Barcelona-El Prat

$203+ Cheap flights from Boston (BOS) to Barcelona-El Prat (BCN)

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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
Oct 18 — Oct 251
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Cheapflights Tip: The best prices from Boston Logan Intl to Barcelona-El Prat are usually found in January or March, booked 55 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Boston to Barcelona-El Prat

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 September 18, 2025.

Round-trip from

$376
(oojo)

One-way from

$203
(Thrive Travel)

Popular in

June

Cheapest in

January

Average price

$485

Good round-trip deal

$426 or less

Good one-way deal

$237 or less
From Boston Logan Intl to Barcelona-El Prat
One-way flight from Boston Logan Intl to Barcelona-El Prat
Highest demand for flights based on searches. 17% potential increase in price ($117 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Average for round-trip flights in September 2025
Price to beat on a round-trip flight from Boston Logan Intl to Barcelona-El Prat.
Price to beat on a one-way flight from Boston Logan Intl to Barcelona-El Prat.

Find flight deals from Boston to Barcelona-El Prat

Cheapest flights from Boston to Barcelona-El Prat
Explore the most affordable flight options available from Boston to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2025.

This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:05 pmBOS - BCN
1 stop17h 10mTAP AIR PORTUGAL
Sat 11/222:35 pmBCN - BOS
1 stop11h 35mTAP AIR PORTUGAL
Deal found 9/15$376
This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:05 pmBOS - BCN
1 stop10h 00mTAP AIR PORTUGAL
Sun 12/72:35 pmBCN - BOS
1 stop11h 35mTAP AIR PORTUGAL
Deal found 9/16$377
This Air Canada deal was found by Cheapflights users on 9/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2610:45 amBOS - BCN
2 stops16h 50mAir Canada
Wed 12/39:55 amBCN - BOS
2 stops17h 32mAir Canada
Deal found 9/15$380
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:05 pmBOS - BCN
1 stop10h 00mTAP AIR PORTUGAL
Mon 12/86:45 amBCN - BOS
1 stop13h 50mTAP AIR PORTUGAL
Deal found 9/16$381
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Mon 10/2710:20 pmBOS - BCN
1 stop9h 20mIberia
Tue 11/46:10 pmBCN - BOS
Nonstop8h 45mIberia
Deal found 9/16$382
This Gurufare deal was found by Cheapflights users on 9/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/127:50 pmBOS - BCN
1 stop11h 30mIcelandair
Sun 12/1411:50 amBCN - BOS
1 stop12h 00mIcelandair
Deal found 9/16$383
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:10 pmBOS - BCN
1 stop20h 40mMultiple Airlines
Tue 10/712:10 pmBCN - BOS
1 stop27h 20mMultiple Airlines
Deal found 9/15$385
This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/246:00 amBOS - BCN
2 stops27h 30mMultiple Airlines
Wed 10/19:40 amBCN - BOS
2 stops17h 45mMultiple Airlines
Deal found 9/16$386
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2610:15 amBOS - BCN
1 stop17h 20mMultiple Airlines
Mon 12/13:35 pmBCN - BOS
1 stop33h 00mMultiple Airlines
Deal found 9/16$387
This United Airlines deal was found by Cheapflights users on 9/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2210:34 amBOS - BCN
2 stops15h 16mUnited Airlines
Wed 10/296:45 amBCN - BOS
2 stops17h 03mUnited Airlines
Deal found 9/17$388
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1210:45 amBOS - BCN
2 stops16h 50mAir Canada
Sun 11/231:35 pmBCN - BOS
1 stop11h 37mAir Canada
Deal found 9/17$389
This Icelandair deal was found by Cheapflights users on 9/17. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:50 pmBOS - BCN
1 stop11h 30mIcelandair
Fri 12/511:50 amBCN - BOS
1 stop12h 00mIcelandair
Deal found 9/17$390

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 September 18, 2025.
Use the filters below to find and compare flights from Boston to Barcelona-El Prat Airport that are best for you.

Fly from

Boston

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 10/14

11:00 pm-12:15 pm

Nonstop7h 15m

Barcelona-El Prat

Fri 10/24

6:30 pm-9:15 pm

Nonstop8h 45m

$394

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 12/6

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Tue 12/16

6:10 pm-8:55 pm

Nonstop8h 45m

$394

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 10/5

6:30 pm-7:50 am

1 stop31h 20m

Barcelona-El Prat

Tue 10/14

7:50 am-3:25 pm

2 stops13h 35m

$396

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 2/21

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Sat 2/28

6:10 pm-8:55 pm

Nonstop8h 45m

$407

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 11/15

12:45 pm-6:20 pm

2 stops23h 35m

Barcelona-El Prat

Sun 11/23

2:45 pm-3:50 pm

2 stops31h 05m

$409

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 12/8

3:40 pm-9:35 am

1 stop11h 55m

Barcelona-El Prat

Sun 12/14

11:00 am-6:33 pm

1 stop13h 33m

$416

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 11/19

2:21 pm-11:05 am

2 stops14h 44m

Barcelona-El Prat

Mon 11/24

1:35 pm-12:45 am

2 stops17h 10m

$443

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 2/6

5:45 am-9:35 am

2 stops21h 50m

Barcelona-El Prat

Sat 2/14

1:35 pm-1:13 pm

2 stops29h 38m

$448

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 10/14

11:00 pm-12:15 pm

Nonstop7h 15m

Barcelona-El Prat

Tue 10/28

2:40 pm-10:55 pm

1 stop13h 15m

$460

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 10/17

7:40 pm-1:40 pm

1 stop12h 00m

Barcelona-El Prat

Wed 10/22

2:55 pm-8:10 pm

1 stop11h 15m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 23 results
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The best insider tips for Boston to Barcelona-El Prat Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Barcelona-El Prat Airport trip
Airports
BOS

Use the FlyLogan app for real-time flight updates and pre-order food via BOS2GO, saving time before your evening departure.

Read more about BOSby Paul Rubio
BCN

Take the Aerobus from BCN to the city center. It runs frequently, offers WiFi, and is more convenient than the train or metro.

Read more about BCNby Duncan Madden
Our travel experts
Paul Rubio

Paul Rubio

Expert on BOS

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Duncan Madden

Duncan Madden

Expert on BCN

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more

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

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

How far ahead should I book a flight from Boston to Barcelona-El Prat Airport?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Barcelona-El Prat. Price data was last updated on September 12, 2025.

The best time to book flights from Boston to Barcelona-El Prat Airport is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of $523). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,061). 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.

What is the cheapest time of day to fly from BOS to BCN?

Find hourly flight availability from Boston to Barcelona-El Prat. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 18, 2025.

It’s typically best to fly out from Boston to Barcelona-El Prat Airport in the evening. Doing so could potentially save you 29% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Boston to Barcelona-El Prat Airport?

Use this chart to determine the cheapest time to fly round-trip from Boston to Barcelona-El Prat. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Barcelona-El Prat Airport flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Barcelona-El Prat

Get insights into the airlines that provide service to Barcelona-El Prat. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona-El Prat. Reviews last updated September 18, 2025.
Get a feel of what it's like to fly with American Airlines, Vueling, and TAP AIR PORTUGAL from Boston to Barcelona-El Prat Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

6.9

Overall

7.2

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Entertainment

6.9

Overall

7.2

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Entertainment

6.9

Overall

7.2

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Entertainment

6.9

Overall

7.2

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Entertainment

6.9

Overall

7.2

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

8.0

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from Boston 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 Boston to Barcelona-El Prat?

    Most people fly from Boston Logan Intl (BOS) if they book a flight from Boston to Barcelona-El Prat. On average, Logan Intl has 2 outbound flights to Barcelona-El Prat per day from 23 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • How long is the flight from Boston to Barcelona-El Prat Airport?

    There are many flights that can get you from Boston to Barcelona-El Prat Airport in 7h 15m. Fly via Iberia, United Airlines, or LEVEL to get the fastest option. Boston and Barcelona-El Prat Airport are separated by a distance of 3638 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Boston to Barcelona-El Prat Airport round-trip?

    Currently priced at $243, Azores Airlines will fly you from Boston to Barcelona-El Prat Airport and back. In addition to Azores Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from LEVEL and PLAY - these airlines can fly you to your destination from $284 and $309, respectively. You may be able to fly from Boston to Barcelona-El Prat Airport for 56% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Boston to Barcelona-El Prat Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to Barcelona-El Prat Airport on time: American Airlines (100%), Vueling (100%), Finnair (100%).

  • What are the cheapest flights from Boston to Barcelona-El Prat Airport?

    Looking for the cheapest flight from Boston to Barcelona-El Prat Airport? While on average our users pay $785, our data indicates the cheapest price to be $195. The most popular route (Boston Logan Intl - Barcelona-El Prat), is priced around $330.

  • Where are the most common layover locations when flying from Boston to Barcelona-El Prat Airport?

  • What are some popular things to do or see while on a layover in Lisbon?

    Most Lisbon visitors opt to spend their time experiencing Chiado, Praça do Marquês de Pombal, and Londres. Those on a layover in Lisbon interested in visiting Chiado, Praça do Marquês de Pombal, or Londres can do so by traveling 4.5 mi, 3.6 mi, and 2.3 mi, respectively from Lisbon Humberto Delgado. Those looking to explore during their layover in Lisbon can rent a car from Lisbon Humberto Delgado for about $19 per day.

  • What are some popular points of interest to see during a layover in London?

    London travelers tend to visit Hyde Park, Buckingham Palace, and Piccadilly Circus more than any other notable places. Travelers on a layover in London can visit Hyde Park, Buckingham Palace, and Piccadilly Circus, by traveling 12.5 mi, 13.7 mi, and 14.1 mi, respectively after landing at London Heathrow. Travelers can rent a car at London Heathrow for an average daily rate of $40 to make sightseeing during their layover a little easier.

  • What are points of interest worth seeing during a layover in Madrid?

    The majority of Madrid visitors spend their time at Puerta del Sol, Plaza Mayor, and Spain Building. Puerta del Sol, Plaza Mayor, and Spain Building can be visited by traveling about 8.4 mi, 8.6 mi, and 8.5 mi respectively from Madrid Barajas. Those landing in Madrid looking to spend some time exploring during their layover can rent a car for about $25 per day.

  • Where are the least popular layover locations for Boston to Barcelona-El Prat Airport flights?

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

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

  • How can I find direct flights from Boston 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 Boston to Barcelona-El Prat.

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

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

    Currently, January is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of $523). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,061). 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
Castelldefels
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar
Santa Susanna

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Alternative routes for Boston to Barcelona-El Prat

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Boston to Barcelona-El Prat

Discover the top 10 airlines that operate flights from Boston to Barcelona-El Prat. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$243Average$323FlexibilityNo cancel feeOn-time74%
PLAYCheapest$309Average$320FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$337Average$549FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$349Average$529FlexibilityNo cancel feeOn-time76%
LEVELCheapest$351Average$513FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$356Average$495FlexibilityNo cancel feeOn-time76%
SWISSCheapest$402Average$661FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$405Average$584FlexibilityNo cancel feeOn-time67%
Aer LingusCheapest$421Average$706FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$423Average$718FlexibilityNo cancel feeOn-time77%

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