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Central America

$287+ 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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SJO
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
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 February 19, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/17. 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 4/234:07 pm
ISP
-
GUA
1 stop20h 06m
Multiple Airlines
Thu 4/3011:16 am
GUA
-
ISP
1 stop19h 57m
Multiple Airlines
Deal found 2/17$440
This KAYAK deal was found by Cheapflights users on 2/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/218:25 pm
ISP
-
SJO
1 stop13h 28m
JetBlue
Tue 3/311:00 pm
SJO
-
ISP
1 stop7h 35m
JetBlue
Deal found 2/16$493
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 3/1811:50 am
ISP
-
SJO
2 stops24h 52m
Multiple Airlines
Wed 3/2511:38 am
SJO
-
ISP
1 stop26h 35m
Multiple Airlines
Deal found 2/18$498
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 2/259:33 am
ISP
-
SJO
1 stop27h 07m
Multiple Airlines
Sat 2/2812:35 pm
SJO
-
ISP
1 stop18h 13m
Multiple Airlines
Deal found 2/15$552
This Frontier deal was found by Cheapflights users on 2/16. 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.
Fri 2/207:59 pm
ISP
-
SJO
2 stops18h 16m
Frontier
Sat 2/282:30 pm
SJO
-
ISP
2 stops16h 18m
Frontier
Deal found 2/16$555
This Kiwi.com deal was found by Cheapflights users on 2/18. 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.
Sun 3/224:34 pm
ISP
-
SJO
1 stop20h 08m
Multiple Airlines
Fri 3/2712:19 pm
SJO
-
ISP
2 stops19h 29m
Multiple Airlines
Deal found 2/18$568
This Kiwi.com deal was found by Cheapflights users on 2/16. 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 4/47:30 pm
ISP
-
SAL
2 stops41h 30m
Multiple Airlines
Sun 4/198:45 am
SAL
-
ISP
1 stop22h 28m
Multiple Airlines
Deal found 2/16$573
This Southwest deal was found by Cheapflights users on 2/18. 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.
Wed 3/185:45 am
ISP
-
SJO
2 stops15h 55m
Southwest
Wed 3/258:45 am
SJO
-
ISP
2 stops12h 05m
Southwest
Deal found 2/18$590
This Orbitz deal was found by Cheapflights users on 2/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/261:27 pm
ISP
-
SAP
1 stop24h 13m
JetBlue
Mon 3/21:50 pm
SAP
-
ISP
1 stop19h 12m
JetBlue
Deal found 2/17$593
This Kiwi.com deal was found by Cheapflights users on 2/15. 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 2/263:34 pm
ISP
-
SJO
1 stop21h 06m
Multiple Airlines
Sun 3/112:35 pm
SJO
-
ISP
1 stop18h 03m
Multiple Airlines
Deal found 2/15$595
This Priceline deal was found by Cheapflights users on 2/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:03 am
ISP
-
SJO
1 stop24h 42m
Frontier
Mon 6/2910:00 am
SJO
-
ISP
1 stop21h 08m
Frontier
Deal found 2/16$602
This KAYAK deal was found by Cheapflights users on 2/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/238:25 pm
ISP
-
SJO
1 stop13h 28m
JetBlue
Sun 3/2910:10 am
SJO
-
ISP
1 stop11h 52m
JetBlue
Deal found 2/15$607

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 February 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$440
(Kiwi.com)

One-way from

$287
(KAYAK)

Popular in

December

Cheapest in

October

Average price

$393
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
One-way flight from Islip Long Island to Central America
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($26 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 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 February 19, 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

IslipGuatemala City

ISP - GUA

ISPGUA

Islip Long Island

Thu 4/23

4:07 pm-10:13 am

1 stop20h 06m

Guatemala City La Aurora

Thu 4/30

11:16 am-9:13 am

1 stop19h 57m

$440

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Mon 3/23

8:25 pm-7:53 am

1 stop13h 28m

San José Juan Santamaria Intl

Tue 3/31

1:00 pm-10:35 pm

1 stop7h 35m

$493

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Sat 3/21

8:25 pm-7:53 am

1 stop13h 28m

San José Juan Santamaria Intl

Tue 3/31

1:00 pm-10:35 pm

1 stop7h 35m

$493

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Wed 3/18

11:50 am-10:42 am

2 stops24h 52m

San José Juan Santamaria Intl

Wed 3/25

11:38 am-4:13 pm

1 stop26h 35m

$498

IslipSan Salvador

ISP - SAL

ISPSAL

Islip Long Island

Sat 4/4

7:30 pm-11:00 am

2 stops41h 30m

San Salvador El Salvador Intl

Sun 4/19

8:45 am-9:13 am

1 stop22h 28m

$573

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Wed 3/18

5:45 am-7:40 pm

2 stops15h 55m

San José Juan Santamaria Intl

Wed 3/25

8:45 am-10:50 pm

2 stops12h 05m

$590

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Mon 3/23

8:25 pm-7:53 am

1 stop13h 28m

San José Juan Santamaria Intl

Sun 3/29

10:10 am-12:02 am

1 stop11h 52m

$607

IslipGuatemala City

ISP - GUA

ISPGUA

Islip Long Island

Thu 4/2

5:30 am-5:23 pm

2 stops13h 53m

Guatemala City La Aurora

Mon 4/6

12:37 pm-11:14 pm

1 stop8h 37m

$623

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Wed 6/3

6:55 am-12:10 pm

1 stop7h 15m

San José Juan Santamaria Intl

Mon 6/29

8:45 am-11:35 pm

2 stops12h 50m

$635

IslipSan José

ISP - SJO

ISPSJO

Islip Long Island

Sun 3/22

8:25 pm-7:53 am

1 stop13h 28m

San José Juan Santamaria Intl

Tue 3/24

8:59 am-7:27 pm

1 stop8h 28m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Showing 1-10 of 44 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 $67). 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 13h 28m. 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 - 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 $67). 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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