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$516+ Cheap flights from Barcelona-El Prat (BCN) to Islip (ISP)

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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — ISP
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Barcelona-El Prat to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Barcelona-El Prat (BCN) 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 August 20, 2025.

Round-trip from

$969
(Kiwi.com)

One-way from

$516
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$727
From Barcelona-El Prat to Islip Long Island
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One-way flight from Barcelona-El Prat to Islip Long Island
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Highest demand for flights based on searches. 11% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Barcelona-El Prat to Islip

Cheapest flights from Barcelona-El Prat to Islip
Explore the most affordable flight options available from Barcelona-El Prat to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/47:00 amBCN - ISP
2 stops33h 40mMultiple Airlines
Sat 9/134:33 pmISP - BCN
1 stop13h 42mMultiple Airlines
Deal found 8/17$969

Cheapflights Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat 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 August 20, 2025.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to Islip that are best for you.

Fly from

Barcelona-El Prat

Fly to

Islip

Route

Depart

Return

Price

BarcelonaIslip

BCN - ISP

BCNISP

Barcelona-El Prat

Thu 9/4

7:00 am-10:40 am

2 stops33h 40m

Islip Long Island

Sat 9/13

4:33 pm-12:15 pm

1 stop13h 42m

$969

BarcelonaIslip

BCN - ISP

BCNISP

Barcelona-El Prat

Sun 10/26

2:55 pm-5:42 pm

3 stops55h 47m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Best time to book a flight from Barcelona-El Prat to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Barcelona-El Prat 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 Barcelona-El Prat Airport to Islip

What is the cheapest month to book a flight from Barcelona-El Prat Airport to Islip?

Currently, January is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Islip (average of $108). Flying from Barcelona-El Prat Airport to Islip in November is currently the most expensive (average of $213). 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 Barcelona-El Prat to Islip. 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 into for flights to Islip from Barcelona-El Prat?

    Located just 7.2 mi from the city center, Islip Long Island is the airport most travelers will use when flying to Islip from Barcelona-El Prat. Booking flights from Barcelona-El Prat to Long Island (ISP) should be relatively easy as there are 0 daily inbound flights from Barcelona-El Prat from 0 different airlines.

  • Can I find deals for flights from Barcelona-El Prat to Islip that include hotel bookings?

    Yes. In addition to deals on Barcelona-El Prat to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Barcelona-El Prat to Islip?

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

  • Can I find deals for business class flights from Barcelona-El Prat to Islip?

    Yes. Cheapflights offers flight deals from Barcelona-El Prat 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 Barcelona-El Prat Airport to Islip?

    Currently, January is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Islip (average of $108). Flying from Barcelona-El Prat Airport to Islip in November is currently the most expensive (average of $213). 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
Southampton

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