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Central America

$449+ Cheap flights from Islip, NY (ISP) to Central America

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SJO
feb. 20 — feb. 271
vie. 2/20
vie. 2/27
1 adult, Economy
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Cheap 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 enero 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
mié. 3/2511:50 am
ISP
-
SJO
2 stops25h 29m
Multiple Airlines
jue. 4/211:38 am
SJO
-
ISP
1 stop10h 17m
Multiple Airlines
Deal found 1/21$449
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
jue. 3/265:08 pm
ISP
-
SJO
1 stop19h 34m
Multiple Airlines
jue. 4/211:38 am
SJO
-
ISP
1 stop10h 17m
Multiple Airlines
Deal found 1/21$467
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
lun. 3/302:31 pm
ISP
-
SJO
2 stops22h 11m
Multiple Airlines
jue. 4/211:38 am
SJO
-
ISP
1 stop10h 17m
Multiple Airlines
Deal found 1/21$480
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
sáb. 3/2811:50 am
ISP
-
SJO
2 stops24h 52m
Multiple Airlines
vie. 4/311:38 am
SJO
-
ISP
1 stop9h 36m
Multiple Airlines
Deal found 1/21$483
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
lun. 3/301:22 pm
ISP
-
SJO
1 stop23h 20m
Multiple Airlines
vie. 4/311:38 am
SJO
-
ISP
1 stop9h 36m
Multiple Airlines
Deal found 1/21$484
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
dom. 3/295:08 pm
ISP
-
SJO
2 stops27h 42m
Multiple Airlines
jue. 4/211:38 am
SJO
-
ISP
1 stop10h 17m
Multiple Airlines
Deal found 1/21$485
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
dom. 3/295:08 pm
ISP
-
SJO
1 stop19h 34m
Multiple Airlines
vie. 4/311:38 am
SJO
-
ISP
1 stop9h 36m
Multiple Airlines
Deal found 1/21$486
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
vie. 3/271:42 pm
ISP
-
SJO
1 stop23h 00m
Multiple Airlines
jue. 4/211:38 am
SJO
-
ISP
1 stop10h 17m
Multiple Airlines
Deal found 1/21$490
This JetBlue deal was found by Cheapflights users on 1/21. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/288:22 pm
ISP
-
SJO
1 stop14h 30m
JetBlue
dom. 3/291:05 pm
SJO
-
ISP
1 stop8h 57m
JetBlue
Deal found 1/21$501
This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
vie. 3/271:42 pm
ISP
-
SJO
1 stop23h 00m
Multiple Airlines
vie. 4/312:24 pm
SJO
-
ISP
2 stops33h 18m
Multiple Airlines
Deal found 1/21$512
This JetBlue deal was found by Cheapflights users on 1/20. 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.
sáb. 3/148:25 pm
ISP
-
SJO
1 stop13h 28m
JetBlue
sáb. 3/218:59 am
SJO
-
ISP
1 stop12h 48m
JetBlue
Deal found 1/20$513
This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
vie. 3/61:42 pm
ISP
-
GUA
1 stop22h 38m
Multiple Airlines
jue. 3/1212:59 am
GUA
-
ISP
2 stops32h 11m
Multiple Airlines
Deal found 1/20$560

Find 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 enero 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$449
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$401
Provider with most accurate pricing for New York (NYC)-San Salvador El Salvador Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-San Salvador El Salvador Intl flights.
Search Deals
From Islip Long Island to Central America
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 21, 2026.
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

jue. 3/26

5:08 pm-10:42 am

1 stop19h 34m

San José Juan Santamaria Intl

vie. 4/3

11:38 am-11:14 pm

1 stop9h 36m

$467

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

lun. 3/30

2:31 pm-10:42 am

2 stops22h 11m

San José Juan Santamaria Intl

vie. 4/3

11:38 am-11:14 pm

1 stop9h 36m

$480

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

lun. 3/30

1:22 pm-10:42 am

1 stop23h 20m

San José Juan Santamaria Intl

jue. 4/2

11:38 am-11:55 pm

1 stop10h 17m

$484

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

vie. 3/27

1:42 pm-10:42 am

1 stop23h 00m

San José Juan Santamaria Intl

vie. 4/3

11:38 am-11:14 pm

1 stop9h 36m

$490

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

jue. 3/26

5:08 pm-11:19 am

2 stops20h 11m

San José Juan Santamaria Intl

jue. 4/2

11:38 am-11:55 pm

1 stop10h 17m

$496

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

sáb. 3/28

8:22 pm-8:52 am

1 stop14h 30m

San José Juan Santamaria Intl

dom. 3/29

1:05 pm-12:02 am

1 stop8h 57m

$501

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

sáb. 3/14

8:25 pm-7:53 am

1 stop13h 28m

San José Juan Santamaria Intl

sáb. 3/21

8:59 am-11:47 pm

1 stop12h 48m

$513

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

vie. 3/27

8:22 pm-7:53 am

1 stop13h 31m

San José Juan Santamaria Intl

mar. 3/31

1:38 pm-9:09 am

1 stop17h 31m

$543

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

jue. 3/26

8:22 pm-7:53 am

1 stop13h 31m

San José Juan Santamaria Intl

dom. 3/29

1:05 pm-12:02 am

1 stop8h 57m

$546

IslipGuatemala City

ISP - GUA

ISPGUA

Islip Long Island

vie. 3/6

1:42 pm-11:20 am

1 stop22h 38m

Guatemala City La Aurora

jue. 3/12

12:59 am-11:10 am

2 stops32h 11m

$560

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 18 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 $161). 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 24h 31m. The distance from Islip, New York to Central America is about 2091 mi.

  • 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 - San Salvador El Salvador Intl or Islip Long Island - Liberia.

  • 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 $161). 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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