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Central America

$300+ Cheap flights from Islip, NY (ISP) to Central America

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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SJO
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
1 adult, Economy
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Find flight deals from Islip to Central America

Cheapest flights from Islip to Central America
Explore the most affordable flight options available from Islip to Central America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Thu 12/410:19 amISP - GUA
1 stop26h 04mMultiple Airlines
Thu 12/111:29 pmGUA - ISP
2 stops29h 38mMultiple Airlines
Deal found 10/21$399
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Mon 10/274:58 pmISP - SJO
2 stops20h 32mMultiple Airlines
Wed 11/512:34 pmSJO - ISP
1 stop28h 08mMultiple Airlines
Deal found 10/21$431
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Fri 12/52:25 pmISP - GUA
2 stops24h 40mMultiple Airlines
Fri 12/123:00 pmGUA - ISP
1 stop17h 13mMultiple Airlines
Deal found 10/21$433
This Expedia deal was found by Cheapflights users on 10/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:57 pmISP - SJO
1 stop24h 09mJetBlue
Wed 11/52:01 pmSJO - ISP
1 stop24h 39mJetBlue
Deal found 10/21$471
This Frontier deal was found by Cheapflights users on 10/21. 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 11/238:25 pmISP - SAL
2 stops17h 49mFrontier
Fri 12/52:23 pmSAL - ISP
2 stops17h 50mFrontier
Deal found 10/21$718
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/177:30 amISP - SAL
1 stop13h 45mMultiple Airlines
Mon 11/2410:05 pmSAL - ISP
2 stops35h 13mMultiple Airlines
Deal found 10/20$789
This Frontier deal was found by Cheapflights users on 10/21. 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 11/238:25 pmISP - SAL
2 stops17h 49mFrontier
Fri 11/282:24 pmSAL - ISP
2 stops16h 38mFrontier
Deal found 10/21$855
This Frontier deal was found by Cheapflights users on 10/21. 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 11/238:25 pmISP - SAL
2 stops17h 49mFrontier
Wed 11/262:24 pmSAL - ISP
2 stops17h 43mFrontier
Deal found 10/21$858
This Frontier deal was found by Cheapflights users on 10/21. 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.
Tue 11/259:09 pmISP - SAL
2 stops17h 05mFrontier
Fri 12/52:23 pmSAL - ISP
2 stops17h 50mFrontier
Deal found 10/21$928
This JetBlue deal was found by Cheapflights users on 10/20. 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.
Tue 12/307:40 pmISP - SJO
1 stop14h 13mJetBlue
Tue 1/65:30 pmSJO - ISP
1 stop14h 25mJetBlue
Deal found 10/20$970
This Frontier deal was found by Cheapflights users on 10/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/218:35 pmISP - SAL
2 stops16h 21mFrontier
Sat 12/279:11 amSAL - ISP
1 stop9h 56mFrontier
Deal found 10/20$990
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/228:47 amISP - SAL
2 stops46h 43mMultiple Airlines
Sun 11/307:45 amSAL - ISP
1 stop26h 19mMultiple Airlines
Deal found 10/20$1,003

Cheap flight deals from Islip to Central America

Keep the following information in mind while searching for Islip to Central America flight deals. Data was last updated October 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$336
(JetBlue)

One-way from

$300
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$315
Provider with most accurate pricing for New York (NYC)-San Salvador El Salvador Intl flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-San Salvador El Salvador Intl flights.
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From Islip Long Island to Central America
Search Deals
One-way flight from Islip Long Island to Central America
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($103 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Central America 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 22, 2025.
Use the filters below to find and compare flights from Islip to Central America that are best for you.

Fly from

Islip

Fly to

Central America

Route

Depart

Return

Price

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Fri 2/6

9:40 am-4:24 pm

1 stop7h 44m

San José Juan Santamaria Intl

Tue 2/10

5:30 pm-8:55 am

1 stop14h 25m

$336

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Fri 2/6

9:40 am-4:24 pm

1 stop7h 44m

San José Juan Santamaria Intl

Mon 2/9

5:30 pm-8:55 am

1 stop14h 25m

$385

IslipGuatemala City

ISP - GUA

ISPGUA

Islip Long Island

Thu 12/4

10:19 am-2:05 pm

1 stop28h 46m

Guatemala City La Aurora

Thu 12/11

1:29 pm-8:07 pm

2 stops29h 38m

$418

IslipGuatemala City

ISP - GUA

ISPGUA

Islip Long Island

Fri 12/5

2:25 pm-2:05 pm

2 stops24h 40m

Guatemala City La Aurora

Fri 12/12

3:00 pm-9:13 am

1 stop17h 13m

$433

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Thu 2/5

9:40 am-4:24 pm

1 stop7h 44m

San José Juan Santamaria Intl

Tue 2/10

5:30 pm-8:55 am

1 stop14h 25m

$535

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Sat 2/21

12:10 pm-12:55 pm

1 stop25h 45m

San José Juan Santamaria Intl

Sat 2/28

1:55 pm-10:00 am

1 stop19h 05m

$543

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Thu 2/5

9:40 am-4:24 pm

1 stop7h 44m

San José Juan Santamaria Intl

Mon 2/9

5:30 pm-8:55 am

1 stop14h 25m

$584

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

Sun 11/23

8:25 pm-1:14 pm

2 stops17h 49m

San Salvador El Salvador Intl

Fri 12/5

2:23 pm-9:13 am

2 stops17h 50m

$718

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

Mon 11/17

7:30 am-8:15 pm

1 stop13h 45m

San Salvador El Salvador Intl

Mon 11/24

10:05 pm-10:18 am

2 stops35h 13m

$789

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

Sun 11/23

8:25 pm-1:14 pm

2 stops17h 49m

San Salvador El Salvador Intl

Fri 11/28

2:24 pm-8:02 am

2 stops16h 38m

$855

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 24 results
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Best time to book a flight from Islip to Central America

Have a flexible travel schedule? Discover the best time to fly to Central America 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.

Cheapflights Insights

Everything you need to know about your flight from Islip to Central America

What is the cheapest month to book a flight from Islip, New York to Central America?

Currently, July is the cheapest month in which you can book a flight from Islip, New York to Central America (average of $68). Flying from Islip, New York to Central America in December is currently the most expensive (average of $191). 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 Islip to Central America. 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 Central America?

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

  • How long is the flight from Islip, New York to Central America?

    Departing from Islip, New York to Central America will take you 7h 44m. The distance from Islip, New York to Central America is about 2232 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Islip, New York to Central America?

    The most popular route from Islip, New York to Central America is Islip Long Island - San José Juan Santamaria Intl. You may also consider Islip Long Island - Guatemala City La Aurora or Islip Long Island - San Salvador El Salvador Intl.

  • Can I find deals for flights from Islip to Central America that include hotel bookings?

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

  • How can I find direct flights from Islip to Central America?

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

  • Can I find deals for business class flights from Islip to Central America?

    Yes. Cheapflights offers flight deals from Islip to Central America 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 Central America?

    Currently, July is the cheapest month in which you can book a flight from Islip, New York to Central America (average of $68). Flying from Islip, New York to Central America in December is currently the most expensive (average of $191). 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

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Alternative routes for Islip to Central America

See prices for flight routes from nearby airports that may be better suited for you.
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