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Cheap flights from New York LaGuardia Airport to New York from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New York LaGuardia Airport to New York departing on 8/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from New York LaGuardia Airport to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:29 pm - 9:53 am
LGA
-
ISP
13h 24m
1 stop
Frontier Logo
10:57 am - 8:59 pm
ISP
-
LGA
10h 02m
2 stops
$404Frontier
Tue, Jul 28 - Thu, Aug 27
JetBlue Logo
12:00 pm - 9:49 pm
LGA
-
ISP
9h 49m
1 stop
JetBlue Logo
6:00 am - 1:32 pm
ISP
-
LGA
7h 32m
1 stop
$413JetBlue
Tue, Sep 1 - Wed, Sep 2
JetBlue Logo
12:00 pm - 7:33 pm
LGA
-
ISP
7h 33m
1 stop
JetBlue Logo
6:00 am - 2:45 pm
ISP
-
LGA
8h 45m
1 stop
$423JetBlue
Tue, Jul 28 - Wed, Aug 26
JetBlue Logo
6:00 am - 7:33 pm
LGA
-
ISP
13h 33m
1 stop
JetBlue Logo
6:00 am - 2:45 pm
ISP
-
LGA
8h 45m
1 stop
$438JetBlue
Tue, Aug 25 - Wed, Aug 26
JetBlue Logo
6:00 am - 7:33 pm
LGA
-
ISP
13h 33m
1 stop
JetBlue Logo
6:00 am - 1:32 pm
ISP
-
LGA
7h 32m
1 stop
$448JetBlue
Tue, Aug 4 - Tue, Aug 11
JetBlue Logo
12:00 pm - 9:44 pm
LGA
-
ISP
9h 44m
1 stop
JetBlue Logo
6:00 am - 1:32 pm
ISP
-
LGA
7h 32m
1 stop
$488JetBlue
Thu, Jul 30 - Wed, Aug 26
JetBlue Logo
12:00 pm - 9:44 pm
LGA
-
ISP
9h 44m
1 stop
JetBlue Logo
6:00 am - 1:32 pm
ISP
-
LGA
7h 32m
1 stop
$498JetBlue
Tue, Jul 28 - Thu, Aug 27
Frontier Logo
8:29 pm - 9:53 am
LGA
-
ISP
13h 24m
1 stop
Frontier Logo
10:57 am - 11:14 pm
ISP
-
LGA
12h 17m
2 stops
$506Frontier
Fri, Aug 28 - Sun, Aug 30
JetBlue Logo
12:00 pm - 7:33 pm
LGA
-
ISP
7h 33m
1 stop
JetBlue Logo
6:00 am - 1:32 pm
ISP
-
LGA
7h 32m
1 stop
$538JetBlue
Tue, Jul 28 - Sat, Aug 29
JetBlue Logo
12:00 pm - 7:33 pm
LGA
-
ISP
7h 33m
1 stop
JetBlue Logo
6:00 am - 1:32 pm
ISP
-
LGA
7h 32m
1 stop
$573JetBlue
Tue, Jul 28 - Fri, Aug 28

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JetBlue flights from New York LaGuardia Airport to Islip, New York

Our best JetBlue deals on New York LaGuardia Airport to Islip, New York flight tickets
JetBlue
Sep 1
LGA12:00 pmNew York LaGuardia
9h 49m
1 stop
ISP9:49 pmIslip Long Island
Sep 2
ISP6:00 amIslip Long Island
7h 32m
1 stop
LGA1:32 pmNew York LaGuardia
$413
JetBlue
Jul 28
LGA12:00 pmNew York LaGuardia
7h 33m
1 stop
ISP7:33 pmIslip Long Island
Aug 26
ISP6:00 amIslip Long Island
8h 45m
1 stop
LGA2:45 pmNew York LaGuardia
$423
JetBlue
Aug 25
LGA6:00 amNew York LaGuardia
13h 33m
1 stop
ISP7:33 pmIslip Long Island
Aug 26
ISP6:00 amIslip Long Island
8h 45m
1 stop
LGA2:45 pmNew York LaGuardia
$438

Frontier flights from New York LaGuardia Airport to Islip, New York

Our best Frontier deals on New York LaGuardia Airport to Islip, New York flight tickets
Frontier
Jul 28
LGA8:29 pmNew York LaGuardia
13h 24m
1 stop
ISP9:53 amIslip Long Island
Aug 27
ISP10:57 amIslip Long Island
10h 02m
2 stops
LGA8:59 pmNew York LaGuardia
$404
Frontier
Aug 28
LGA8:29 pmNew York LaGuardia
13h 24m
1 stop
ISP9:53 amIslip Long Island
Aug 30
ISP10:57 amIslip Long Island
12h 17m
2 stops
LGA11:14 pmNew York LaGuardia
$506

momondo Fare Finder

 
Customize your flight search to find flights from New York LaGuardia Airport to Islip, New York that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 8, 2026.
Use the filters below to find and compare flights from New York LaGuardia Airport to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Tue 7/28

8:29 pm-9:53 am

1 stop13h 24m

Islip Long Island

Thu 8/27

10:57 am-8:59 pm

2 stops10h 02m

$404

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Tue 9/1

12:00 pm-9:49 pm

1 stop9h 49m

Islip Long Island

Wed 9/2

6:00 am-1:32 pm

1 stop7h 32m

$413

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Tue 7/28

12:00 pm-7:33 pm

1 stop7h 33m

Islip Long Island

Wed 8/26

6:00 am-2:45 pm

1 stop8h 45m

$423

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Tue 8/25

6:00 am-7:33 pm

1 stop13h 33m

Islip Long Island

Wed 8/26

6:00 am-2:45 pm

1 stop8h 45m

$438

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Tue 8/4

6:00 am-7:33 pm

1 stop13h 33m

Islip Long Island

Tue 8/11

6:00 am-1:32 pm

1 stop7h 32m

$448

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Thu 7/30

12:00 pm-9:44 pm

1 stop9h 44m

Islip Long Island

Wed 8/26

6:00 am-1:32 pm

1 stop7h 32m

$488

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Tue 7/28

12:00 pm-9:44 pm

1 stop9h 44m

Islip Long Island

Thu 8/27

6:00 am-1:32 pm

1 stop7h 32m

$498

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Fri 8/28

8:29 pm-9:53 am

1 stop13h 24m

Islip Long Island

Sun 8/30

10:57 am-11:14 pm

2 stops12h 17m

$506
Quickest round-trip

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Tue 7/28

12:00 pm-7:33 pm

1 stop7h 33m

Islip Long Island

Sat 8/29

6:00 am-1:32 pm

1 stop7h 32m

$538

New YorkIslip

LGA - ISP

LGAISP

New York LaGuardia

Tue 7/28

12:00 pm-7:33 pm

1 stop7h 33m

Islip Long Island

Fri 8/28

6:00 am-1:32 pm

1 stop7h 32m

$573

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from New York LaGuardia Airport 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 airline that flies from New York LaGuardia to Islip Long Island?

Frontier and JetBlue are the most popular carriers operating from New York LaGuardia to Islip Long Island

When to book flights from New York LaGuardia Airport to Islip, New York

Are you open to changing your travel dates? Check out the ideal times to fly from New York LaGuardia Airport to Islip, New York according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap New York LaGuardia Airport to Islip, New York (LGA to ISP) flight deals and tips

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

Fastest flight time

9h 38m

Direct flights

None
The fastest flight from New York LaGuardia Airport to Islip, New York takes 9h 38m
There are no direct flights from New York LaGuardia Airport to Islip, New York. There are no popular flight routes from New York LaGuardia Airport to Islip, New York.
Search flight deals

Frequently asked questions about flying from New York LaGuardia Airport to Islip, New York

  • How far is New York LaGuardia to Islip Long Island by plane?

    There are 34.8 mi between New York LaGuardia and Islip Long Island. By plane, this route typically takes 9h 38m.

  • When did momondo last update prices for flights from New York LaGuardia Airport to Islip Long Island Airport?

    Prices for flights from New York LaGuardia Airport to Islip Long Island Airport were last updated today.

  • How old do you have to be to fly from New York LaGuardia Airport to Islip Long Island Airport?

    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 New York LaGuardia Airport to Islip Long Island Airport.

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

    The required travel and health documents for your Islip Long Island Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Islip Long Island Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near New York?

Book flights to New York if you plan to visit one of these locations
Montauk
Riverhead
Southampton
Sag Harbor
Amagansett

Why use momondo?

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

Finding the right flight to Islip from New York 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 New York to Islip with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Islip from New York with this policy.

How can momondo help me find flights from New York 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 New York.

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

Yes. momondo can track prices for New York to Islip 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.

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