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Barcelona-El Prat

$209+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Find cheap flights from Boston to Barcelona-El Prat 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

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Cheapflights Tip: The best prices from Boston Logan Intl to Barcelona-El Prat are usually found in September or January, booked 56 days in advance, depart on a Monday or Tuesday and return on a Thursday

Cheap 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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Sun 12/2810:40 pmBOS - BCN
Nonstop7h 15mLEVEL
Mon 12/296:10 pmBCN - BOS
Nonstop8h 45mLEVEL
Deal found 12/17$795
This Gotogate deal was found by Cheapflights users on 12/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:30 amBOS - BCN
1 stop22h 05mMultiple Airlines
Wed 1/79:10 pmBCN - BOS
2 stops52h 50mMultiple Airlines
Deal found 12/17$811
This KAYAK deal was found by Cheapflights users on 12/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:40 pmBOS - BCN
2 stops35h 35mBrussels Airlines
Tue 1/63:05 pmBCN - BOS
2 stops52h 20mBrussels Airlines
Deal found 12/16$966
This Cheapflightsfares deal was found by Cheapflights users on 12/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/172:15 pmBOS - BCN
1 stop12h 05mLufthansa
Thu 12/2511:55 amBCN - BOS
1 stop12h 40mLufthansa
Deal found 12/16$1,020
This British Airways deal was found by Cheapflights users on 12/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:40 pmBOS - BCN
Nonstop7h 15mMultiple Airlines
Tue 1/66:40 amBCN - BOS
1 stop15h 35mMultiple Airlines
Deal found 12/16$1,046
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/169:50 pmBOS - BCN
1 stop19h 10mMultiple Airlines
Tue 12/2311:55 amBCN - BOS
1 stop12h 40mMultiple Airlines
Deal found 12/15$1,069
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Sun 12/2810:40 pmBOS - BCN
Nonstop7h 15mMultiple Airlines
Tue 12/306:45 amBCN - BOS
3 stops19h 10mMultiple Airlines
Deal found 12/17$1,076

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$371
(Trip.com)

One-way from

$209
(Trip.com)

Popular in

June

Cheapest in

September

Average price

$718

Good round-trip deal

$472 or less

Good one-way deal

$259 or less
Provider with most accurate pricing for Boston Logan Intl-Barcelona-El Prat flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Barcelona-El Prat flights.
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From Boston Logan Intl to Barcelona-El Prat
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One-way flight from Boston Logan Intl to Barcelona-El Prat
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($105 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
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Barcelona-El Prat.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Barcelona-El Prat.
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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 December 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

Sun 1/18

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Sun 1/25

6:10 pm-8:55 pm

Nonstop8h 45m

$389

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 3/8

8:50 pm-1:15 pm

1 stop11h 25m

Barcelona-El Prat

Sun 3/15

11:50 am-6:50 pm

1 stop12h 00m

$389

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 2/2

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Mon 2/16

6:10 pm-8:55 pm

Nonstop8h 45m

$389

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 1/9

7:50 pm-1:35 pm

1 stop11h 45m

Barcelona-El Prat

Fri 2/13

11:50 am-5:50 pm

1 stop12h 00m

$390

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 3/9

11:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Thu 3/19

6:10 pm-9:55 pm

Nonstop8h 45m

$399

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 1/19

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Sat 1/24

6:10 pm-8:55 pm

Nonstop8h 45m

$414

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 1/31

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Thu 2/5

6:10 pm-8:55 pm

Nonstop8h 45m

$424

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Thu 1/15

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Sat 2/14

6:10 pm-8:55 pm

Nonstop8h 45m

$447

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Thu 3/5

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Tue 3/17

6:10 pm-9:55 pm

Nonstop8h 45m

$470

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Thu 1/15

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Mon 1/19

6:10 pm-8:55 pm

Nonstop8h 45m

$470

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 20 results
1
2

Compare providers for flights from Boston 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 Boston to Barcelona-El Prat in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust 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 Boston-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 Boston-Barcelona-El Prat Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boston-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-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 Boston-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 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 December 12, 2025.

The best time to book flights from Boston to Barcelona-El Prat Airport is 56 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, September is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of $275). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of $415). 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 December 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 27% 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 Monday 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.

The best insider tips for Boston to Barcelona-El Prat Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
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

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 December 18, 2025.
Get a feel of what it's like to fly with American Airlines, Vueling, and Iberia 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.
American Airlines
7.2
Good
11,055 reviews

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.5

Food

6.5

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,055 reviews
American Airlines
7.2
Good
11,055 reviews

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.5

Food

6.5

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
Vueling
7.1
Good
1,218 reviews
American Airlines
7.2
Good
11,055 reviews

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.5

Food

6.5

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
Iberia
7.0
Good
3,053 reviews
American Airlines
7.2
Good
11,055 reviews

Entertainment

6.9

Crew

8.0

Overall

7.2

Boarding

7.5

Food

6.5

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

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 3 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 LEVEL, Icelandair, or Iberia 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 $272, Icelandair will fly you from Boston to Barcelona-El Prat Airport and back. In addition to Icelandair, 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 $278 and $308, respectively. You may be able to fly from Boston to Barcelona-El Prat Airport for 52% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Boston to Barcelona-El Prat Airport one-way?

    The cheapest airlines for a one-way flight from Boston to Barcelona-El Prat Airport are Vueling ($129), LEVEL ($130), and Iberia ($157).

  • 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: LEVEL (100%), KLM (100%), Air France (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 $770, our data indicates the cheapest price to be $167. The most popular route (Boston Logan Intl - Barcelona-El Prat), is priced around $319.

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

    Most of the time, Boston to Barcelona-El Prat Airport flights that have layovers will stop in Lisbon. London sees the second most layovers for non-direct flights flying from Boston to Barcelona-El Prat Airport. Madrid comes next as the third most popular layover location for Boston to Barcelona-El Prat Airport flights.

  • 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 $15 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 $30 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 $30 per day.

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

    Of the flights from Boston to Barcelona-El Prat Airport that have layovers, the fewest flights stop in Reykjavik. Zurich sees the next fewest layovers on Boston to Barcelona-El Prat Airport flights. Zurich is followed by Montreal in terms of the least popular layover location 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, September is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of $275). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of $415). 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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Alternative routes for Boston to Barcelona-El Prat

See prices for flight routes from nearby airports that may be better suited for you.
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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$308Average$320FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$334Average$524FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$342Average$535FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$349Average$518FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$355Average$503FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$395Average$838FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$399Average$511FlexibilityNo cancel feeOn-time67%
SWISSCheapest$409Average$689FlexibilityNo cancel feeOn-time79%
Air FranceCheapest$423Average$715FlexibilityNo cancel feeOn-time77%
ITA AirwaysCheapest$429Average$702FlexibilityNo cancel feeOn-time81%

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