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Islip

$87+ 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
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This CheapOair deal was found by Cheapflights users on 12/16. 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 12/2510:33 amSJU - ISP
1 stop27h 36mFrontier
Thu 1/16:00 amISP - SJU
1 stop8h 31mFrontier
Deal found 12/16$205
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Wed 12/2410:33 amSJU - ISP
1 stop25h 52mFrontier
Fri 1/28:35 pmISP - SJU
1 stop29h 15mFrontier
Deal found 12/16$228
This CheapOair deal was found by Cheapflights users on 12/17. 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 12/319:37 pmSJU - ISP
1 stop14h 48mFrontier
Mon 1/58:24 pmISP - SJU
1 stop26h 53mFrontier
Deal found 12/17$238
This CheapOair deal was found by Cheapflights users on 12/15. 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.
Tue 12/309:37 pmSJU - ISP
1 stop20h 00mFrontier
Tue 1/138:00 amISP - SJU
1 stop8h 51mFrontier
Deal found 12/15$244
This Frontier deal was found by Cheapflights users on 12/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/243:55 amSJU - ISP
1 stop8h 30mFrontier
Tue 12/3012:20 pmISP - SJU
1 stop13h 30mFrontier
Deal found 12/16$245
This CheapOair deal was found by Cheapflights users on 12/17. 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.
Tue 12/309:37 pmSJU - ISP
1 stop20h 00mFrontier
Thu 1/16:00 amISP - SJU
1 stop25h 58mFrontier
Deal found 12/17$246
This CheapOair deal was found by Cheapflights users on 12/17. 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.
Sun 12/216:48 pmSJU - ISP
1 stop19h 21mFrontier
Mon 1/58:24 pmISP - SJU
1 stop26h 53mFrontier
Deal found 12/17$248
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Mon 12/299:37 pmSJU - ISP
1 stop14h 48mFrontier
Mon 1/58:24 pmISP - SJU
1 stop29h 26mFrontier
Deal found 12/16$253
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Mon 12/299:37 pmSJU - ISP
1 stop14h 48mFrontier
Fri 1/26:00 amISP - SJU
1 stop17h 54mFrontier
Deal found 12/16$267
This CheapOair deal was found by Cheapflights users on 12/16. 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.
Mon 12/293:55 amSJU - ISP
1 stop8h 30mFrontier
Fri 1/28:35 pmISP - SJU
1 stop29h 15mFrontier
Deal found 12/16$269

Find 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 December 18, 2025.

Round-trip from

$177
(CheapOair)

One-way from

$87
(CheapOair)

Popular in

August

Cheapest in

February

Average price

$260
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. 11% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 2025.
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

Sat 2/14

7:54 pm-7:06 pm

1 stop24h 12m

Islip Long Island

Sat 2/21

8:23 pm-12:54 am

1 stop27h 31m

$177

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 2/26

7:09 pm-4:12 pm

1 stop22h 03m

Islip Long Island

Mon 3/2

3:34 pm-2:53 am

1 stop10h 19m

$181

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 1/15

9:04 pm-8:09 pm

1 stop24h 05m

Islip Long Island

Mon 1/26

7:43 pm-3:26 pm

1 stop18h 43m

$181

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

Mon 2/2

7:43 pm-11:59 pm

1 stop27h 16m

$181

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 1/15

9:04 pm-8:09 pm

1 stop24h 05m

Islip Long Island

Thu 1/22

7:43 pm-10:24 am

1 stop13h 41m

$181

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 1/22

8:00 am-6:48 pm

1 stop11h 48m

Islip Long Island

Mon 1/26

7:43 pm-3:26 pm

1 stop18h 43m

$181

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 1/15

9:04 pm-8:09 pm

1 stop24h 05m

Islip Long Island

Sat 1/17

8:00 am-6:24 pm

1 stop9h 24m

$200

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 1/15

9:04 pm-8:09 pm

1 stop24h 05m

Islip Long Island

Mon 1/19

8:54 pm-3:26 pm

1 stop17h 32m

$200

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Mon 1/12

9:23 pm-10:46 pm

1 stop26h 23m

Islip Long Island

Mon 1/19

8:54 pm-3:26 pm

1 stop17h 32m

$200

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Wed 1/7

9:23 pm-7:45 pm

1 stop23h 22m

Islip Long Island

Sat 1/10

7:56 pm-8:54 am

1 stop11h 58m

$202

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 18 results
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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 $177, Frontier can have you in Islip, New York from Puerto Rico in 24h 12m. 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

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Alternative routes for Puerto Rico to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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