HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$88+ Cheap flights from Puerto Rico to Islip, NY (ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — ISP
Feb 17 — Feb 241
Tue 2/17
Tue 2/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Puerto Rico to Islip with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Puerto Rico to Islip

Keep the following information in mind while searching for Puerto Rico to Islip flight deals. Data was last updated January 18, 2026.

Round-trip from

$179
(CheapOair)

One-way from

$88
(CheapOair)

Popular in

August

Cheapest in

February

Average price

$200
From Puerto Rico to Islip Long Island
Search Deals
One-way flight from Puerto Rico to Islip Long Island
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Puerto Rico to Islip

Cheapest flights from Puerto Rico to Islip
Explore the most affordable flight options available from Puerto Rico to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 18, 2026.

This CheapOair deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/267:09 pm
SJU
-
ISP
1 stop22h 03m
Frontier
Sat 2/288:23 pm
ISP
-
SJU
1 stop29h 30m
Frontier
Deal found 1/18$179
This CheapOair deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/267:09 pm
SJU
-
ISP
1 stop22h 03m
Frontier
Mon 3/23:34 pm
ISP
-
SJU
1 stop10h 19m
Frontier
Deal found 1/16$183
This CheapOair deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/284:36 pm
SJU
-
ISP
1 stop27h 12m
Frontier
Mon 2/27:43 pm
ISP
-
SJU
1 stop27h 16m
Frontier
Deal found 1/17$204
This CheapOair deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/147:54 pm
SJU
-
ISP
1 stop24h 12m
Frontier
Mon 2/238:23 am
ISP
-
SJU
1 stop15h 20m
Frontier
Deal found 1/16$209
This CheapOair deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/24:40 pm
SJU
-
ISP
1 stop8h 46m
Frontier
Sat 4/117:30 pm
ISP
-
SJU
1 stop28h 32m
Frontier
Deal found 1/18$212
This CheapOair deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/273:53 am
SJU
-
ISP
1 stop8h 13m
Frontier
Sat 2/288:23 pm
ISP
-
SJU
1 stop29h 30m
Frontier
Deal found 1/15$215
This CheapOair deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/58:00 am
SJU
-
ISP
1 stop11h 48m
Frontier
Sun 2/87:53 pm
ISP
-
SJU
1 stop26h 43m
Frontier
Deal found 1/16$218
This CheapOair deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/294:36 pm
SJU
-
ISP
1 stop29h 11m
Frontier
Sun 2/19:25 am
ISP
-
SJU
1 stop14h 43m
Frontier
Deal found 1/16$239
This CheapOair deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2712:27 pm
SJU
-
ISP
1 stop23h 39m
Frontier
Sat 2/288:23 pm
ISP
-
SJU
1 stop29h 30m
Frontier
Deal found 1/15$240
This CheapOair deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2712:27 pm
SJU
-
ISP
1 stop23h 39m
Frontier
Mon 3/28:23 am
ISP
-
SJU
1 stop24h 31m
Frontier
Deal found 1/16$244
This CheapOair deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3011:34 am
SJU
-
ISP
1 stop10h 13m
Frontier
Sun 2/19:25 am
ISP
-
SJU
1 stop14h 43m
Frontier
Deal found 1/16$253

Cheapflights Fare Finder

 
Customize your flight search to find flights from Puerto Rico to Islip 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, Cheapflights users made 2,558,603 searches. Data last updated January 18, 2026.
Use the filters below to find and compare flights from Puerto Rico to Islip that are best for you.

Fly from

Puerto Rico

Fly to

Islip

Route

Depart

Return

Price

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Wed 2/11

3:53 am-2:39 pm

1 stop11h 46m

Islip Long Island

Thu 2/19

5:07 pm-2:25 am

1 stop8h 18m

$204

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Wed 1/28

4:36 pm-6:48 pm

1 stop27h 12m

Islip Long Island

Mon 2/2

7:43 pm-3:26 pm

1 stop18h 43m

$204

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 4/2

4:40 pm-1:26 am

1 stop8h 46m

Islip Long Island

Sat 4/11

7:30 pm-12:02 am

1 stop28h 32m

$212

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Fri 2/27

3:53 am-11:06 am

1 stop8h 13m

Islip Long Island

Sat 2/28

8:23 pm-2:53 am

1 stop29h 30m

$215

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 2/5

6:00 am-6:48 pm

1 stop13h 48m

Islip Long Island

Fri 2/6

9:43 pm-11:59 pm

1 stop25h 16m

$218

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Sat 2/14

7:54 pm-7:48 am

1 stop12h 54m

Islip Long Island

Sun 2/22

8:21 pm-9:54 am

1 stop12h 33m

$218

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Fri 2/27

12:27 pm-11:06 am

1 stop23h 39m

Islip Long Island

Mon 3/2

2:17 pm-2:25 am

1 stop11h 08m

$218

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 4/2

4:40 pm-1:26 am

1 stop8h 46m

Islip Long Island

Thu 4/9

8:36 pm-11:40 pm

1 stop27h 04m

$239

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 1/29

4:36 pm-8:47 pm

1 stop29h 11m

Islip Long Island

Sun 2/1

9:25 am-3:26 pm

1 stop29h 01m

$239

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Fri 2/27

12:27 pm-11:06 am

1 stop23h 39m

Islip Long Island

Sat 2/28

8:23 pm-2:53 am

1 stop29h 30m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/17

Showing 1-10 of 20 results
1
2

Best time to book a flight from Puerto Rico to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Puerto Rico with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Puerto Rico to Islip

What is the cheapest month to book a flight from Puerto Rico to Islip, New York?

Currently, October is the cheapest month in which you can book a flight from Puerto Rico to Islip, New York (average of $51). Flying from Puerto Rico to Islip, New York in August is currently the most expensive (average of $118). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Puerto Rico to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Islip from Puerto Rico?

    If you book a flight to Islip from Puerto Rico, you will be flying to Long Island, which is the city’s only airport. Islip Long Island (ISP) is located 7.2 mi from the center of Islip.

  • How long is the flight from Puerto Rico to Islip, New York?

    For as low as $204, Frontier can have you in Islip, New York from Puerto Rico in 11h 46m. There are 1599 mi between Puerto Rico and Islip, New York.

  • Can I find deals for flights from Puerto Rico to Islip that include hotel bookings?

    Yes. In addition to deals on Puerto Rico to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Puerto Rico to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Puerto Rico to Islip.

  • Can I find deals for business class flights from Puerto Rico to Islip?

    Yes. Cheapflights offers flight deals from Puerto Rico to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Puerto Rico to Islip, New York?

    Currently, October is the cheapest month in which you can book a flight from Puerto Rico to Islip, New York (average of $51). Flying from Puerto Rico to Islip, New York in August is currently the most expensive (average of $118). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Puerto Rico to Islip

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to John F Kennedy Intl flights
Santo Domingo to John F Kennedy Intl flights
Santo Domingo to Newark flights
Luis Munoz Marin Intl to Newark flights
Punta Cana to Newark flights
Punta Cana to John F Kennedy Intl flights
Santo Domingo to LaGuardia flights
Luis Munoz Marin Intl to LaGuardia flights
Santiago de los Caballeros to Newark flights
Punta Cana to LaGuardia flights
Santiago de los Caballeros to John F Kennedy Intl flights
Port of Spain to John F Kennedy Intl flights
Kingston to John F Kennedy Intl flights
Santiago de los Caballeros to LaGuardia flights
Aguadilla to John F Kennedy Intl flights
Montego Bay to John F Kennedy Intl flights
Bridgetown to John F Kennedy Intl flights
St. George's to John F Kennedy Intl flights
Montego Bay to Newark flights
Kingston to Newark flights
Kingston to LaGuardia flights
Oranjestad to John F Kennedy Intl flights
Nassau to John F Kennedy Intl flights
Saint Thomas Island to John F Kennedy Intl flights
Luis Munoz Marin Intl to Buffalo flights
Oranjestad to Newark flights
Montego Bay to LaGuardia flights
Aguadilla to Newark flights
Simpson Bay to Newark flights
Aguadilla to LaGuardia flights
Willemstad to John F Kennedy Intl flights
Simpson Bay to John F Kennedy Intl flights
Port of Spain to LaGuardia flights
St. John's to John F Kennedy Intl flights
Nassau to Newark flights
Luis Munoz Marin Intl to Islip flights
Port of Spain to Newark flights
Nassau to LaGuardia flights
Oranjestad to LaGuardia flights
Saint Thomas Island to Newark flights
Bridgetown to Newark flights
Willemstad to Newark flights
Puerto Plata to John F Kennedy Intl flights
Ponce to John F Kennedy Intl flights
Bridgetown to LaGuardia flights
Puerto Plata to Newark flights
Luis Munoz Marin Intl to Albany flights
Simpson Bay to LaGuardia flights
Ponce to Newark flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.