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

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

What airlines fly to Islip, New York?

JetBlue, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Islip, New York from California according to our data. JetBlue is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 10 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Islip, New York?

The flight from California to Islip, New York depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from San Diego (a popular airport in California) to New York John F Kennedy Intl Airport (the most popular airport in Islip, New York), then the flight time is 5h 13m on average. If you fly from Los Angeles (another popular airport in California) to New York John F Kennedy Intl Airport, then the average flight time is 5h 18m.

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

Prices for flights from California to Islip Long Island Airport are updated daily.

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

As of December 2025, there is 1 operator available to choose from for flights from California to Islip Long Island Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from California to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$75 Cheap Flights from California to Islip in 2025/26

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 California to New York

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:03 pm - 2:39 pm

LAS

ISP

12h 36m1 stop

8:23 pm - 10:15 am

ISP

LAS

16h 52m1 stop

$183Frontier

Wed, Feb 18 - Sat, Feb 21

9:32 pm - 7:45 pm

LAS

ISP

19h 13m1 stop

8:00 am - 10:10 am

ISP

LAS

29h 10m1 stop

$202Frontier

Sat, Jan 10 - Sat, Jan 17

11:16 am - 11:10 am

LAS

ISP

20h 54m2 stops

8:00 am - 11:42 am

ISP

LAS

30h 42m1 stop

$281Multiple Airlines

Tue, Jan 6 - Tue, Jan 13

7:50 am - 9:55 pm

SJC

ISP

11h 05m2 stops

12:40 pm - 9:55 pm

ISP

SJC

12h 15m2 stops

$377Southwest

Tue, Jan 13 - Tue, Jan 27

5:05 am - 5:15 pm

LAX

ISP

9h 10m1 stop

3:45 pm - 9:10 pm

ISP

LAX

8h 25m1 stop

$467Southwest

Sun, Dec 28 - Wed, Feb 4

11:59 pm - 1:09 pm

LAX

ISP

10h 10m1 stop

8:24 pm - 10:38 pm

ISP

LAX

53h 14m2 stops

$522Multiple Airlines

Sun, Dec 28 - Sun, Jan 4

11:42 pm - 11:33 am

SFO

ISP

8h 51m1 stop

12:25 pm - 11:29 pm

ISP

SFO

14h 04m1 stop

$568JetBlue

Sat, Jan 10 - Tue, Jan 13

11:42 pm - 11:33 am

SFO

ISP

8h 51m1 stop

12:25 pm - 11:29 pm

ISP

SFO

14h 04m1 stop

$603JetBlue

Sat, Jan 10 - Wed, Jan 14

12:50 pm - 8:07 pm

SFO

ISP

28h 17m2 stops

10:38 am - 12:02 pm

ISP

SFO

28h 24m3 stops

$1,084Breeze Airways

Thu, Dec 25 - Sun, Jan 4

12:47 pm - 1:39 pm

SFO

ISP

21h 52m3 stops

2:19 pm - 11:54 am

ISP

SFO

24h 35m1 stop

$1,158Breeze Airways

Fri, Dec 26 - Tue, Dec 30

Frontier flights from California to Islip, New York

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

Frontier

Feb 18

LAS11:03 pmLas Vegas Harry Reid Intl

12h 36m

1 stop

ISP2:39 pmIslip Long Island

Feb 21

ISP8:23 pmIslip Long Island

16h 52m

1 stop

LAS10:15 amLas Vegas Harry Reid Intl

$183

Find similar

Frontier

Jan 10

LAS9:32 pmLas Vegas Harry Reid Intl

19h 13m

1 stop

ISP7:45 pmIslip Long Island

Jan 17

ISP8:00 amIslip Long Island

29h 10m

1 stop

LAS10:10 amLas Vegas Harry Reid Intl

$202

Find similar

Frontier

Mar 5

LAS11:03 pmLas Vegas Harry Reid Intl

10h 44m

1 stop

ISP12:47 pmIslip Long Island

Mar 8

ISP5:08 pmIslip Long Island

21h 22m

1 stop

LAS11:30 amLas Vegas Harry Reid Intl

$218

Find similar

JetBlue flights from California to Islip, New York

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

JetBlue

Apr 21

LAX10:45 pmLos Angeles

9h 10m

1 stop

ISP10:55 amIslip Long Island

Apr 28

ISP1:15 pmIslip Long Island

12h 45m

1 stop

LAX11:00 pmLos Angeles

$433

Find similar

JetBlue

Jan 13

LAS9:55 pmLas Vegas Harry Reid Intl

7h 57m

1 stop

ISP8:52 amIslip Long Island

Jan 27

ISP12:25 pmIslip Long Island

10h 48m

1 stop

LAS8:13 pmLas Vegas Harry Reid Intl

$434

Find similar

JetBlue

Jan 10

SFO11:42 pmSan Francisco

8h 51m

1 stop

ISP11:33 amIslip Long Island

Jan 13

ISP12:25 pmIslip Long Island

14h 04m

1 stop

SFO11:29 pmSan Francisco

$439

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Wed 2/18

11:03 pm-2:39 pm

1 stop12h 36m

Islip Long Island

Sat 2/21

8:23 pm-10:15 am

1 stop16h 52m

$183

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Sat 1/10

9:32 pm-7:45 pm

1 stop19h 13m

Islip Long Island

Sat 1/17

8:00 am-10:10 am

1 stop29h 10m

$202

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 1/6

11:16 am-11:10 am

2 stops20h 54m

Islip Long Island

Tue 1/13

8:00 am-11:42 am

1 stop30h 42m

$281

San JoseIslip

SJC - ISP

SJCISP

San Jose

Tue 1/13

7:50 am-9:55 pm

2 stops11h 05m

Islip Long Island

Tue 1/27

12:40 pm-9:55 pm

2 stops12h 15m

$377

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Sun 12/28

5:05 am-5:15 pm

1 stop9h 10m

Islip Long Island

Wed 2/4

3:45 pm-9:10 pm

1 stop8h 25m

$467

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Sun 12/28

11:59 pm-1:09 pm

1 stop10h 10m

Islip Long Island

Sun 1/4

8:24 pm-10:38 pm

2 stops53h 14m

$522

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Sat 1/10

11:42 pm-11:33 am

1 stop8h 51m

Islip Long Island

Tue 1/13

12:25 pm-11:29 pm

1 stop14h 04m

$568

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Sat 1/10

11:42 pm-11:33 am

1 stop8h 51m

Islip Long Island

Wed 1/14

12:25 pm-11:29 pm

1 stop14h 04m

$603

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 12/25

12:50 pm-8:07 pm

2 stops28h 17m

Islip Long Island

Sun 1/4

10:38 am-12:02 pm

3 stops28h 24m

$1,084

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Fri 12/26

12:47 pm-1:39 pm

3 stops21h 52m

Islip Long Island

Tue 12/30

2:19 pm-11:54 am

1 stop24h 35m

$1,158

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 California to Islip, New York

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

Other information

What is the cheapest day to depart on your flight to Islip, New York?

The cheapest day to depart from California to Islip, New York is on a Wednesday. Travelers who choose to depart for Islip, New York on a Wednesday will often find tickets for as low as $236. The most expensive day to fly to Islip, New York is Thursday, with ticket prices averaging around $671.

What is the cheapest time of day to depart on your flight to Islip, New York?

Flying to Islip, New York from California in the evening is the least expensive time of day to depart. momondo users have found prices as low as $382 when looking at flights departing in the evening. Flights to Islip, New York are more costly in the morning, with an average ticket price of $616. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

Cheap California to Islip, New York flight deals and tips

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

Fastest flight time	6h 55m
Direct flights	None

The fastest flight from California to Islip, New York takes 6h 55m

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

Search flight deals

When did momondo last update prices for flights from California to Islip Long Island Airport?
Prices for flights from California to Islip Long Island Airport are updated daily.
How many operators does momondo search for flights from California to Islip Long Island Airport?
As of December 2025, there is 1 operator available to choose from for flights from California to Islip Long Island Airport.
How old do you have to be to fly from California to Islip Long Island Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from California to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from California to Islip, New York

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

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $380	Free Cancellation	Rating 7.9 4,253 reviews		Search Southwest flights

Montauk

Riverhead

Sag Harbor

Southampton

Amagansett

Why use momondo?

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

Finding the right flight to Islip from California is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Islip quick and easy, saving you time and money.

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

Yes. All flights to Islip from California on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from California.

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

Yes momondo offers price alerts on flights to Islip from California. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.