What airlines fly to Islip, New York?

United Airlines, JetBlue and Delta are the top three most popular airlines that fly to Islip, New York from California according to our data. United Airlines is the first choice among our users, with 29% 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.

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 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 15m on average. If you fly from Sacramento (another popular airport in California) to New York John F Kennedy Intl Airport, then the average flight time is 5h 17m.

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 July 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.

$118 Cheap Flights from California to Islip in 2025

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Find the cheapest flights from California to New York

Round-trip

One-way

Last minute

Cheap round-trip flights

11:02 pm - 3:42 pmLAS-ISP

13h 40m1 stop

6:05 am - 9:36 amISP-LAS

30h 31m1 stop

$259Frontier

Find Deal

Tue, Aug 12 - Tue, Aug 19

10:15 pm - 11:41 amLAX-ISP

10h 26m1 stop

12:35 pm - 8:04 pmISP-LAX

10h 29m1 stop

$261JetBlue

Find Deal

Mon, Aug 18 - Wed, Aug 27

11:04 pm - 10:40 amLAS-ISP

8h 36m1 stop

5:05 pm - 9:10 amISP-LAS

19h 05m1 stop

$265Frontier

Find Deal

Tue, Sep 16 - Sat, Oct 4

1:57 pm - 11:47 pmLAX-ISP

30h 50m1 stop

7:33 pm - 8:08 amISP-LAX

15h 35m1 stop

$278Frontier

Find Deal

Wed, Aug 13 - Sat, Aug 23

11:00 pm - 7:52 pmLAS-ISP

17h 52m1 stop

6:05 am - 9:36 amISP-LAS

30h 31m1 stop

$278Frontier

Find Deal

Sun, Aug 10 - Tue, Aug 19

9:22 pm - 10:50 amLAX-ISP

10h 28m1 stop

11:35 am - 8:10 pmISP-LAX

11h 35m1 stop

$281JetBlue

Find Deal

Thu, Sep 11 - Sat, Sep 13

8:55 pm - 12:25 pmSJC-ISP

12h 30m1 stop

11:40 am - 6:05 pmISP-SJC

9h 25m1 stop

$338Southwest

Find Deal

Tue, Oct 7 - Wed, Oct 15

9:00 am - 10:05 pmSFO-ISP

10h 05m2 stops

11:40 am - 9:10 pmISP-SFO

12h 30m2 stops

$343Southwest

Find Deal

Wed, Oct 8 - Wed, Oct 15

12:50 pm - 8:07 pmSFO-ISP

28h 17m2 stops

7:36 pm - 12:02 pmISP-SFO

19h 26m3 stops

$649Breeze Airways

Find Deal

Sun, Sep 7 - Thu, Sep 11

12:50 pm - 7:41 pmSFO-ISP

27h 51m2 stops

8:47 pm - 12:05 pmISP-SFO

18h 18m2 stops

$683Breeze Airways

Find Deal

Tue, Sep 9 - Mon, Sep 15

Frontier flights from California to Islip, New York

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

Frontier

Aug 6

LAS11:00 pmLas Vegas Harry Reid Intl

21h 47m

1 stop

ISP11:47 pmIslip Long Island

Aug 9

ISP8:37 pmIslip Long Island

27h 45m

1 stop

LAS9:22 pmLas Vegas Harry Reid Intl

$258

Find similar

Frontier

Aug 12

LAS11:02 pmLas Vegas Harry Reid Intl

13h 40m

1 stop

ISP3:42 pmIslip Long Island

Aug 19

ISP6:05 amIslip Long Island

30h 31m

1 stop

LAS9:36 amLas Vegas Harry Reid Intl

$259

Find similar

Frontier

Sep 16

LAS11:04 pmLas Vegas Harry Reid Intl

8h 36m

1 stop

ISP10:40 amIslip Long Island

Oct 4

ISP5:05 pmIslip Long Island

19h 05m

1 stop

LAS9:10 amLas Vegas Harry Reid Intl

$265

Find similar

Southwest flights from California to Islip, New York

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

Southwest

Oct 7

SJC8:55 pmSan Jose

12h 30m

1 stop

ISP12:25 pmIslip Long Island

Oct 15

ISP11:40 amIslip Long Island

9h 25m

1 stop

SJC6:05 pmSan Jose

$338

Find similar

Southwest

Oct 8

SFO9:00 amSan Francisco

10h 05m

2 stops

ISP10:05 pmIslip Long Island

Oct 15

ISP11:40 amIslip Long Island

12h 30m

2 stops

SFO9:10 pmSan Francisco

$343

Find similar

Southwest

Oct 11

SFO6:20 pmSan Francisco

14h 50m

2 stops

ISP12:10 pmIslip Long Island

Oct 18

ISP11:55 amIslip Long Island

10h 50m

1 stop

SFO7:45 pmSan Francisco

$344

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 8/12

11:02 pm-3:42 pm

1 stop13h 40m

Islip Long Island

Tue 8/19

6:05 am-9:36 am

1 stop30h 31m

$259

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 8/18

10:15 pm-11:41 am

1 stop10h 26m

Islip Long Island

Wed 8/27

12:35 pm-8:04 pm

1 stop10h 29m

$261

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 9/16

11:04 pm-10:40 am

1 stop8h 36m

Islip Long Island

Sat 10/4

5:05 pm-9:10 am

1 stop19h 05m

$265

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Wed 8/13

1:57 pm-11:47 pm

1 stop30h 50m

Islip Long Island

Sat 8/23

7:33 pm-8:08 am

1 stop15h 35m

$278

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Sun 8/10

11:00 pm-7:52 pm

1 stop17h 52m

Islip Long Island

Tue 8/19

6:05 am-9:36 am

1 stop30h 31m

$278

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 9/11

9:22 pm-10:50 am

1 stop10h 28m

Islip Long Island

Sat 9/13

11:35 am-8:10 pm

1 stop11h 35m

$281

San JoseIslip

SJC - ISP

SJCISP

San Jose

Tue 10/7

8:55 pm-12:25 pm

1 stop12h 30m

Islip Long Island

Wed 10/15

11:40 am-6:05 pm

1 stop9h 25m

$338

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Wed 10/8

9:00 am-10:05 pm

2 stops10h 05m

Islip Long Island

Wed 10/15

11:40 am-9:10 pm

2 stops12h 30m

$343

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Sun 9/7

12:50 pm-8:07 pm

2 stops28h 17m

Islip Long Island

Thu 9/11

7:36 pm-12:02 pm

3 stops19h 26m

$649

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Tue 9/9

12:50 pm-7:41 pm

2 stops27h 51m

Islip Long Island

Mon 9/15

8:47 pm-12:05 pm

2 stops18h 18m

$683

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 18% 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

Best Price Found	$118
Fastest flight time	7h 05m
Direct flights	None
Airports in Islip, New York	1 airport

The best one-way flight to Islip, New York from California in the past 72 hours is $118. The best round-trip flight deal from California to Islip, New York found on momondo in the last 72 hours is $259.

The fastest flight from California to Islip, New York takes 7h 05m

There are no direct flights from California to Islip, New York. Popular non-direct routes for this connection are Las Vegas Harry Reid Intl Airport - Islip Long Island Airport, San Francisco Airport - Islip Long Island Airport and Los Angeles Airport - Islip Long Island Airport.

There is 1 airport near Islip, New York: Islip Long Island (ISP)

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 July 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 $323	Free Cancellation	Rating 8.0 4,246 reviews		Search Southwest flights

Montauk

Riverhead

Sag Harbor

Amagansett

Southampton

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.