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Islip

$235+ Cheap flights from San José (SJO) 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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — ISP
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from San José to Islip

Discover tips and strategies to find the most affordable flight options for your journey from San José (SJO) 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$333
(Kiwi.com)

One-way from

$235
(JetBlue)

Popular in

April

Cheapest in

September

Average price

$307
Provider with most accurate pricing for San José Juan Santamaria Intl-Islip Long Island flight deals.
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Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-Islip Long Island flights.
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From San José Juan Santamaria Intl to Islip Long Island
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One-way flight from San José Juan Santamaria Intl to Islip Long Island
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Highest demand for flights based on searches. 2% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from San José to Islip

Cheapest flights from San José to Islip
Explore the most affordable flight options available from San José to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2511:24 amSJO - ISP
1 stop7h 50mMultiple Airlines
Mon 12/19:02 amISP - SJO
1 stop26h 17mMultiple Airlines
Deal found 10/28$333
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2611:24 amSJO - ISP
1 stop20h 43mMultiple Airlines
Mon 12/19:02 amISP - SJO
1 stop26h 17mMultiple Airlines
Deal found 10/28$386
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2511:24 amSJO - ISP
1 stop7h 50mMultiple Airlines
Sun 11/308:25 pmISP - SJO
1 stop14h 54mMultiple Airlines
Deal found 10/28$403
This JetBlue deal was found by Cheapflights users on 10/28. 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.
Thu 12/2510:00 amSJO - ISP
1 stop7h 45mJetBlue
Wed 12/317:40 pmISP - SJO
1 stop14h 13mJetBlue
Deal found 10/28$439
This SmartFares deal was found by Cheapflights users on 10/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:38 amSJO - ISP
1 stop23h 23mJetBlue
Thu 1/17:40 pmISP - SJO
1 stop14h 13mJetBlue
Deal found 10/29$496
This Southwest deal was found by Cheapflights users on 10/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/259:00 amSJO - ISP
2 stops13h 55mSouthwest
Mon 12/15:40 amISP - SJO
2 stops15h 50mSouthwest
Deal found 10/28$620
This JetBlue deal was found by Cheapflights users on 10/28. 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 12/1910:00 amSJO - ISP
1 stop7h 45mJetBlue
Sun 12/287:40 pmISP - SJO
1 stop14h 13mJetBlue
Deal found 10/28$640

Cheapflights Fare Finder

 
Customize your flight search to find flights from San José 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 October 30, 2025.
Use the filters below to find and compare flights from San José to Islip that are best for you.

Fly from

San José

Fly to

Islip

Route

Depart

Return

Price

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Tue 11/25

11:24 am-8:14 pm

1 stop7h 50m

Islip Long Island

Mon 12/1

9:02 am-10:19 am

1 stop26h 17m

$333

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Mon 1/12

5:30 pm-8:55 am

1 stop14h 25m

Islip Long Island

Tue 1/27

9:40 am-4:24 pm

1 stop7h 44m

$374

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Thu 12/25

10:00 am-6:45 pm

1 stop7h 45m

Islip Long Island

Wed 12/31

7:40 pm-8:53 am

1 stop14h 13m

$439

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Wed 11/26

11:24 am-9:07 am

1 stop20h 43m

Islip Long Island

Mon 12/1

9:02 am-12:15 pm

2 stops28h 13m

$440

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Tue 12/30

9:38 am-10:01 am

1 stop23h 23m

Islip Long Island

Thu 1/1

7:40 pm-8:53 am

1 stop14h 13m

$496

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Tue 11/25

9:00 am-11:55 pm

2 stops13h 55m

Islip Long Island

Mon 12/1

5:40 am-8:30 pm

2 stops15h 50m

$620

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Wed 11/26

9:00 am-11:55 pm

2 stops13h 55m

Islip Long Island

Mon 12/1

5:40 am-8:30 pm

2 stops15h 50m

$620

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Fri 12/19

10:00 am-6:45 pm

1 stop7h 45m

Islip Long Island

Sun 12/28

7:40 pm-8:53 am

1 stop14h 13m

$640

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Mon 12/29

10:00 am-6:45 pm

1 stop7h 45m

Islip Long Island

Fri 1/2

7:40 pm-8:53 am

1 stop14h 13m

$672

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Mon 11/24

1:45 am-8:14 pm

2 stops17h 29m

Islip Long Island

Sun 11/30

8:25 pm-11:40 pm

2 stops28h 15m

$712

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 13 results
1
2

Compare providers for flights from San José to Islip

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San José to Islip in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San José-Islip, New York flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San José-Islip, New York flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San José-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San José-Islip, New York flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San José-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San José to Islip

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

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

Currently, September is the cheapest month in which you can book a flight from San José to Islip, New York (average of $163). Flying from San José to Islip, New York in August is currently the most expensive (average of $233). 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 San José to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San José to Islip, New York?

    For as low as $374, JetBlue can have you in Islip, New York from San José in 14h 25m. San José and Islip, New York are separated by a distance of 2232 mi.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from San José to Islip, New York (average of $163). Flying from San José to Islip, New York in August is currently the most expensive (average of $233). 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 Islip?

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