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Islip

$147+ Cheap flights from San Juan 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — ISP
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from San Juan to Islip

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Islip (ISP). 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 April 29, 2025.

Round-trip from

$294
(Cheapflightsfares)

One-way from

$147
(Cheapflightsfares)

Popular in

July

Cheapest in

February

Average price

$258
From San Juan to Islip Long Island
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One-way flight from San Juan to Islip Long Island
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Highest demand for flights based on searches. 12% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from San Juan to Islip

Cheapest flights from San Juan to Islip
Explore the most affordable flight options available from San Juan to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 5/93:56 amSJU - ISP
1 stop6h 45mFrontier
Sat 5/177:15 pmISP - SJU
1 stop7h 36mFrontier
Deal found 4/29$294
This JetBlue deal was found by Cheapflights users on 4/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/205:01 amSJU - ISP
1 stop7h 25mJetBlue
Sun 6/292:39 pmISP - SJU
1 stop8h 20mJetBlue
Deal found 4/28$530

Cheapflights Fare Finder

Customize your flight search to find flights from San Juan 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 April 29, 2025.
Use the filters below to find and compare flights from San Juan to Islip that are best for you.

Fly from

San Juan

Fly to

Islip

Route

Depart

Return

Price

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Fri 5/9

3:56 am-10:41 am

1 stop6h 45m

Islip Long Island

Sat 5/17

7:15 pm-2:51 am

1 stop7h 36m

$294

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Fri 6/20

5:01 am-12:26 pm

1 stop7h 25m

Islip Long Island

Sun 6/29

2:39 pm-10:59 pm

1 stop8h 20m

$530

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Fri 5/9

3:56 am-10:41 am

1 stop6h 45m

$147

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Wed 9/17

9:30 am-4:52 pm

1 stop7h 22m

$213

San JuanIslip

SJU - ISP

SJUISP

San Juan Luis Munoz Marin Intl

Wed 6/18

5:30 am-2:05 pm

2 stops8h 35m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Best time to book a flight from San Juan to Islip

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

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

Currently, January is the cheapest month in which you can book a flight from San Juan to Islip, New York (average of $108). Flying from San Juan to Islip, New York in November is currently the most expensive (average of $213). 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.

Rainfall in Islip by month

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

In terms of precipitation, rainfall in Islip, New York ranges from 3.3 - 4.4 inches per month. March is typically the wettest month, when rainfall can reach 4.4 in. February is typically the driest time to visit Islip, New York when rainfall is around 3.3 in.

Temperature in Islip by month

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

If weather is an important factor for your trip to Islip, New York, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated April 29, 2025.
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.6

Comfort

8.0

Food

7.1

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.6

Comfort

8.0

Food

7.1

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,922 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.6

Comfort

8.0

Food

7.1

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Frontier
6.0
Okay
3,287 reviews
Southwest
8.0
Very good
4,295 reviews

Entertainment

7.6

Comfort

8.0

Food

7.1

Boarding

8.2

Overall

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

Related info for your journey

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

    For a flight from San Juan to Islip, you will be flying into Long Island. Islip Long Island (ISP) is just 7.2 mi from the center of the city. Long Island is the only Islip airport and it handles 0 inbound flights from San Juan per day. 0 airlines have flights to Islip Long Island from San Juan on a regular basis.

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

    The cheapest airlines for a one-way flight from San Juan to Islip, New York are Frontier ($147), JetBlue ($213), and Southwest ($246).

  • Can I find deals for flights from San Juan to Islip that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from San Juan 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 San Juan to Islip, New York?

    Currently, January is the cheapest month in which you can book a flight from San Juan to Islip, New York (average of $108). Flying from San Juan to Islip, New York in November is currently the most expensive (average of $213). 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

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Southampton
Riverhead

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