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?

JetBlue, United Airlines and Delta are the top three most popular airlines that fly to Islip from California according to our data. JetBlue is the first choice among our users, with 29% of people opting to fly with this airline when traveling to Islip. Keep in mind that there are 10 different airlines that fly to Islip on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Islip?

The flight from California to Islip 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), then the flight time is 5h 12m 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 14m.

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 September 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.

$125 Cheap Flights from California to Islip in 2025/26

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Find the cheapest flights from California to New York

Round-trip

One-way

Last minute

Cheap round-trip flights

11:04 pm - 10:40 amLAS-ISP

8h 36m1 stop

5:05 pm - 9:10 amISP-LAS

19h 05m1 stop

$181Frontier

Find Deal

Tue, Sep 30 - Sat, Oct 4

2:27 pm - 10:37 amLAX-ISP

17h 10m1 stop

9:47 pm - 8:28 amISP-LAX

13h 41m1 stop

$187Frontier

Find Deal

Thu, Oct 16 - Sun, Oct 19

9:25 pm - 10:50 amLAX-ISP

10h 25m1 stop

1:57 pm - 11:02 pmISP-LAX

12h 05m1 stop

$263JetBlue

Find Deal

Tue, Oct 21 - Mon, Oct 27

2:21 pm - 10:40 amLAX-ISP

17h 19m1 stop

5:05 pm - 11:10 amISP-LAX

21h 05m2 stops

$273Multiple Airlines

Find Deal

Mon, Sep 29 - Fri, Oct 3

9:44 pm - 1:02 pmSFO-ISP

12h 18m1 stop

1:57 pm - 11:31 pmISP-SFO

12h 34m1 stop

$297JetBlue

Find Deal

Wed, Oct 29 - Tue, Nov 4

2:21 pm - 10:40 amLAX-ISP

17h 19m1 stop

8:47 pm - 11:58 amISP-LAX

18h 11m1 stop

$339Multiple Airlines

Find Deal

Mon, Sep 29 - Fri, Oct 3

7:00 am - 9:55 pmONT-ISP

11h 55m2 stops

12:40 pm - 8:45 pmISP-ONT

11h 05m2 stops

$369Southwest

Find Deal

Thu, Jan 22 - Mon, Jan 26

11:40 pm - 12:15 pmLAS-ISP

9h 35m2 stops

12:35 pm - 5:40 pmISP-LAS

8h 05m1 stop

$374Southwest

Find Deal

Mon, Nov 17 - Thu, Nov 27

12:50 pm - 8:07 pmSFO-ISP

28h 17m2 stops

8:47 pm - 12:05 pmISP-SFO

18h 18m2 stops

$653Breeze Airways

Find Deal

Thu, Oct 30 - Mon, Nov 3

12:39 pm - 1:39 pmSFO-ISP

22h 00m1 stop

8:47 pm - 12:05 pmISP-SFO

18h 18m2 stops

$657Breeze Airways

Find Deal

Sat, Dec 6 - Mon, Dec 8

JetBlue flights from California to Islip

Our best JetBlue deals on California to Islip flight tickets

JetBlue

Oct 21

LAX9:25 pmLos Angeles

10h 25m

1 stop

ISP10:50 amIslip Long Island

Oct 27

ISP1:57 pmIslip Long Island

12h 05m

1 stop

LAX11:02 pmLos Angeles

$263

Find similar

JetBlue

Oct 29

SFO9:44 pmSan Francisco

12h 18m

1 stop

ISP1:02 pmIslip Long Island

Nov 4

ISP1:57 pmIslip Long Island

12h 34m

1 stop

SFO11:31 pmSan Francisco

$297

Find similar

JetBlue

Nov 7

LAX10:35 pmLos Angeles

11h 27m

1 stop

ISP1:02 pmIslip Long Island

Nov 11

ISP4:25 pmIslip Long Island

9h 37m

1 stop

LAX11:02 pmLos Angeles

$341

Find similar

Southwest flights from California to Islip

Our best Southwest deals on California to Islip flight tickets

Southwest

Jan 22

ONT7:00 amOntario

11h 55m

2 stops

ISP9:55 pmIslip Long Island

Jan 26

ISP12:40 pmIslip Long Island

11h 05m

2 stops

ONT8:45 pmOntario

$369

Find similar

Southwest

Nov 17

LAS11:40 pmLas Vegas Harry Reid Intl

9h 35m

2 stops

ISP12:15 pmIslip Long Island

Nov 27

ISP12:35 pmIslip Long Island

8h 05m

1 stop

LAS5:40 pmLas Vegas Harry Reid Intl

$374

Find similar

Southwest

Oct 14

SFO9:05 pmSan Francisco

12h 20m

1 stop

ISP12:25 pmIslip Long Island

Oct 21

ISP11:40 amIslip Long Island

11h 45m

2 stops

SFO8:25 pmSan Francisco

$403

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Tue 9/30

11:04 pm-10:40 am

1 stop8h 36m

Islip Long Island

Sat 10/4

5:05 pm-9:10 am

1 stop19h 05m

$181

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Thu 10/16

2:27 pm-10:37 am

1 stop17h 10m

Islip Long Island

Sun 10/19

9:47 pm-8:28 am

1 stop13h 41m

$187

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Tue 10/21

9:25 pm-10:50 am

1 stop10h 25m

Islip Long Island

Mon 10/27

1:57 pm-11:02 pm

1 stop12h 05m

$263

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 9/29

2:21 pm-10:40 am

1 stop17h 19m

Islip Long Island

Fri 10/3

5:05 pm-11:10 am

2 stops21h 05m

$273

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Wed 10/29

9:44 pm-1:02 pm

1 stop12h 18m

Islip Long Island

Tue 11/4

1:57 pm-11:31 pm

1 stop12h 34m

$297

Los AngelesIslip

LAX - ISP

LAXISP

Los Angeles

Mon 9/29

2:21 pm-10:40 am

1 stop17h 19m

Islip Long Island

Fri 10/3

8:47 pm-11:58 am

1 stop18h 11m

$339

OntarioIslip

ONT - ISP

ONTISP

Ontario

Thu 1/22

7:00 am-9:55 pm

2 stops11h 55m

Islip Long Island

Mon 1/26

12:40 pm-8:45 pm

2 stops11h 05m

$369

Las VegasIslip

LAS - ISP

LASISP

Las Vegas Harry Reid Intl

Mon 11/17

11:40 pm-12:15 pm

2 stops9h 35m

Islip Long Island

Thu 11/27

12:35 pm-5:40 pm

1 stop8h 05m

$374

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 10/30

12:50 pm-8:07 pm

2 stops28h 17m

Islip Long Island

Mon 11/3

8:47 pm-12:05 pm

2 stops18h 18m

$653

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Sat 12/6

12:39 pm-1:39 pm

1 stop22h 00m

Islip Long Island

Mon 12/8

8:47 pm-12:05 pm

2 stops18h 18m

$657

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from California to Islip

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?

On average, the least expensive day to fly to Islip from California is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $236. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from California to Islip on a Thursday will generally be more expensive and average around $671. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Flying to Islip 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 in the morning are often more expensive with an average ticket price of $616.

Cheap California to Islip flight deals and tips

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

Direct flights	None

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

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 September 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

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

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $318	Free Cancellation	Rating 8.0 4,242 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.