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Islip

$96+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — ISP
mar. 31 — abr. 71
mar. 3/31
mar. 4/7
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 marzo 1, 2026.

This CheapOair deal was found by Cheapflights users on 2/26. 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.
jue. 4/303:39 pm
SJU
-
ISP
1 stop17h 34m
Frontier
dom. 5/34:07 pm
ISP
-
SJU
1 stop9h 54m
Frontier
Deal found 2/26$205
This CheapOair deal was found by Cheapflights users on 2/27. 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.
vie. 4/177:15 am
SJU
-
ISP
1 stop12h 21m
Frontier
dom. 4/194:07 pm
ISP
-
SJU
1 stop21h 59m
Frontier
Deal found 2/27$213
This Frontier deal was found by Cheapflights users on 2/28. 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.
vie. 4/177:15 am
SJU
-
ISP
1 stop12h 21m
Frontier
vie. 4/244:07 pm
ISP
-
SJU
1 stop9h 54m
Frontier
Deal found 2/28$214
This CheapOair deal was found by Cheapflights users on 2/25. 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.
sáb. 4/43:23 am
SJU
-
ISP
1 stop15h 41m
Frontier
dom. 4/127:59 pm
ISP
-
SJU
1 stop15h 19m
Frontier
Deal found 2/25$234
This CheapOair deal was found by Cheapflights users on 2/28. 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.
vie. 4/177:15 am
SJU
-
ISP
1 stop12h 21m
Frontier
jue. 4/234:07 pm
ISP
-
SJU
1 stop19h 06m
Frontier
Deal found 2/28$247
This CheapOair deal was found by Cheapflights users on 2/28. 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.
sáb. 5/27:00 am
SJU
-
ISP
1 stop26h 13m
Frontier
vie. 5/84:07 pm
ISP
-
SJU
1 stop9h 54m
Frontier
Deal found 2/28$248
This CheapOair deal was found by Cheapflights users on 2/26. 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.
vie. 5/293:59 pm
SJU
-
ISP
1 stop17h 09m
Frontier
mar. 6/210:03 am
ISP
-
SJU
1 stop9h 07m
Frontier
Deal found 2/26$249
This CheapOair deal was found by Cheapflights users on 2/27. 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.
jue. 4/23:16 am
SJU
-
ISP
1 stop7h 40m
Frontier
vie. 4/104:01 pm
ISP
-
SJU
1 stop10h 00m
Frontier
Deal found 2/27$261
This CheapOair deal was found by Cheapflights users on 2/28. 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.
jue. 4/233:39 pm
SJU
-
ISP
1 stop17h 34m
Frontier
lun. 4/274:07 pm
ISP
-
SJU
1 stop17h 47m
Frontier
Deal found 2/28$274
This Frontier deal was found by Cheapflights users on 2/26. 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.
vie. 4/177:15 am
SJU
-
ISP
1 stop12h 21m
Frontier
jue. 4/304:07 pm
ISP
-
SJU
1 stop6h 49m
Frontier
Deal found 2/26$275
This Priceline deal was found by Cheapflights users on 2/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/36:30 am
SJU
-
ISP
1 stop26h 38m
Frontier
mar. 9/810:03 am
ISP
-
SJU
1 stop15h 53m
Frontier
Deal found 2/28$276
This CheapOair deal was found by Cheapflights users on 2/26. 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.
mié. 5/206:30 am
SJU
-
ISP
1 stop26h 38m
Frontier
lun. 5/2510:03 am
ISP
-
SJU
1 stop27h 41m
Frontier
Deal found 2/26$288

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 marzo 1, 2026.

Round-trip from

$205
(CheapOair)

One-way from

$96
(CheapOair)

Popular in

December

Cheapest in

October

Average price

$217
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. 8% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 marzo 1, 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

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

jue. 4/16

4:14 pm-7:36 pm

1 stop27h 22m

Islip Long Island

dom. 4/19

8:31 pm-11:29 pm

1 stop26h 58m

$213

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

vie. 4/17

7:15 am-7:36 pm

1 stop12h 21m

Islip Long Island

vie. 4/24

4:07 pm-2:01 am

1 stop9h 54m

$214

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

sáb. 4/4

3:23 am-7:04 pm

1 stop15h 41m

Islip Long Island

dom. 4/12

7:59 pm-11:18 am

1 stop15h 19m

$234

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

sáb. 5/2

7:00 am-9:13 am

1 stop26h 13m

Islip Long Island

vie. 5/8

4:07 pm-2:01 am

1 stop9h 54m

$248

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

mié. 5/20

6:30 am-9:08 am

1 stop26h 38m

Islip Long Island

lun. 5/25

10:03 am-1:44 pm

1 stop27h 41m

$288

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

vie. 3/6

6:30 am-12:47 pm

1 stop7h 17m

Islip Long Island

lun. 3/9

1:22 pm-1:58 am

1 stop12h 36m

$346

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

jue. 3/12

6:30 am-4:13 pm

1 stop9h 43m

Islip Long Island

dom. 3/15

4:34 pm-1:58 am

1 stop9h 24m

$363

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

mar. 5/26

6:10 am-2:34 pm

1 stop8h 24m

Islip Long Island

dom. 5/31

10:03 am-7:10 pm

1 stop9h 07m

$371

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

jue. 3/5

3:58 am-12:47 pm

1 stop9h 49m

Islip Long Island

dom. 3/8

5:08 pm-8:54 am

1 stop15h 46m

$373

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

lun. 4/27

7:15 am-7:36 pm

1 stop12h 21m

Islip Long Island

jue. 5/14

4:07 pm-2:01 am

1 stop9h 54m

$425

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 21 resultsSorted by cheapest first
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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 $213, Frontier can have you in Islip, New York from Puerto Rico in 27h 22m. 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

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