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Islip

$5,143+ Cheap flights from Madrid, Spain (MAD) to Islip, NY (ISP)

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — ISP
feb. 13 — feb. 201
vie. 2/13
vie. 2/20
1 adult, Economy
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Cheap flight deals from Madrid to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Madrid (MAD) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated enero 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$5,143
(KAYAK)

Popular in

August

Cheapest in

February

Average price

$506
Provider with most accurate pricing for Madrid Barajas-New York (NYC) flight deals.
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Provider most trusted by Cheapflights users for Madrid Barajas-New York (NYC) flights.
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From Madrid Barajas to Islip Long Island
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Highest demand for flights based on searches. 10% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 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 Madrid to Islip

Cheapest flights from Madrid to Islip
Explore the most affordable flight options available from Madrid to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 14, 2026.

This KAYAK deal was found by Cheapflights users on 1/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/89:00 pm
MAD
-
ISP
2 stops27h 44m
Multiple Airlines
jue. 4/3012:30 pm
ISP
-
MAD
2 stops15h 25m
Multiple Airlines
Deal found 1/12$5,143

Cheapflights Fare Finder

 
Customize your flight search to find flights from Madrid to Islip 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 enero 14, 2026.
Use the filters below to find and compare flights from Madrid to Islip that are best for you.

Fly from

Madrid

Fly to

Islip

Route

Depart

Return

Price

MadridIslip

MAD - ISP

MADISP

Madrid Barajas

mié. 4/8

9:00 pm-6:44 pm

2 stops27h 44m

Islip Long Island

jue. 4/30

12:30 pm-9:55 am

2 stops15h 25m

$5,143

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Best time to book a flight from Madrid to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Madrid 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 Madrid to Islip

What is the cheapest month to book a flight from Madrid to Islip, New York?

Currently, September is the cheapest month in which you can book a flight from Madrid to Islip, New York (average of $303). Flying from Madrid to Islip, New York in July is currently the most expensive (average of $538). 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 Madrid to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Madrid to Islip 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 Madrid to Islip, New York?

    Currently, September is the cheapest month in which you can book a flight from Madrid to Islip, New York (average of $303). Flying from Madrid to Islip, New York in July is currently the most expensive (average of $538). 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

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead

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