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Cheap flights from Islip (ISP) to Puerto Rico from $85

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 5/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ISP — SJU
May 19 — May 261
From?
To?
Sun 5/19
Sun 5/26
1 adult, Economy
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How far in advance should I book a flight from Islip, New York to Puerto Rico?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 31 days in advance, which can save you up to 27% on flights from Islip, New York to Puerto Rico compared to booking the week you need them. Waiting 31 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $326. For sooner than that we have options available in the next 3 days from $343.

What is the cheapest month to fly from Islip, New York to Puerto Rico?

September can be a great time to fly to Puerto Rico from Islip, New York with a flight ticket averaging about $324. Cheapflights users have found deals in the month of September for as cheap as $85. The most expensive prices can be found in the month of December.

When is the cheapest time to fly from Islip, New York to Puerto Rico (ISP - PR)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to Puerto Rico as you normally would.

Cheap Frontier flights from Islip to Puerto Rico

Explore cheap flight options specifically provided by Frontier for the route between Islip and Puerto Rico. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 14, 2024.
Wed 9/45:25 pmISP - SJU
1 stop8h 38mFrontier
Sat 9/148:09 pmSJU - ISP
1 stop12h 17mFrontier
Deal found 5/13$170
Tue 5/284:49 pmISP - SJU
1 stop9h 20mFrontier
Sat 6/16:18 pmSJU - ISP
1 stop13h 55mFrontier
Deal found 5/12$214
Tue 5/284:49 pmISP - SJU
1 stop17h 58mFrontier
Fri 5/313:08 amSJU - ISP
1 stop29h 05mFrontier
Deal found 5/12$219
Tue 9/105:25 pmISP - SJU
1 stop8h 38mFrontier
Thu 9/197:00 amSJU - ISP
1 stop13h 45mFrontier
Deal found 5/13$244
Sun 6/168:19 pmISP - SJU
1 stop29h 40mFrontier
Fri 6/2110:35 amSJU - ISP
1 stop23h 54mFrontier
Deal found 5/13$245
Fri 6/144:46 pmISP - SJU
1 stop9h 13mFrontier
Mon 6/1710:15 pmSJU - ISP
1 stop9h 25mFrontier
Deal found 5/13$268
Tue 7/29:43 pmISP - SJU
1 stop13h 00mFrontier
Tue 7/97:52 pmSJU - ISP
1 stop12h 34mFrontier
Deal found 5/13$270
Thu 7/115:25 pmISP - SJU
1 stop8h 38mFrontier
Wed 7/173:08 amSJU - ISP
1 stop10h 49mFrontier
Deal found 5/12$294
Fri 7/195:25 pmISP - SJU
1 stop8h 38mFrontier
Mon 7/228:09 pmSJU - ISP
1 stop12h 17mFrontier
Deal found 5/12$303

Cheap Islip to Puerto Rico flights in May & June 2024

Find cheap flight options from Islip to Puerto Rico specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Prices were last updated on May 14, 2024.
Tue 5/284:49 pmISP - SJU
1 stop9h 20mFrontier
Sat 6/16:18 pmSJU - ISP
1 stop13h 55mFrontier
Deal found 5/12$214
Tue 5/284:49 pmISP - SJU
1 stop17h 58mFrontier
Fri 5/313:08 amSJU - ISP
1 stop29h 05mFrontier
Deal found 5/12$219
Sun 6/168:19 pmISP - SJU
1 stop29h 40mFrontier
Fri 6/2110:35 amSJU - ISP
1 stop23h 54mFrontier
Deal found 5/13$245
Tue 5/146:05 pmISP - SJU
1 stop7h 51mFrontier
Tue 5/218:32 pmSJU - ISP
1 stop11h 41mFrontier
Deal found 5/13$264
Fri 6/144:46 pmISP - SJU
1 stop9h 13mFrontier
Mon 6/1710:15 pmSJU - ISP
1 stop9h 25mFrontier
Deal found 5/13$268
Tue 5/146:05 pmISP - SJU
1 stop7h 51mFrontier
Mon 5/202:48 amSJU - ISP
1 stop10h 29mFrontier
Deal found 5/13$278
Sun 5/2610:27 pmISP - SJU
1 stop12h 20mFrontier
Sun 6/28:32 pmSJU - ISP
1 stop11h 41mFrontier
Deal found 5/13$308
Tue 5/149:50 pmISP - SJU
1 stop12h 48mFrontier
Wed 5/158:11 pmSJU - ISP
1 stop12h 02mFrontier
Deal found 5/12$313
Thu 6/274:46 pmISP - SJU
1 stop9h 07mFrontier
Tue 7/28:28 pmSJU - ISP
1 stop11h 12mFrontier
Deal found 5/12$314

Islip to Puerto Rico 2024 flight deals

Discover exclusive flight deals for travel between Islip and Puerto Rico in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 14, 2024.
Wed 9/45:25 pmISP - SJU
1 stop8h 38mFrontier
Sat 9/148:09 pmSJU - ISP
1 stop12h 17mFrontier
Deal found 5/13$170
Tue 5/284:49 pmISP - SJU
1 stop9h 20mFrontier
Sat 6/16:18 pmSJU - ISP
1 stop13h 55mFrontier
Deal found 5/12$214
Tue 5/284:49 pmISP - SJU
1 stop17h 58mFrontier
Fri 5/313:08 amSJU - ISP
1 stop29h 05mFrontier
Deal found 5/12$219
Tue 9/105:25 pmISP - SJU
1 stop8h 38mFrontier
Thu 9/197:00 amSJU - ISP
1 stop13h 45mFrontier
Deal found 5/13$244
Sun 6/168:19 pmISP - SJU
1 stop29h 40mFrontier
Fri 6/2110:35 amSJU - ISP
1 stop23h 54mFrontier
Deal found 5/13$245
Tue 5/146:05 pmISP - SJU
1 stop7h 51mFrontier
Tue 5/218:32 pmSJU - ISP
1 stop11h 41mFrontier
Deal found 5/13$264
Fri 6/144:46 pmISP - SJU
1 stop9h 13mFrontier
Mon 6/1710:15 pmSJU - ISP
1 stop9h 25mFrontier
Deal found 5/13$268
Tue 7/29:43 pmISP - SJU
1 stop13h 00mFrontier
Tue 7/97:52 pmSJU - ISP
1 stop12h 34mFrontier
Deal found 5/13$270
Tue 5/146:05 pmISP - SJU
1 stop7h 51mFrontier
Mon 5/202:48 amSJU - ISP
1 stop10h 29mFrontier
Deal found 5/13$278

Islip to Puerto Rico flights leaving soon

Find last-minute flight options from Islip to Puerto Rico for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 14, 2024.
Thu 5/234:49 pmISP - SJU
1 stop9h 25mFrontier
Mon 5/2710:23 pmSJU - ISP
1 stop9h 50mFrontier
Deal found 5/13$1,074

One-way flights to Puerto Rico from Islip

Search for one-way flight options from Islip to Puerto Rico. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 14, 2024.
Tue 5/219:42 pmISP - SJU
1 stop13h 05mFrontier
Deal found 5/13$85
Wed 5/224:49 pmISP - SJU
1 stop9h 05mFrontier
Deal found 5/13$129
Tue 7/235:25 pmISP - SJU
1 stop8h 38mFrontier
Deal found 5/13$135
Mon 5/204:49 pmISP - SJU
1 stop9h 09mFrontier
Deal found 5/13$159
Wed 5/224:49 pmISP - SJU
1 stop9h 05mFrontier
Deal found 5/13$179
Sun 5/1910:27 pmISP - SJU
1 stop12h 20mFrontier
Deal found 5/13$199
Sat 5/254:49 pmISP - SJU
1 stop9h 20mFrontier
Deal found 5/13$209
Fri 5/244:49 pmISP - SJU
1 stop9h 11mFrontier
Deal found 5/13$219
Sun 9/110:59 amISP - SJU
1 stop10h 48mFrontier
Deal found 5/13$239

Find flights from Islip to Puerto Rico within your budget

Customize your flight search to find flights from Islip to Puerto Rico 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 2,633,403 searches. Data last updated May 14, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$170 - $463

Route

Depart

Return

Price

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Wed 9/4

1 stop8h 38m

San Juan Luis Munoz Marin Intl

Sat 9/14

1 stop12h 17m

$170

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Tue 5/28

1 stop9h 20m

San Juan Luis Munoz Marin Intl

Sat 6/1

1 stop13h 55m

$214

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Tue 5/28

1 stop17h 58m

San Juan Luis Munoz Marin Intl

Fri 5/31

1 stop29h 05m

$219

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Tue 9/10

1 stop8h 38m

San Juan Luis Munoz Marin Intl

Thu 9/19

1 stop13h 45m

$244

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Sun 6/16

1 stop29h 40m

San Juan Luis Munoz Marin Intl

Fri 6/21

1 stop23h 54m

$245

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Fri 6/14

1 stop9h 13m

San Juan Luis Munoz Marin Intl

Mon 6/17

1 stop9h 25m

$268

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Tue 7/2

1 stop13h 00m

San Juan Luis Munoz Marin Intl

Tue 7/9

1 stop12h 34m

$270

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Thu 7/11

1 stop8h 38m

San Juan Luis Munoz Marin Intl

Wed 7/17

1 stop10h 49m

$294

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Sun 6/16

2 stops22h 25m

San Juan Luis Munoz Marin Intl

Thu 6/20

2 stops13h 34m

$463

Flights are sorted by cheapest first

Deals found on 5/13

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated May 14, 2024.
Frontier
6.3
Okay
4,081 reviews
Check prices

Crew

7.1

Overall

6.3

Boarding

6.6

Comfort

5.8

Food

5.2

Entertainment

4.9

Reviews

1 / 10

Inexpensive flight, and everything is an extra charge, so okay, fair deal!

Frontier
6.3
Okay
4,081 reviews
Frontier
6.3
Okay
4,081 reviews
Check prices

Crew

7.1

Overall

6.3

Boarding

6.6

Comfort

5.8

Food

5.2

Entertainment

4.9

Reviews

1 / 10

Inexpensive flight, and everything is an extra charge, so okay, fair deal!

Related info for your journey

Find useful and relevant information for your journey from Islip to Puerto Rico. 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 from for flights from Islip to Puerto Rico?

    Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly out of when you book flights from Islip to Puerto Rico.

  • Can I find flights from Islip, New York to Puerto Rico for under $200 on Cheapflights?

    Yes, there are multiple flights from Islip, New York to Puerto Rico for under $200. The cheapest flight booked recently is on Frontier for just $170, but on average you can expect to pay $304.

  • Are there last-minute flights available from Islip, New York to Puerto Rico for under $1,100?

    There are currently 1+ open flights from Islip, New York to Puerto Rico within the next 7 days for less than $1,100.

  • What does ISP to SJU mean?

    ISP stands for Islip Long Island Airport, while SJU stands for San Juan Luis Munoz Marin Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Aguadilla Borinquen Airport (BQN), Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Culebra Airport (CPX), Vieques Airport (VQS) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Islip to Puerto Rico that include extra baggage allowance?

    The amount of baggage you can bring on your Islip to Puerto Rico flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Islip to Puerto Rico with specific airlines?

    Yes, Cheapflights allows you to browse and filter Islip to Puerto Rico flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Islip to Puerto Rico that allow pets onboard?

    Many airlines flying from Islip to Puerto Rico offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Islip to Puerto Rico?

    Yes, you can often find last-minute deals on Islip to Puerto Rico flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Islip, New York to Puerto Rico flight deals updated?

    The Islip, New York to Puerto Rico flight deals you see on this page were last updated on 5/13.

See more FAQs

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Alternative routes for Islip to Puerto Rico
See prices for flight routes from nearby airports that may be better suited for you.

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Top airline flying from Islip to Puerto Rico

Discover the top airline that operate flights from Islip to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated May 14, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$170Average$268FlexibilityNo cancel feeOn-time62%
Search Frontier flights
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Islip, New York to San Juan flights

Search flights from Islip to Puerto Rico by cabin class

Find flights from Islip to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
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Economy Class

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Fly with Cheapflights

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How does Cheapflights help users find flights from Islip to Puerto Rico?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Puerto Rico from Islip today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Islip to Puerto Rico?

Cheapflights helps you find that perfect flight to Puerto Rico from Islip by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Islip to Puerto Rico with no change fees?

Yes, we can. To see specific flights from Islip to Puerto Rico with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Islip to Puerto Rico become cheaper?

Not ready to book yet? You can track prices for flights from Islip to Puerto Rico on Cheapflights with our Price Alert feature and get notified when better prices are available.

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