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

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 Los Angeles (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 09m on average. If you fly from San Diego (another popular airport in California) to New York John F Kennedy Intl Airport, then the average flight time is 5h 13m.

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 30% 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.

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 October 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.

$65 Cheap Flights from California to Islip in 2025/26

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Cheap round-trip flights

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11:02 pm - 10:37 amLAS-ISP

8h 35m1 stop

10:02 am - 6:08 pmISP-LAS

11h 06m1 stop

$130Frontier

Find Deal

Tue, Nov 18 - Thu, Nov 20

11:02 pm - 10:37 amLAS-ISP

8h 35m1 stop

4:58 pm - 10:13 amISP-LAS

20h 15m1 stop

$176Frontier

Find Deal

Tue, Nov 11 - Wed, Nov 19

12:59 am - 10:37 amLAX-ISP

30h 38m2 stops

4:58 pm - 11:49 pmISP-LAX

33h 51m2 stops

$268Multiple Airlines

Find Deal

Wed, Nov 12 - Mon, Nov 17

10:45 pm - 11:05 amLAX-ISP

9h 20m1 stop

11:50 am - 6:55 pmISP-LAX

10h 05m1 stop

$323JetBlue

Find Deal

Wed, Dec 10 - Tue, Dec 16

10:10 pm - 9:55 amLAS-ISP

8h 45m1 stop

1:15 pm - 8:47 pmISP-LAS

10h 32m1 stop

$341JetBlue

Find Deal

Tue, Nov 18 - Wed, Nov 19

7:00 am - 9:55 pmONT-ISP

11h 55m2 stops

5:30 am - 2:20 pmISP-ONT

11h 50m2 stops

$379Southwest

Find Deal

Wed, Feb 18 - Sat, Feb 28

11:15 pm - 11:55 amLAX-ISP

9h 40m2 stops

6:00 am - 11:45 amISP-LAX

8h 45m1 stop

$408Southwest

Find Deal

Mon, Jan 19 - Fri, Jan 23

1:16 am - 12:38 amLAS-ISP

20h 22m2 stops

6:25 am - 11:48 pmISP-LAS

20h 23m1 stop

$408Multiple Airlines

Find Deal

Tue, Dec 16 - Tue, Dec 23

1:12 pm - 6:56 pmSAN-ISP

26h 44m1 stop

7:36 pm - 12:27 pmISP-SAN

19h 51m1 stop

$1,042Breeze Airways

Find Deal

Wed, Nov 26 - Sun, Nov 30

1:12 pm - 6:28 pmSAN-ISP

50h 16m2 stops

2:19 pm - 12:27 pmISP-SAN

25h 08m3 stops

$2,665Breeze Airways

Find Deal

Wed, Nov 26 - Sun, Nov 30

Frontier flights from California to Islip, New York

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

Frontier

Nov 18

LAS11:02 pmLas Vegas Harry Reid Intl

8h 35m

1 stop

ISP10:37 amIslip Long Island

Nov 20

ISP10:02 amIslip Long Island

11h 06m

1 stop

LAS6:08 pmLas Vegas Harry Reid Intl

$130

Find similar

Frontier

Nov 11

LAS11:02 pmLas Vegas Harry Reid Intl

8h 35m

1 stop

ISP10:37 amIslip Long Island

Nov 19

ISP4:58 pmIslip Long Island

20h 15m

1 stop

LAS10:13 amLas Vegas Harry Reid Intl

$176

Find similar

Frontier

Nov 11

LAS11:02 pmLas Vegas Harry Reid Intl

8h 35m

1 stop

ISP10:37 amIslip Long Island

Nov 14

ISP4:58 pmIslip Long Island

20h 09m

1 stop

LAS10:07 amLas Vegas Harry Reid Intl

$183

Find similar

Southwest flights from California to Islip, New York

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

Southwest

Feb 18

ONT7:00 amOntario

11h 55m

2 stops

ISP9:55 pmIslip Long Island

Feb 28

ISP5:30 amIslip Long Island

11h 50m

2 stops

ONT2:20 pmOntario

$379

Find similar

Southwest

Jan 19

LAX11:15 pmLos Angeles

9h 40m

2 stops

ISP11:55 amIslip Long Island

Jan 23

ISP6:00 amIslip Long Island

8h 45m

1 stop

LAX11:45 amLos Angeles

$408

Find similar

Southwest

Jan 19

LAX11:15 pmLos Angeles

9h 40m

2 stops

ISP11:55 amIslip Long Island

Jan 23

ISP6:00 amIslip Long Island

10h 50m

2 stops

LAX1:50 pmLos Angeles

$413

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

Tue 11/18

11:02 pm-10:37 am

1 stop8h 35m

Islip Long Island

Thu 11/20

10:02 am-6:08 pm

1 stop11h 06m

$130

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 11/11

11:02 pm-10:37 am

1 stop8h 35m

Islip Long Island

Wed 11/19

4:58 pm-10:13 am

1 stop20h 15m

$176

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 11/12

12:59 am-10:37 am

2 stops30h 38m

Islip Long Island

Mon 11/17

4:58 pm-11:49 pm

2 stops33h 51m

$268

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 12/10

10:45 pm-11:05 am

1 stop9h 20m

Islip Long Island

Tue 12/16

11:50 am-6:55 pm

1 stop10h 05m

$323

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 11/18

10:10 pm-9:55 am

1 stop8h 45m

Islip Long Island

Wed 11/19

1:15 pm-8:47 pm

1 stop10h 32m

$341

OntarioIslip

ONT - ISP

ONTISP

Ontario

Wed 2/18

7:00 am-9:55 pm

2 stops11h 55m

Islip Long Island

Sat 2/28

5:30 am-2:20 pm

2 stops11h 50m

$379

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 1/19

11:15 pm-11:55 am

2 stops9h 40m

Islip Long Island

Fri 1/23

6:00 am-11:45 am

1 stop8h 45m

$408

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 12/16

1:16 am-12:38 am

2 stops20h 22m

Islip Long Island

Tue 12/23

6:25 am-11:48 pm

1 stop20h 23m

$408

San DiegoIslip

SAN - ISP

SANISP

San Diego

Wed 11/26

1:12 pm-6:56 pm

1 stop26h 44m

Islip Long Island

Sun 11/30

7:36 pm-12:27 pm

1 stop19h 51m

$1,042

San DiegoIslip

SAN - ISP

SANISP

San Diego

Wed 11/26

1:12 pm-6:28 pm

2 stops50h 16m

Islip Long Island

Sun 11/30

2:19 pm-12:27 pm

3 stops25h 08m

$2,665

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 24% 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

Direct flights	None

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 October 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 8.0 4,243 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.

An easier way to manage your Islip, New York trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from California to New York from $65

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to New York departing on 11/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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Find the cheapest flights from California to New York

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Frontier flights from California to Islip, New York

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

Southwest flights from California to Islip, New York

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

momondo Fare Finder

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

See travel insights to New York from

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

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?

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

You could potentially save up to 24% on your flight if you consider stops on a California to Islip, New York flight.

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?

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

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

Direct flights

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

How many operators does momondo search 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?

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

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

Traveling to a place near New York?

Why use momondo?

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

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

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

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

An easier way to manage your Islip, New York trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing New York