$3,431+ Cheap flights from Islip, NY (ISP) to Spain
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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — MAD
Feb 6 — Feb 131
1 adult, Economy
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Find cheap flights from Islip to Spain 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 Spain
Keep the following information in mind while searching for Islip to Spain flight deals. Data was last updated January 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 1 star |
Round-trip from | $3,431 (Expedia) |
Popular in | June |
Cheapest in | January |
Average price | $369 |
Find flight deals from Islip to Spain
Cheapest flights from Islip to SpainExplore the most affordable flight options available from Islip to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 7, 2026.
Explore the most affordable flight options available from Islip to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 7, 2026.
This Expedia deal was found by Cheapflights users on 1/6. 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.
Fri 2/209:29 amISP - BCN
2 stops21h 51mMultiple Airlines
Fri 2/279:05 pmBCN - ISP
2 stops41h 42mMultiple Airlines
Deal found 1/6![Multiple Airlines logo]()
$3,431
This Expedia deal was found by Cheapflights users on 1/7. 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 2/162:41 pmISP - BCN
2 stops16h 39mMultiple Airlines
Tue 2/176:35 pmBCN - ISP
2 stops44h 04mMultiple Airlines
Deal found 1/7![Multiple Airlines logo]()
$5,704
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Spain 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 January 7, 2026.
Use the filters below to find and compare flights from Islip to Spain that are best for you.
Fly from
Islip
Fly to
Spain
Route
Depart
Return
Price
IslipBarcelona
ISP - BCN
ISPBCN
Islip Long Island
Fri 2/20
9:29 am-1:20 pm
2 stops21h 51m
Barcelona-El Prat
Fri 2/27
9:05 pm-8:47 am
2 stops41h 42m
$3,431
IslipBarcelona
ISP - BCN
ISPBCN
Islip Long Island
Mon 2/16
2:41 pm-1:20 pm
2 stops16h 39m
Barcelona-El Prat
Tue 2/17
6:35 pm-8:39 am
2 stops44h 04m
$5,704
Best time to book a flight from Islip to Spain
Have a flexible travel schedule? Discover the best time to fly to Spain 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 Spain
What is the cheapest month to book a flight from Islip, New York to Spain?
Currently, January is the cheapest month in which you can book a flight from Islip, New York to Spain (average of $285). Flying from Islip, New York to Spain in June is currently the most expensive (average of $438). 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.