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Islip

$239+ Cheap flights from Costa Rica 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — ISP
Mar 16 — Mar 231
Mon 3/16
Mon 3/23
1 adult, Economy
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Cheap flight deals from Costa Rica to Islip

Cheapest flights from Costa Rica to Islip
Explore the most affordable flight options available from Costa Rica to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 14, 2026.

This JetBlue deal was found by Cheapflights users on 2/13. 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 3/131:05 pm
SJO
-
ISP
1 stop8h 41m
JetBlue
Fri 3/208:25 pm
ISP
-
SJO
1 stop13h 28m
JetBlue
Deal found 2/13$696
This JetBlue deal was found by Cheapflights users on 2/14. 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.
Tue 3/311:00 pm
SJO
-
ISP
1 stop7h 35m
JetBlue
Sun 4/57:00 am
ISP
-
SJO
1 stop6h 56m
JetBlue
Deal found 2/14$1,368
This JetBlue deal was found by Cheapflights users on 2/11. 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.
Sun 3/2910:10 am
SJO
-
ISP
1 stop11h 52m
JetBlue
Sun 4/57:00 am
ISP
-
SJO
1 stop6h 56m
JetBlue
Deal found 2/11$1,462

Find flight deals from Costa Rica to Islip

Keep the following information in mind while searching for Costa Rica to Islip flight deals. Data was last updated February 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$696
(JetBlue)

One-way from

$239
(JetBlue)

Popular in

April

Cheapest in

October

Average price

$299
Provider with most accurate pricing for San José Juan Santamaria Intl-New York (NYC) flight deals.
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Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-New York (NYC) flights.
Search Deals
From Costa Rica to Islip Long Island
Search Deals
One-way flight from Costa Rica to Islip Long Island
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Costa Rica 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 February 14, 2026.
Use the filters below to find and compare flights from Costa Rica to Islip that are best for you.

Fly from

Costa Rica

Fly to

Islip

Route

Depart

Return

Price

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Fri 3/13

1:05 pm-11:46 pm

1 stop8h 41m

Islip Long Island

Fri 3/20

8:25 pm-7:53 am

1 stop13h 28m

$696

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Tue 3/31

1:00 pm-10:35 pm

1 stop7h 35m

Islip Long Island

Sun 4/5

7:00 am-11:56 am

1 stop6h 56m

$1,368

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Mon 3/30

10:10 am-12:08 am

1 stop11h 58m

Islip Long Island

Mon 4/6

7:00 am-11:56 am

1 stop6h 56m

$1,462

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Sun 3/29

10:10 am-12:02 am

1 stop11h 52m

Islip Long Island

Sun 4/5

7:00 am-11:56 am

1 stop6h 56m

$1,462

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Wed 7/8

12:35 pm-11:17 pm

1 stop8h 42m

$239

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Thu 3/19

8:59 am-11:46 pm

1 stop12h 47m

$329

LiberiaIslip

LIR - ISP

LIRISP

Liberia

Tue 3/31

12:20 pm-10:35 pm

1 stop8h 15m

$359

LiberiaIslip

LIR - ISP

LIRISP

Liberia

Mon 3/30

11:40 am-12:08 am

1 stop10h 28m

$371

San JoséIslip

SJO - ISP

SJOISP

San José Juan Santamaria Intl

Tue 7/7

12:55 pm-10:56 pm

1 stop8h 01m

$386

LiberiaIslip

LIR - ISP

LIRISP

Liberia

Wed 4/1

1:00 pm-10:35 pm

1 stop7h 35m

$475

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/13

Showing 1-10 of 18 results
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Best time to book a flight from Costa Rica to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Costa Rica 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 Costa Rica to Islip

What is the cheapest month to book a flight from Costa Rica to Islip, New York?

Currently, February is the cheapest month in which you can book a flight from Costa Rica to Islip, New York (average of $150). Flying from Costa Rica to Islip, New York in August is currently the most expensive (average of $230). 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 Costa Rica 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 Costa Rica?

    Islip Long Island (ISP) is the airport you will fly into if you book a flight from Costa Rica to Islip. It is only a 7.2 mi journey from Long Island (ISP) to Islip’s city center.

  • How long is the flight from Costa Rica to Islip, New York?

    A quick flight from Costa Rica to Islip, New York can take about 8h 41m. JetBlue provides one of the quickest options available for as low as $696. The distance from Costa Rica to Islip, New York is about 2232 mi.

  • Can I find deals for flights from Costa Rica to Islip that include hotel bookings?

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

  • How can I find direct flights from Costa Rica to Islip?

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

  • Can I find deals for business class flights from Costa Rica to Islip?

    Yes. Cheapflights offers flight deals from Costa Rica 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 Costa Rica to Islip, New York?

    Currently, February is the cheapest month in which you can book a flight from Costa Rica to Islip, New York (average of $150). Flying from Costa Rica to Islip, New York in August is currently the most expensive (average of $230). 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?

Book flights to Islip if you plan to visit one of these locations
Riverhead

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