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Cheap flights from Islip, New York to Barcelona from $1,095

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Islip, New York to Barcelona departing on 9/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Islip, New York to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:05 am - 12:40 pmISP  Islip Long Island-BCN Barcelona-El Prat
23h 35m1 stop Boston Logan Intl
Multiple Airlines Logo
8:45 am - 4:58 pmBCN  Barcelona-El Prat-ISP Islip Long Island
38h 13m2 stops London Gatwick Orlando
$1,095Multiple Airlines
Sun, Sep 20 - Sun, Sep 27
Multiple Airlines Logo
2:16 pm - 12:00 pmISP  Islip Long Island-BCN Barcelona-El Prat
15h 44m1 stop Boston Logan Intl
Multiple Airlines Logo
4:30 pm - 4:58 pmBCN  Barcelona-El Prat-ISP Islip Long Island
54h 28m2 stops London Gatwick Orlando
$1,151Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
2:16 pm - 12:00 pmISP  Islip Long Island-BCN Barcelona-El Prat
15h 44m1 stop Boston Logan Intl
Multiple Airlines Logo
4:30 pm - 4:58 pmBCN  Barcelona-El Prat-ISP Islip Long Island
54h 28m2 stops London Gatwick Orlando
$1,152Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
7:05 am - 8:00 amISP  Islip Long Island-BCN Barcelona-El Prat
18h 55m2 stops Boston Logan Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
6:40 am - 8:59 pmBCN  Barcelona-El Prat-ISP Islip Long Island
20h 19m3 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl Boston Logan Intl
$1,222Multiple Airlines
Sun, Sep 20 - Sun, Sep 27
Multiple Airlines Logo
7:05 am - 12:40 pmISP  Islip Long Island-BCN Barcelona-El Prat
23h 35m1 stop Boston Logan Intl
Multiple Airlines Logo
7:10 pm - 10:56 amBCN  Barcelona-El Prat-ISP Islip Long Island
21h 46m1 stop Boston Logan Intl
$1,242Multiple Airlines
Sun, Sep 20 - Sun, Sep 27
Multiple Airlines Logo
2:16 pm - 9:45 amISP  Islip Long Island-BCN Barcelona-El Prat
13h 29m1 stop Boston Logan Intl
Multiple Airlines Logo
12:50 pm - 10:30 amBCN  Barcelona-El Prat-ISP Islip Long Island
27h 40m1 stop Boston Logan Intl
$1,257Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
7:05 am - 8:00 amISP  Islip Long Island-BCN Barcelona-El Prat
18h 55m2 stops Boston Logan Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
5:45 pm - 8:15 pmBCN  Barcelona-El Prat-ISP Islip Long Island
32h 30m2 stops Lisbon Humberto Delgado Boston Logan Intl
$1,292Multiple Airlines
Sun, Sep 20 - Sun, Sep 27
Multiple Airlines Logo
10:05 am - 12:00 pmISP  Islip Long Island-BCN Barcelona-El Prat
19h 55m1 stop Boston Logan Intl
Multiple Airlines Logo
6:30 pm - 10:30 amBCN  Barcelona-El Prat-ISP Islip Long Island
22h 00m1 stop Boston Logan Intl
$1,301Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
7:31 am - 12:10 amISP  Islip Long Island-BCN Barcelona-El Prat
34h 39m3 stops Boston Logan Intl Montreal Pierre Elliott Trudeau Intl London Heathrow
Multiple Airlines Logo
3:00 pm - 8:59 pmBCN  Barcelona-El Prat-ISP Islip Long Island
35h 59m2 stops Lisbon Humberto Delgado Boston Logan Intl
$1,361Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
2:16 pm - 11:55 amISP  Islip Long Island-BCN Barcelona-El Prat
15h 39m2 stops Boston Logan Intl Frankfurt am Main
Multiple Airlines Logo
3:00 pm - 6:35 pmBCN  Barcelona-El Prat-ISP Islip Long Island
33h 35m2 stops Lisbon Humberto Delgado Boston Logan Intl
$1,408Multiple Airlines
Thu, Sep 17 - Thu, Sep 24

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Customize your flight search to find flights from Islip, New York to Barcelona-El Prat Airport 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, momondo users made 832,500 searches. Data last updated August 7, 2026.
Use the filters below to find and compare flights from Islip, New York to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipBarcelona

ISP Islip Long Island - BCN Barcelona-El Prat

ISPBCN

Islip Long Island

Sun 9/20

7:05 am-12:40 pm

1 stop23h 35m

Barcelona-El Prat

Sun 9/27

8:45 am-4:58 pm

2 stops38h 13m

$1,095

IslipBarcelona

ISP Islip Long Island - BCN Barcelona-El Prat

ISPBCN

Islip Long Island

Thu 9/17

2:16 pm-12:00 pm

1 stop15h 44m

Barcelona-El Prat

Thu 9/24

4:30 pm-4:58 pm

2 stops54h 28m

$1,151

IslipBarcelona

ISP Islip Long Island - BCN Barcelona-El Prat

ISPBCN

Islip Long Island

Thu 9/17

2:16 pm-12:00 pm

1 stop15h 44m

Barcelona-El Prat

Thu 9/24

4:30 pm-4:58 pm

2 stops54h 28m

$1,152
Quickest round-trip

IslipBarcelona

ISP Islip Long Island - BCN Barcelona-El Prat

ISPBCN

Islip Long Island

Sun 9/20

7:05 am-8:00 am

2 stops18h 55m

Barcelona-El Prat

Sun 9/27

6:40 am-8:59 pm

3 stops20h 19m

$1,222

IslipBarcelona

ISP Islip Long Island - BCN Barcelona-El Prat

ISPBCN

Islip Long Island

Sun 9/20

7:05 am-12:40 pm

1 stop23h 35m

Barcelona-El Prat

Sun 9/27

7:10 pm-10:56 am

1 stop21h 46m

$1,242

IslipBarcelona

ISP Islip Long Island - BCN Barcelona-El Prat

ISPBCN

Islip Long Island

Thu 9/17

2:16 pm-9:45 am

1 stop13h 29m

Barcelona-El Prat

Thu 9/24

12:50 pm-10:30 am

1 stop27h 40m

$1,257

IslipBarcelona

ISP Islip Long Island - BCN Barcelona-El Prat

ISPBCN

Islip Long Island

Sun 9/20

7:05 am-8:00 am

2 stops18h 55m

Barcelona-El Prat

Sun 9/27

5:45 pm-8:15 pm

2 stops32h 30m

$1,292

IslipBarcelona

ISP Islip Long Island - BCN Barcelona-El Prat

ISPBCN

Islip Long Island

Thu 9/17

10:05 am-12:00 pm

1 stop19h 55m

Barcelona-El Prat

Thu 9/24

6:30 pm-10:30 am

1 stop22h 00m

$1,301

IslipBarcelona

ISP Islip Long Island - BCN Barcelona-El Prat

ISPBCN

Islip Long Island

Thu 9/17

7:31 am-12:10 am

3 stops34h 39m

Barcelona-El Prat

Thu 9/24

3:00 pm-8:59 pm

2 stops35h 59m

$1,361

IslipBarcelona

ISP Islip Long Island - BCN Barcelona-El Prat

ISPBCN

Islip Long Island

Thu 9/17

2:16 pm-11:55 am

2 stops15h 39m

Barcelona-El Prat

Thu 9/24

3:00 pm-6:35 pm

2 stops33h 35m

$1,408

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Barcelona from

How to get the cheapest flight ticket from Islip, New York to Barcelona-El Prat Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Sunday when prices can be found for as low as $606. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $742. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?

Flying to Barcelona-El Prat Airport from Islip, New York in the evening is the least expensive time of day to depart. momondo users have found prices as low as $618 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $817 on average. Flights to Barcelona-El Prat Airport from Islip, New York in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Islip, New York to Barcelona-El Prat Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Islip, New York to Barcelona-El Prat Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Islip, New York to Barcelona-El Prat Airport (ISP to BCN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Islip, New York to Barcelona-El Prat Airport

Fastest flight time

23h 35m

Direct flights

None
The fastest flight from Islip, New York to Barcelona-El Prat Airport takes 23h 35m
There are no direct flights from Islip, New York to Barcelona-El Prat Airport. There are no popular flight routes from Islip, New York to Barcelona-El Prat Airport.
Search flight deals

Frequently asked questions about flying from Islip, New York to Barcelona-El Prat Airport

  • How far is Islip Long Island to Barcelona-El Prat by plane?

    Islip Long Island and Barcelona-El Prat are 3789.9 mi apart from one another. A reasonable flight in good conditions will take 23h 35m.

  • When did momondo last update prices for flights from Islip Long Island Airport to Barcelona-El Prat Airport?

    Prices for flights from Islip Long Island Airport to Barcelona-El Prat Airport are updated daily.

  • How old do you have to be to fly from Islip Long Island Airport to Barcelona-El Prat Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Islip Long Island Airport to Barcelona-El Prat Airport.

  • What documentation or ID do you need to fly to Barcelona-El Prat Airport?

    The necessary travel and health documents for your Barcelona-El Prat Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Barcelona?

Book flights to Barcelona if you plan to visit one of these locations
Lloret de Mar
Sitges
Salou
Tarragona
Castelldefels
L'Hospitalet de Llobregat
El Prat de Llobregat
Tossa de Mar
Calella
Cadaques
Cambrils
Roses
Badalona
Santa Susanna
Empuriabrava
Calella de Palafrugell
Pals
Palafrugell
Malgrat de Mar
La Pineda

Why use momondo?

Why should I use momondo to find a flight deal from Islip to Barcelona?

Finding the right flight to Barcelona from Islip is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Barcelona quick and easy, saving you time and money.

Can I find flights from Islip to Barcelona with flexible booking policies on momondo?

All flight searches from Islip to Barcelona on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Islip to Barcelona?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Barcelona from Islip.

I’m not ready to book a flight from Islip to Barcelona right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Islip to Barcelona now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Barcelona and let you know when they change.

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