$941+ Cheap flights from Islip, NY (ISP) to South 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Islip to South 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 South America
Keep the following information in mind while searching for Islip to South America flight deals. Data was last updated June 12, 2025.
Round-trip from | $941 (Mytrip) |
|---|---|
Popular in | December |
Cheapest in | March |
Average price | $883 |
Find flight deals from Islip to South America
Cheapest flights from Islip to South AmericaExplore the most affordable flight options available from Islip to South America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Islip to South America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to South 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 June 12, 2025.
Use the filters below to find and compare flights from Islip to South America that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
IslipCartagena
ISP - CTG
ISPCTG
Islip Long Island
Sun 7/27
7:39 pm-4:30 pm
3 stops21h 51m
Cartagena Rafael Nunez
Sun 8/3
1:28 pm-10:04 am
3 stops19h 36m
IslipQuito
ISP - UIO
ISPUIO
Islip Long Island
Sun 7/27
7:39 pm-2:45 am
3 stops32h 06m
Quito Mariscal Sucr
Sun 8/3
4:20 am-3:19 pm
3 stops33h 59m
IslipBuenos Aires
ISP - EZE
ISPEZE
Islip Long Island
Fri 7/25
8:37 pm-1:25 am
2 stops27h 48m
Buenos Aires Ministro Pistarini
Thu 7/31
1:40 am-7:42 pm
2 stops19h 02m
Best time to book a flight from Islip to South America
Have a flexible travel schedule? Discover the best time to fly to South America from Islip with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Islip to South America
What is the cheapest month to book a flight from Islip, New York to South America?
Currently, May is the cheapest month in which you can book a flight from Islip, New York to South America (average of $359). Flying from Islip, New York to South America in December is currently the most expensive (average of $664). 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.
Rainfall in South America by month
Plan your trip to South America by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in South America ranges from 0.8 - 9.4 inches per month. January is typically the wettest month, when rainfall can reach 9.4 in. July is typically the driest time to visit South America when rainfall is around 0.8 in.
Temperature in South America by month
Plan your trip to South America by taking into account the average temperature totals by month.
If weather is an important factor for your trip to South America, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 62.6 F).