LAX11:36 pmLos Angeles Los Angeles

8h 59m

1 stop

ISP11:35 amIslip Long Island

$508

JetBlue

Aug 25

ISP5:00 pmIslip Long Island

9h 57m

1 stop

LAX11:57 pmLos Angeles Los Angeles

Aug 26

LAX8:50 amLos Angeles Los Angeles

9h 44m

1 stop

ISP9:34 pmIslip Long Island

$527

Frontier flights from Islip, New York to California

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

Frontier

Jun 10

ISP7:50 pmIslip Long Island

31h 33m

1 stop

LAS12:23 amLas Vegas Harry Reid Intl

Jun 12

LAS9:15 amLas Vegas Harry Reid Intl

8h 42m

1 stop

ISP8:57 pmIslip Long Island

$230

Frontier

Oct 19

ISP4:13 pmIslip Long Island

29h 35m

1 stop

LAX6:48 pmLos Angeles Los Angeles

Oct 23

LAX9:56 pmLos Angeles Los Angeles

14h 07m

1 stop

ISP3:03 pmIslip Long Island

$250

Frontier

Sep 24

ISP4:13 pmIslip Long Island

29h 35m

1 stop

LAX6:48 pmLos Angeles Los Angeles

Sep 28

LAX9:56 pmLos Angeles Los Angeles

8h 37m

1 stop

ISP9:33 amIslip Long Island

$262

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Wed 6/10

7:50 pm-12:23 am

1 stop31h 33m

Las Vegas Harry Reid Intl

Fri 6/12

9:15 am-8:57 pm

1 stop8h 42m

$230

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Sun 7/26

10:48 am-11:16 am

1 stop27h 28m

Las Vegas Harry Reid Intl

Thu 7/30

9:15 am-9:58 am

1 stop21h 43m

$250

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Mon 10/19

4:13 pm-6:48 pm

1 stop29h 35m

Los Angeles Los Angeles

Fri 10/23

9:56 pm-3:03 pm

1 stop14h 07m

$250

IslipLos Angeles

ISP - LAX

ISPLAX

Islip Long Island

Thu 9/24

4:13 pm-6:48 pm

1 stop29h 35m

Los Angeles Los Angeles

Mon 9/28

9:56 pm-9:33 am

1 stop8h 37m

$262

IslipLas Vegas

ISP - LAS

ISPLAS

Islip Long Island

Fri 6/12

9:52 pm-11:39 pm

1 stop28h 47m

Las Vegas Harry Reid Intl

Fri 6/19

11:39 pm-8:57 pm

1 stop18h 18m

$287

Quickest round-trip

IslipSan Diego

ISP - SAN

ISPSAN

Islip Long Island

Wed 9/30

12:55 pm-7:35 pm

1 stop9h 40m

San Diego

Tue 10/6

12:15 pm-10:15 pm

1 stop7h 00m

$395

IslipSan Diego

ISP - SAN

ISPSAN

Islip Long Island

Wed 9/30

6:05 am-11:30 am

1 stop8h 25m

San Diego

Tue 10/6

6:35 am-7:35 pm

2 stops10h 00m

$400

IslipSanta Ana

ISP - SNA

ISPSNA

Islip Long Island

Sat 5/30

2:33 pm-12:43 pm

2 stops25h 10m

Santa Ana J. Wayne/Orange Cnty

Wed 6/3

1:10 pm-10:05 am

1 stop17h 55m

$509

IslipSanta Ana

ISP - SNA

ISPSNA

Islip Long Island

Thu 6/18

6:46 pm-12:11 pm

3 stops20h 25m

Santa Ana J. Wayne/Orange Cnty

Mon 6/22

1:04 pm-4:47 pm

1 stop24h 43m

$1,063

IslipSanta Ana

ISP - SNA

ISPSNA

Islip Long Island

Thu 6/4

7:49 pm-12:25 pm

3 stops43h 36m

Santa Ana J. Wayne/Orange Cnty

Sun 6/7

12:41 pm-6:38 pm

2 stops50h 57m

$1,064

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 November is another great option to travel to California, with average flight prices from Islip, New York averaging around $0.

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

You could potentially save up to 12% 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 40m
Direct flights	None

The fastest flight from Islip, New York to California takes 7h 40m

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 May 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 $339	Free Cancellation	Rating 8.0 4,295 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.