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Islip

$188+ 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — ISP
Jul 17 — Jul 241
Fri 7/17
Fri 7/24
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 June 17, 2026.

This Frontier deal was found by Cheapflights users on 6/16. 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.
Fri 9/43:06 am
SJU
-
ISP
1 stop6h 57m
Frontier
Wed 9/94:13 pm
ISP
-
SJU
1 stop9h 37m
Frontier
Deal found 6/16$356
This JetBlue deal was found by Cheapflights users on 6/13. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/253:01 pm
SJU
-
ISP
1 stop7h 55m
JetBlue
Sat 8/296:00 am
ISP
-
SJU
1 stop9h 21m
JetBlue
Deal found 6/13$412
This Frontier deal was found by Cheapflights users on 6/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/168:37 pm
SJU
-
ISP
1 stop13h 16m
Frontier
Wed 7/2210:57 am
ISP
-
SJU
1 stop8h 45m
Frontier
Deal found 6/17$440
This Frontier deal was found by Cheapflights users on 6/16. 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.
Sat 6/279:24 am
SJU
-
ISP
1 stop11h 33m
Frontier
Sun 6/289:52 pm
ISP
-
SJU
1 stop10h 03m
Frontier
Deal found 6/16$476
This Frontier deal was found by Cheapflights users on 6/14. 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.
Fri 7/173:10 am
SJU
-
ISP
1 stop6h 43m
Frontier
Fri 7/3110:57 am
ISP
-
SJU
1 stop10h 46m
Frontier
Deal found 6/14$490
This Frontier deal was found by Cheapflights users on 6/14. 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.
Thu 6/189:24 am
SJU
-
ISP
1 stop11h 33m
Frontier
Sun 6/219:52 pm
ISP
-
SJU
1 stop10h 03m
Frontier
Deal found 6/14$496
This Frontier deal was found by Cheapflights users on 6/16. 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.
Thu 7/238:37 pm
SJU
-
ISP
1 stop13h 16m
Frontier
Mon 7/2710:57 am
ISP
-
SJU
1 stop10h 46m
Frontier
Deal found 6/16$515
This JetBlue deal was found by Cheapflights users on 6/17. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:20 am
SJU
-
ISP
1 stop6h 56m
JetBlue
Sat 8/86:00 am
ISP
-
SJU
1 stop6h 46m
JetBlue
Deal found 6/17$578
This JetBlue deal was found by Cheapflights users on 6/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/232:20 am
SJU
-
ISP
1 stop8h 20m
JetBlue
Wed 7/83:07 pm
ISP
-
SJU
1 stop8h 50m
JetBlue
Deal found 6/16$642
This FlightHub deal was found by Cheapflights users on 6/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/165:32 am
SJU
-
ISP
1 stop16h 12m
JetBlue
Wed 7/226:00 am
ISP
-
SJU
2 stops10h 01m
JetBlue
Deal found 6/17$665

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 June 17, 2026.

Round-trip from

$356
(Frontier)

One-way from

$188
(Frontier)

Popular in

March

Cheapest in

October

Average price

$312
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. 4% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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 June 17, 2026.
Use the filters below to find and compare flights from Puerto Rico to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Fri 9/4

3:06 am-10:03 am

1 stop6h 57m

Islip Long Island

Wed 9/9

4:13 pm-1:50 am

1 stop9h 37m

$356

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Tue 8/25

3:01 pm-10:56 pm

1 stop7h 55m

Islip Long Island

Sat 8/29

6:00 am-3:21 pm

1 stop9h 21m

$412

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 7/16

8:37 pm-9:53 am

1 stop13h 16m

Islip Long Island

Wed 7/22

10:57 am-7:42 pm

1 stop8h 45m

$460

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Fri 7/17

3:10 am-9:53 am

1 stop6h 43m

Islip Long Island

Fri 7/31

10:57 am-9:43 pm

1 stop10h 46m

$490
Quickest round-trip

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Fri 7/31

2:20 am-9:16 am

1 stop6h 56m

Islip Long Island

Sat 8/8

6:00 am-12:46 pm

1 stop6h 46m

$578

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Thu 7/16

5:32 am-9:44 pm

1 stop16h 12m

Islip Long Island

Wed 7/22

6:00 am-4:01 pm

2 stops10h 01m

$665
Cheapest one-way

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Tue 7/28

9:42 am-7:33 pm

1 stop9h 51m

$228

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Tue 7/7

8:37 pm-9:53 am

1 stop13h 16m

$232

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Wed 7/29

2:05 pm-9:44 pm

1 stop7h 39m

$248

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Sun 7/26

8:37 pm-9:53 am

1 stop13h 16m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 13 resultsSorted by cheapest first
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
No data available for this route at this time. Please check back soon.

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 $356, Frontier can have you in Islip, New York from Puerto Rico in 6h 57m. There are 1599 mi between Puerto Rico and Islip, New York. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Puerto Rico to Islip, New York one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $119. JetBlue flights start at $174 while deals on Southwest start at $192 one-way.

  • 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.

See more FAQs

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