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Barcelona-El Prat

$1,772+ Cheap flights from Islip, NY (ISP) to Barcelona-El Prat (BCN)

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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — BCN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Islip to Barcelona-El Prat

Best flights from Islip to Barcelona-El Prat
Discover carefully curated flight deals from Islip to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/79:40 amISP - BCN
2 stops28h 45mMultiple Airlines
Fri 2/139:05 pmBCN - ISP
2 stops41h 35mMultiple Airlines
Deal found 12/10$1,772

Find flight deals from Islip to Barcelona-El Prat

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Barcelona-El Prat (BCN). 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,772
(Expedia)

Popular in

June

Cheapest in

January

Average price

$719
Provider with most accurate pricing for Islip Long Island-Barcelona-El Prat flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Barcelona-El Prat flights.
Search Deals
From Islip Long Island to Barcelona-El Prat
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Barcelona-El Prat 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 December 12, 2025.
Use the filters below to find and compare flights from Islip to Barcelona-El Prat Airport that are best for you.

Fly from

Islip

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

IslipBarcelona

ISP - BCN

ISPBCN

Islip Long Island

Sat 2/7

9:40 am-8:25 pm

2 stops28h 45m

Barcelona-El Prat

Fri 2/13

9:05 pm-8:40 am

2 stops41h 35m

$1,772

IslipBarcelona

ISP - BCN

ISPBCN

Islip Long Island

Sun 12/21

10:46 am-1:20 pm

2 stops20h 34m

$3,643

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from Islip to Barcelona-El Prat

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to Barcelona-El Prat in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Islip, New York-Barcelona-El Prat Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Islip, New York-Barcelona-El Prat Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Islip, New York-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Barcelona-El Prat Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-Barcelona-El Prat Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Barcelona-El Prat Airport (average of $285). Flying from Islip, New York to Barcelona-El Prat Airport in April is currently the most expensive (average of $440). 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 Barcelona-El Prat. 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 Barcelona-El Prat?

    For a flight from Islip to Barcelona-El Prat, you will be flying from Long Island. Islip Long Island (ISP) is just 7.2 mi from the center of the city. Long Island is the only Islip airport and it handles 0 outbound flights to Barcelona-El Prat per day. 0 airlines have flights to Barcelona-El Prat from Islip Long Island on a regular basis.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to Barcelona-El Prat Airport (average of $285). Flying from Islip, New York to Barcelona-El Prat Airport in April is currently the most expensive (average of $440). 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 Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Calella
Roses
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar

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