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$669+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — MAD
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
1 adult, Economy
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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 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$669
(Vliegwinkel)

Popular in

June

Cheapest in

January

Average price

$378
Provider with most accurate pricing for New York (NYC)-Barcelona flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-Barcelona flights.
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From Islip Long Island to Spain
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Highest demand for flights based on searches. 18% potential increase in price ($128 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Islip to Spain

Cheapest flights from Islip to Spain
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 19, 2026.

This Vliegwinkel deal was found by Cheapflights users on 1/17. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/39:39 am
ISP
-
BCN
2 stops17h 21m
Multiple Airlines
Tue 3/106:40 am
BCN
-
ISP
2 stops31h 07m
Multiple Airlines
Deal found 1/17$669
This Kiwi.com deal was found by Cheapflights users on 1/17. 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 2/123:34 pm
ISP
-
MAD
1 stop34h 41m
Multiple Airlines
Fri 2/279:30 am
MAD
-
ISP
2 stops31h 36m
Multiple Airlines
Deal found 1/17$1,112
This Kiwi.com deal was found by Cheapflights users on 1/18. 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.
Sat 2/218:23 pm
ISP
-
MAD
1 stop29h 52m
Multiple Airlines
Sat 2/282:30 pm
MAD
-
ISP
2 stops47h 08m
Multiple Airlines
Deal found 1/18$1,228
This Kiwi.com deal was found by Cheapflights users on 1/18. 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 2/158:01 pm
ISP
-
MAD
2 stops37h 04m
Multiple Airlines
Sun 2/2211:30 am
MAD
-
ISP
1 stop26h 08m
Multiple Airlines
Deal found 1/18$1,641
This Expedia deal was found by Cheapflights users on 1/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/181:51 pm
ISP
-
MAD
2 stops26h 09m
Multiple Airlines
Tue 6/234:00 pm
MAD
-
ISP
2 stops50h 56m
Multiple Airlines
Deal found 1/18$1,746
This lastminute.com deal was found by Cheapflights users on 1/18. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:39 am
ISP
-
TFS
2 stops28h 06m
Multiple Airlines
Thu 3/127:35 pm
TFS
-
ISP
2 stops27h 09m
Multiple Airlines
Deal found 1/18$5,058

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 19, 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

Tue 3/3

9:59 am-11:55 am

1 stop19h 56m

Barcelona-El Prat

Tue 3/10

6:10 pm-4:13 pm

2 stops51h 03m

$830

IslipMadrid

ISP - MAD

ISPMAD

Islip Long Island

Thu 2/12

3:34 pm-8:15 am

1 stop34h 41m

Madrid Barajas

Fri 2/27

9:30 am-11:06 am

2 stops31h 36m

$1,112

IslipMadrid

ISP - MAD

ISPMAD

Islip Long Island

Sat 2/21

8:23 pm-8:15 am

1 stop29h 52m

Madrid Barajas

Sat 2/28

2:30 pm-7:38 am

2 stops47h 08m

$1,228

IslipMadrid

ISP - MAD

ISPMAD

Islip Long Island

Thu 6/18

1:51 pm-10:00 pm

2 stops26h 09m

Madrid Barajas

Tue 6/23

4:00 pm-12:56 pm

2 stops50h 56m

$1,746

IslipMadrid

ISP - MAD

ISPMAD

Islip Long Island

Sun 2/15

9:59 am-5:45 am

1 stop13h 46m

Madrid Barajas

Sun 2/22

11:30 am-7:38 am

1 stop26h 08m

$1,953

IslipGranadilla

ISP - TFS

ISPTFS

Islip Long Island

Thu 3/5

9:39 am-6:45 pm

2 stops28h 06m

Granadilla Tenerife-Sur

Thu 3/12

7:35 pm-6:44 pm

2 stops27h 09m

$5,058

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/17

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.

Related info for your journey

Find useful and relevant information for your journey from Islip to Spain. 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 Spain?

    Islip Long Island (ISP), located 7.2 mi from the city center, is the airport you fly out of when you book flights from Islip to Spain.

  • What are the most popular routes from Islip, New York to Spain?

    Most travelers choose Islip Long Island - Madrid Barajas, Islip Long Island - Barcelona-El Prat or Islip Long Island - Malaga when deciding on the best route from Islip, New York to Spain.

  • Can I find deals for flights from Islip to Spain that include hotel bookings?

    Yes. In addition to deals on Islip to Spain flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to Spain?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to Spain.

  • Can I find deals for business class flights from Islip to Spain?

    Yes. Cheapflights offers flight deals from Islip to Spain 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 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.

See more FAQs

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