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San Juan

$84+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SJU
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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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 November 20, 2024.

Popular in

April

Cheapest in

November

Round-trip from

$152
(Priceline)

One-way from

$84
(Frontier)
High demand for flights, 40% potential price rise
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Best time to find cheap flights, 62% 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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Find flight deals from Islip to San Juan

Cheapest flights from Islip to San Juan
Explore the most affordable flight options available from Islip to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Priceline deal was found by Cheapflights users on 11/19. 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.
Sat 12/712:43 pmISP - SJU
1 stop12h 57mFrontier
Wed 12/119:15 pmSJU - ISP
1 stop15h 17mFrontier
Deal found 11/19$152
This Mytrip deal was found by Cheapflights users on 11/19. 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.
Sun 12/87:25 pmISP - SJU
3 stops40h 08mMultiple Airlines
Sun 12/158:31 pmSJU - ISP
2 stops17h 46mMultiple Airlines
Deal found 11/19$536
This JetBlue deal was found by Cheapflights users on 11/20. 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 12/204:03 pmISP - SJU
1 stop7h 47mJetBlue
Wed 12/255:01 amSJU - ISP
1 stop7h 32mJetBlue
Deal found 11/20$617
This Southwest deal was found by Cheapflights users on 11/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1411:25 amISP - SJU
2 stops12h 20mSouthwest
Wed 12/184:45 pmSJU - ISP
1 stop6h 30mSouthwest
Deal found 11/20$632

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 2,629,791 searches. Data last updated November 20, 2024.

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Any airport

Fly to

Any airport

Route

Depart

Return

Price

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Sat 12/7

12:43 pm-2:40 am

1 stop12h 57m

San Juan Luis Munoz Marin Intl

Wed 12/11

9:15 pm-11:32 am

1 stop15h 17m

$152

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Sat 1/11

7:25 pm-2:10 pm

3 stops41h 45m

San Juan Luis Munoz Marin Intl

Sun 1/19

7:00 am-6:41 pm

2 stops12h 41m

$419

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Fri 1/17

7:10 pm-9:50 am

1 stop13h 40m

San Juan Luis Munoz Marin Intl

Fri 1/24

6:50 am-3:15 pm

2 stops9h 25m

$470

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Sat 1/18

11:00 am-6:56 pm

1 stop6h 56m

San Juan Luis Munoz Marin Intl

Mon 1/20

6:01 am-11:45 am

1 stop6h 44m

$610

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Tue 12/31

9:25 pm-9:25 am

1 stop11h 00m

$84

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Sun 12/8

7:25 pm-12:33 pm

3 stops40h 08m

$206

IslipSan Juan

ISP - SJU

ISPSJU

Islip Long Island

Wed 1/15

12:40 pm-8:18 pm

1 stop6h 38m

$221

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

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 $254). Flying from Islip, New York to San Juan in March is currently the most expensive (average of $335). 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 November 20, 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 45% on your trip compared to booking a flight in the afternoon.

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 November 20, 2024.
See what other customers who have flown with Frontier and JetBlue 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
8.1
Very good
5,014 reviews

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

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

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

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

JetBlue
7.5
Good
3,394 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Reviews

1 / 10

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

Frontier
6.1
Okay
3,539 reviews
Southwest
8.1
Very good
5,014 reviews

Crew

8.7

Overall

8.1

Food

7.2

Entertainment

7.7

Comfort

8.1

Boarding

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.

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

    Currently priced at $152, 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 Southwest and JetBlue - these airlines can fly you to your destination from $470 and $610, respectively. Frontier is currently priced 61% below the average price you’ll pay for this route.

  • 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.

  • 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 $254). Flying from Islip, New York to San Juan in March is currently the most expensive (average of $335). 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.

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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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$268FlexibilityNo cancel feeOn-time62%
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