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ISP - SJU
Sep 14 - Sep 21
San Juan

$130+ Cheap flights from Islip (ISP) to San Juan

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SJU
Sep 14 — Sep 211
Sat 9/14
Sat 9/21
1 adult, Economy
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ISP - SJU
Sep 14 - Sep 21

Find cheap flights from Islip to San Juan with Cheapflights

1. Tell us where you want to go
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Cheap flight deals from Islip to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 9, 2024.

Popular in

April

Cheapest in

November

Round-trip from

$143
(Mytrip)

One-way from

$130
(Frontier)
High demand for flights, 59% potential price rise
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Best time to find cheap flights, 61% potential price drop
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From Islip Long Island to San Juan
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One-way flight from Islip Long Island to San Juan
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Cheap Islip to San Juan flights in September & October 2024

Find cheap flight options from Islip to San Juan specifically for the months of September and October 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,868,638 searches. Prices were last updated on September 9, 2024.
These are some of the most attractive deals on flights from Islip to San Juan in 2024. Check back in a little while for more flight options.
This Mytrip deal was found by Cheapflights users on 9/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/225:45 amISP - SJU
1 stop27h 28mFrontier
Mon 10/283:03 amSJU - ISP
1 stop21h 35mFrontier
Deal found 9/8$143
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/95:45 amISP - SJU
1 stop26h 39mFrontier
Sat 10/122:50 amSJU - ISP
1 stop21h 48mFrontier
Deal found 9/9$156
This CheapOair deal was found by Cheapflights users on 9/8. 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 10/85:45 amISP - SJU
1 stop27h 28mFrontier
Tue 10/1510:18 amSJU - ISP
1 stop14h 20mFrontier
Deal found 9/8$158
This CheapOair deal was found by Cheapflights users on 9/8. 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 10/85:45 amISP - SJU
1 stop27h 28mFrontier
Mon 10/143:03 amSJU - ISP
1 stop21h 35mFrontier
Deal found 9/8$164
This Mytrip deal was found by Cheapflights users on 9/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/225:45 amISP - SJU
1 stop27h 28mFrontier
Tue 10/2910:18 amSJU - ISP
1 stop14h 20mFrontier
Deal found 9/8$218
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/49:40 amISP - SJU
1 stop7h 12mFrontier
Mon 10/76:05 pmSJU - ISP
1 stop6h 33mFrontier
Deal found 9/9$225
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/49:40 amISP - SJU
1 stop7h 12mFrontier
Mon 10/76:05 pmSJU - ISP
1 stop6h 33mFrontier
Deal found 9/9$226
This Trip.com deal was found by Cheapflights users on 9/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/235:45 amISP - SJU
2 stops18h 22mMultiple Airlines
Sun 10/273:40 amSJU - ISP
1 stop20h 58mMultiple Airlines
Deal found 9/7$252
This Mytrip deal was found by Cheapflights users on 9/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/225:45 amISP - SJU
1 stop27h 28mFrontier
Sun 10/274:19 pmSJU - ISP
1 stop20h 10mFrontier
Deal found 9/8$260

Islip to San Juan 2024 flight deals

Discover exclusive flight deals for travel between Islip and San Juan in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,868,638 searches. Data last updated September 9, 2024.
These are some of the most attractive deals on flights from Islip to San Juan in 2024. Check back in a little while for more flight options.
This Mytrip deal was found by Cheapflights users on 9/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/225:45 amISP - SJU
1 stop27h 28mFrontier
Mon 10/283:03 amSJU - ISP
1 stop21h 35mFrontier
Deal found 9/8$143
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/95:45 amISP - SJU
1 stop26h 39mFrontier
Sat 10/122:50 amSJU - ISP
1 stop21h 48mFrontier
Deal found 9/9$156
This CheapOair deal was found by Cheapflights users on 9/8. 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 10/85:45 amISP - SJU
1 stop27h 28mFrontier
Tue 10/1510:18 amSJU - ISP
1 stop14h 20mFrontier
Deal found 9/8$158
This CheapOair deal was found by Cheapflights users on 9/8. 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 10/85:45 amISP - SJU
1 stop27h 28mFrontier
Mon 10/143:03 amSJU - ISP
1 stop21h 35mFrontier
Deal found 9/8$164
This Frontier deal was found by Cheapflights users on 9/9. 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 11/65:25 pmISP - SJU
1 stop8h 38mFrontier
Sun 11/109:09 pmSJU - ISP
1 stop12h 17mFrontier
Deal found 9/9$178
This Mytrip deal was found by Cheapflights users on 9/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/225:45 amISP - SJU
1 stop27h 28mFrontier
Tue 10/2910:18 amSJU - ISP
1 stop14h 20mFrontier
Deal found 9/8$218
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/49:40 amISP - SJU
1 stop7h 12mFrontier
Mon 10/76:05 pmSJU - ISP
1 stop6h 33mFrontier
Deal found 9/9$225
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/49:40 amISP - SJU
1 stop7h 12mFrontier
Mon 10/76:05 pmSJU - ISP
1 stop6h 33mFrontier
Deal found 9/9$226
This Trip.com deal was found by Cheapflights users on 9/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/235:45 amISP - SJU
2 stops18h 22mMultiple Airlines
Sun 10/273:40 amSJU - ISP
1 stop20h 58mMultiple Airlines
Deal found 9/7$252

Islip to San Juan flights leaving soon

Find last-minute flight options from Islip to San Juan 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 2,868,638 searches. Data last updated September 9, 2024.
Users seeking a last-minute flight from Islip to San Juan should consider booking one of these fares. Tip: verify your flight details before completing your reservation.
This Frontier deal was found by Cheapflights users on 9/7. 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 9/199:36 amISP - SJU
1 stop13h 51mFrontier
Sun 9/226:30 amSJU - ISP
1 stop13h 22mFrontier
Deal found 9/7$278
This CheapOair deal was found by Cheapflights users on 9/8. 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 9/181:12 pmISP - SJU
1 stop12h 44mFrontier
Sat 9/217:30 amSJU - ISP
1 stop25h 35mFrontier
Deal found 9/8$287

One-way flights to San Juan from Islip

Search for one-way flight options from Islip to San Juan. 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 2,868,638 searches. Data last updated September 9, 2024.
Users traveling one-way from Islip to San Juan can select one of these great deals. Those needing a return flight from Islip to San Juan can use the search form above.
This Frontier deal was found by Cheapflights users on 9/8. 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 12/55:25 pmISP - SJU
1 stop8h 38mFrontier
Deal found 9/8$130
This Frontier deal was found by Cheapflights users on 9/9. 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 10/39:36 amISP - SJU
1 stop13h 51mFrontier
Deal found 9/9$134
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/209:40 amISP - SJU
1 stop7h 12mFrontier
Deal found 9/8$143
This Frontier deal was found by Cheapflights users on 9/8. 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.
Sun 11/175:25 pmISP - SJU
1 stop8h 38mFrontier
Deal found 9/8$144
This Cheapflightsfares deal was found by Cheapflights users on 9/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/169:40 amISP - SJU
1 stop7h 20mFrontier
Deal found 9/7$162
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/169:40 amISP - SJU
1 stop7h 20mFrontier
Deal found 9/9$163
This Frontier deal was found by Cheapflights users on 9/8. 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 10/315:45 amISP - SJU
1 stop11h 02mFrontier
Deal found 9/8$164
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/279:40 amISP - SJU
1 stop7h 12mFrontier
Deal found 9/8$172
This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/309:40 amISP - SJU
1 stop7h 20mFrontier
Deal found 9/8$188

Find flights from Islip to San Juan within your budget

Customize your flight search to find flights from Islip to San Juan 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 2,868,638 searches. Data last updated September 9, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$143 - $440

Route

Depart

Return

Price

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Tue 10/22

1 stop27h 28m

San Juan Luis Munoz Marin Intl

Mon 10/28

1 stop21h 35m

$143

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Wed 10/9

1 stop26h 39m

San Juan Luis Munoz Marin Intl

Sat 10/12

1 stop21h 48m

$156

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Tue 10/8

1 stop27h 28m

San Juan Luis Munoz Marin Intl

Tue 10/15

1 stop14h 20m

$158

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Tue 10/8

1 stop27h 28m

San Juan Luis Munoz Marin Intl

Mon 10/14

1 stop21h 35m

$164

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Wed 11/6

1 stop8h 38m

San Juan Luis Munoz Marin Intl

Sun 11/10

1 stop12h 17m

$178

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Wed 10/23

2 stops18h 22m

San Juan Luis Munoz Marin Intl

Sun 10/27

1 stop20h 58m

$252

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Wed 10/23

1 stop19h 54m

San Juan Luis Munoz Marin Intl

Sun 10/27

1 stop20h 58m

$267

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Sat 10/26

1 stop6h 46m

San Juan Luis Munoz Marin Intl

Sat 11/2

1 stop6h 34m

$368

Islip Long IslandSan Juan Luis Munoz Marin Intl

ISP - SJU

ISPSJU

Islip Long Island

Tue 10/8

1 stop7h 15m

San Juan Luis Munoz Marin Intl

Tue 10/15

2 stops15h 50m

$440

Flights are sorted by cheapest first

Deals found on 9/8

Best time to book a flight from Islip to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Islip 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.

Travel insights for flights from Islip to San Juan

Get recent, data-driven insights about flights from Islip to San Juan including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Islip, New York to San Juan?

Currently, September is the cheapest month in which you can book a flight from Islip, New York to San Juan (average of $85). Flying from Islip, New York to San Juan in December is currently the most expensive (average of $143). 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.

What is the cheapest time of day to fly from ISP to SJU?

Find hourly flight availability from Islip to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 9, 2024.

A simple way to save on the total cost of your ticket is to fly from Islip, New York to San Juan in the evening. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight in the morning.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated September 9, 2024.
See what other customers who have flown with Frontier, JetBlue and Southwest from Islip to San Juan have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.2
Very good
5,357 reviews

Comfort

8.1

Entertainment

7.8

Food

7.3

Boarding

8.3

Crew

8.7

Overall

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.2
Very good
5,357 reviews
Southwest
8.2
Very good
5,357 reviews

Comfort

8.1

Entertainment

7.8

Food

7.3

Boarding

8.3

Crew

8.7

Overall

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.6
Good
3,725 reviews
Southwest
8.2
Very good
5,357 reviews

Comfort

8.1

Entertainment

7.8

Food

7.3

Boarding

8.3

Crew

8.7

Overall

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Frontier
6.2
Okay
3,725 reviews
Southwest
8.2
Very good
5,357 reviews

Comfort

8.1

Entertainment

7.8

Food

7.3

Boarding

8.3

Crew

8.7

Overall

8.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Islip to San Juan. 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 San Juan?

    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 San Juan. 1 airline have flights from Long Island to San Juan on a regular basis. Booking flights from Islip Long Island to San Juan should not be difficult; the airport handles an average of 0 outbound flights to San Juan per day.

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

    Yes, there are multiple flights from Islip, New York to San Juan for under $200. The cheapest flight booked recently is on Frontier for just $143, but on average you can expect to pay $241.

  • Are there last-minute flights available from Islip, New York to San Juan for under $300?

    There are currently 2+ open flights from Islip, New York to San Juan within the next 7 days for less than $300.

  • What are the cheapest airlines flying from Islip, New York to San Juan round-trip?

    Currently priced at $143, Frontier will fly you from Islip, New York to San Juan and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from JetBlue and Southwest - these airlines can fly you to your destination from $368 and $440, respectively. Frontier is currently priced 62% below the average price you’ll pay for this route.

  • What does ISP to SJU mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Islip Long Island Airport to San Juan Luis Munoz Marin Intl Airport flight would often be abbreviated as a ISP to SJU flight. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Vieques Airport (VQS), Culebra Airport (CPX), Ceiba J. Aponte de la Torre Airport (NRR).

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

    The amount of baggage you can bring on your Islip to San Juan 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 San Juan with specific airlines?

    Yes, Cheapflights allows you to browse and filter Islip to San Juan 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 San Juan that include hotel bookings?

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

  • How can I find direct flights from Islip to San Juan?

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

  • Can I find deals for business class flights from Islip to San Juan?

    Yes. Cheapflights offers flight deals from Islip to San Juan 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 San Juan that allow pets onboard?

    Many airlines flying from Islip to San Juan 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 San Juan?

    Yes, you can often find last-minute deals on Islip to San Juan 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 San Juan flight deals updated?

    The Islip, New York to San Juan flight deals you see on this page were last updated on 9/9.

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

    Currently, September is the cheapest month in which you can book a flight from Islip, New York to San Juan (average of $85). Flying from Islip, New York to San Juan in December is currently the most expensive (average of $143). 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

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 Islip to San Juan
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 San Juan

Discover the top airline that operate flights from Islip to San Juan. 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 2,868,638 searches. Data last updated September 9, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$170Average$284FlexibilityNo cancel feeOn-time62%
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