$164+ 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 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Islip to Central America with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Islip to Central America
Cheapest flights from Islip to Central AmericaExplore 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 December 4, 2025.
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 December 4, 2025.
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
This JetBlue deal was found by Cheapflights users on 12/4. 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.
This JetBlue deal was found by Cheapflights users on 12/3. 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.
This Ovago deal was found by Cheapflights users on 12/4. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This KAYAK deal was found by Cheapflights users on 12/2. 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.
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 December 4, 2025.
Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $335 (Kiwi.com) |
One-way from | $164 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $685 |
Cheapflights Fare Finder
Use the filters below to find and compare flights from Islip to Central America that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
IslipGuatemala City
ISP - GUA
ISPGUA
Islip Long Island
Sat 1/17
6:47 pm-12:29 pm
2 stops18h 42m
Guatemala City La Aurora
Sat 1/24
12:15 pm-8:40 am
1 stop19h 25m
IslipSan José
ISP - SJO
ISPSJO
Islip Long Island
Tue 1/20
10:00 am-4:23 pm
1 stop7h 23m
San José Juan Santamaria Intl
Wed 1/28
5:30 pm-8:52 am
1 stop14h 22m
IslipSan José
ISP - SJO
ISPSJO
Islip Long Island
Tue 1/20
10:00 am-4:23 pm
1 stop7h 23m
San José Juan Santamaria Intl
Fri 1/30
5:30 pm-8:52 am
1 stop14h 22m
IslipSan José
ISP - SJO
ISPSJO
Islip Long Island
Tue 1/20
10:00 am-4:23 pm
1 stop7h 23m
San José Juan Santamaria Intl
Sun 1/25
5:30 pm-8:52 am
1 stop14h 22m
IslipSan José
ISP - SJO
ISPSJO
Islip Long Island
Tue 1/20
10:00 am-4:23 pm
1 stop7h 23m
San José Juan Santamaria Intl
Tue 1/27
5:30 pm-8:52 am
1 stop14h 22m
IslipSan José
ISP - SJO
ISPSJO
Islip Long Island
Tue 1/20
10:00 am-4:23 pm
1 stop7h 23m
San José Juan Santamaria Intl
Thu 1/29
5:30 pm-8:52 am
1 stop14h 22m
IslipSan José
ISP - SJO
ISPSJO
Islip Long Island
Tue 1/20
10:00 am-4:23 pm
1 stop7h 23m
San José Juan Santamaria Intl
Mon 1/26
5:30 pm-8:52 am
1 stop14h 22m
IslipSan José
ISP - SJO
ISPSJO
Islip Long Island
Mon 2/2
10:00 am-4:23 pm
1 stop7h 23m
San José Juan Santamaria Intl
Wed 2/4
5:30 pm-8:52 am
1 stop14h 22m
IslipSan Salvador
ISP - SAL
ISPSAL
Islip Long Island
Sat 1/17
12:25 pm-11:05 am
2 stops47h 40m
San Salvador El Salvador Intl
Sat 1/24
1:36 pm-8:40 am
1 stop18h 04m
IslipSan Salvador
ISP - SAL
ISPSAL
Islip Long Island
Fri 1/16
8:54 pm-11:06 am
1 stop15h 12m
San Salvador El Salvador Intl
Fri 1/23
8:45 am-8:52 am
1 stop23h 07m
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.
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 $189). 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.