HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona

$795+ Cheap flights from Islip, NY (ISP) to Barcelona

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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — BCN
ene. 3 — ene. 101
sáb. 1/3
sáb. 1/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Islip to Barcelona 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 Barcelona

Best flights from Islip to Barcelona
Discover carefully curated flight deals from Islip to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/4. 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.
dom. 1/189:52 amISP - BCN
2 stops44h 03mMultiple Airlines
dom. 1/256:10 pmBCN - ISP
1 stop22h 55mMultiple Airlines
Deal found 12/4$795
This Mytrip deal was found by Cheapflights users on 12/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/79:59 amISP - BCN
2 stops19h 46mMultiple Airlines
vie. 2/136:45 amBCN - ISP
2 stops19h 00mMultiple Airlines
Deal found 12/3$1,229
This Expedia deal was found by Cheapflights users on 12/2. 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.
sáb. 4/410:45 amISP - BCN
2 stops29h 40mMultiple Airlines
vie. 4/1011:05 pmBCN - ISP
2 stops40h 55mMultiple Airlines
Deal found 12/2$1,683

Find flight deals from Islip to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Barcelona (S37). 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 diciembre 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$992
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$719
Provider with most accurate pricing for New York (NYC)-Barcelona flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Barcelona flights.
Search Deals
From Islip Long Island to Barcelona
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($116 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Barcelona 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 diciembre 4, 2025.
Use the filters below to find and compare flights from Islip to Barcelona that are best for you.

Fly from

Islip

Fly to

Barcelona

Route

Depart

Return

Price

IslipBarcelona

ISP - BCN

ISPBCN

Islip Long Island

dom. 1/18

9:52 am-11:55 am

2 stops44h 03m

Barcelona-El Prat

dom. 1/25

6:10 pm-11:05 am

1 stop22h 55m

$795

IslipBarcelona

ISP - BCN

ISPBCN

Islip Long Island

sáb. 2/7

9:59 am-11:45 am

2 stops19h 46m

Barcelona-El Prat

vie. 2/13

6:45 am-7:45 pm

2 stops19h 00m

$1,229

IslipBarcelona

ISP - BCN

ISPBCN

Islip Long Island

sáb. 4/4

10:45 am-10:25 pm

2 stops29h 40m

Barcelona-El Prat

vie. 4/10

11:05 pm-10:00 am

2 stops40h 55m

$1,683

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Best time to book a flight from Islip to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona 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

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Barcelona (average of $285). Flying from Islip, New York to Barcelona 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. 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?

    Islip Long Island (ISP) is the airport you will fly out of if you book a flight from Islip to Barcelona. You should not have trouble finding flights to Barcelona from Long Island; the airport handles an average of 0 outbound flights to Barcelona per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Islip airport to Barcelona. It is only a 7.2 mi journey to Long Island (ISP) from Islip’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to Barcelona 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?

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to Barcelona (average of $285). Flying from Islip, New York to Barcelona 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.