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$229+ Cheap flights from Boston (BOS) to Barcelona

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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
May 3 — May 101
Sat 5/3
Sat 5/10
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Barcelona are usually found in January or February, booked 56 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Boston to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 April 28, 2025.

Round-trip from

$428
(Iberia)

One-way from

$229
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$652
From Boston Logan Intl to Barcelona
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One-way flight from Boston Logan Intl to Barcelona
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Highest demand for flights based on searches. 20% potential increase in price ($147 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Boston to Barcelona

Cheapest flights from Boston to Barcelona
Explore the most affordable flight options available from Boston to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2025.

This Iberia deal was found by Cheapflights users on 4/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/214:30 pmBOS - BCN
1 stop9h 30mIberia
Tue 10/76:30 pmBCN - BOS
Nonstop8h 45mIberia
Deal found 4/28$428
This CheapOair deal was found by Cheapflights users on 4/28. 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.
Mon 9/85:40 pmBOS - BCN
1 stop18h 30mScandinavian Airlines
Mon 9/157:00 pmBCN - BOS
1 stop26h 35mScandinavian Airlines
Deal found 4/28$430
This FlightHub deal was found by Cheapflights users on 4/28. 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 10/78:50 pmBOS - BCN
1 stop11h 55mIcelandair
Mon 10/133:45 pmBCN - BOS
1 stop12h 15mIcelandair
Deal found 4/28$432
This oojo deal was found by Cheapflights users on 4/28. 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.
Sun 8/1710:20 pmBOS - BCN
1 stop15h 00mTAP AIR PORTUGAL
Sun 8/246:00 amBCN - BOS
1 stop14h 20mTAP AIR PORTUGAL
Deal found 4/28$433
This Expedia deal was found by Cheapflights users on 4/28. 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 11/226:20 pmBOS - BCN
1 stop20h 30mPLAY
Sun 11/309:50 pmBCN - BOS
1 stop25h 10mPLAY
Deal found 4/28$445
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/76:05 pmBOS - BCN
Nonstop7h 10mDelta
Fri 10/179:30 amBCN - BOS
Nonstop8h 30mDelta
Deal found 4/28$458
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Tue 10/1412:15 pmBOS - BCN
1 stop15h 05mAir Canada
Wed 10/221:15 pmBCN - BOS
2 stops26h 20mAir Canada
Deal found 4/28$472
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/196:00 amBOS - BCN
1 stop19h 50mMultiple Airlines
Fri 10/316:45 amBCN - BOS
2 stops18h 33mMultiple Airlines
Deal found 4/28$475
This Air France deal was found by Cheapflights users on 4/28. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/56:00 pmBOS - BCN
Nonstop7h 15mAir France
Wed 10/229:30 amBCN - BOS
Nonstop8h 30mAir France
Deal found 4/28$493
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sun 10/510:20 amBOS - BCN
1 stop15h 30mUnited Airlines
Thu 10/912:10 pmBCN - BOS
2 stops31h 14mUnited Airlines
Deal found 4/28$496
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Mon 5/510:50 pmBOS - BCN
Nonstop7h 25mVueling
Mon 5/126:30 pmBCN - BOS
Nonstop8h 35mVueling
Deal found 4/28$499
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/58:05 pmBOS - BCN
1 stop13h 35mAmerican Airlines
Tue 8/1911:50 amBCN - BOS
1 stop11h 25mAmerican Airlines
Deal found 4/28$555

Cheapflights Fare Finder

Customize your flight search to find flights from Boston 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 April 28, 2025.
Use the filters below to find and compare flights from Boston to Barcelona that are best for you.

Fly from

Boston

Fly to

Barcelona

Route

Depart

Return

Price

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Thu 5/8

7:15 pm-9:40 pm

1 stop20h 25m

Barcelona-El Prat

Fri 5/16

10:40 pm-5:50 pm

1 stop25h 10m

$446

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 5/12

10:50 pm-12:15 pm

Nonstop7h 25m

Barcelona-El Prat

Fri 5/23

6:30 pm-9:05 pm

Nonstop8h 35m

$461

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 5/5

10:50 pm-12:15 pm

Nonstop7h 25m

Barcelona-El Prat

Mon 5/12

6:30 pm-9:05 pm

Nonstop8h 35m

$469

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 7/5

11:35 pm-2:45 pm

1 stop33h 10m

Barcelona-El Prat

Wed 9/24

3:45 pm-10:00 pm

1 stop12h 15m

$482

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 5/4

4:15 pm-10:45 pm

2 stops24h 30m

Barcelona-El Prat

Thu 5/8

10:35 am-1:55 pm

2 stops33h 20m

$489

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 5/13

5:40 pm-6:10 pm

1 stop18h 30m

Barcelona-El Prat

Fri 5/23

7:00 pm-3:35 pm

1 stop26h 35m

$521

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 5/12

5:05 pm-2:50 pm

2 stops15h 45m

Barcelona-El Prat

Fri 5/23

9:30 am-11:50 am

Nonstop8h 20m

$551

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 5/12

7:40 pm-12:05 pm

1 stop10h 25m

Barcelona-El Prat

Tue 5/20

11:50 am-5:05 pm

1 stop11h 15m

$557

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 5/12

10:40 am-7:50 am

2 stops15h 10m

Barcelona-El Prat

Tue 5/20

1:15 pm-9:57 pm

2 stops14h 42m

$612

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 5/7

9:25 pm-10:25 pm

1 stop19h 00m

Barcelona-El Prat

Mon 5/12

11:05 pm-2:40 pm

1 stop21h 35m

$629

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 30 results
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Best time to book a flight from Boston to Barcelona

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

How far ahead should I book a flight from Boston to Barcelona?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Barcelona. Price data was last updated on April 25, 2025.

The best time to book flights from Boston to Barcelona 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?

Currently, January is the cheapest month in which you can book a flight from Boston to Barcelona (average of $523). Flying from Boston to Barcelona in June is currently the most expensive (average of $1,064). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 28, 2025.

It’s typically best to fly out from Boston to Barcelona in the evening. Doing so could potentially save you 35% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Boston to Barcelona?

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

Travelers seeking maximum savings on their Boston to Barcelona flight should consider departing on Sunday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Barcelona by month

Plan your trip to Barcelona by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Barcelona ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Barcelona when rainfall is around 0.8 in.

Temperature in Barcelona by month

Plan your trip to Barcelona by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Barcelona, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. 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. Reviews last updated April 28, 2025.
Read through reviews of airlines operating flights from Boston to Barcelona, such as Delta, Azores Airlines and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Azores Airlines
7.6
Good
66 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,587 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,444 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

    If you book a flight to Barcelona from Boston, you will be flying from Logan Intl, which is the city’s only airport. Boston Logan Intl (BOS) is located 2.6 mi from the center of Boston. There are 3 flights from Logan Intl to Barcelona per day from 22 different airlines.

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

    Iberia, at $428, was found to be the cheapest airline from Boston to Barcelona.Alternate airlines to your destination round-trip include Icelandair and TAP AIR PORTUGAL. Iberia is priced at 27% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $229. However, be on the lookout for offers from Vueling and Iberia, as they are both options that can get you from Boston to Barcelona for a low price.

  • What are the most popular routes from Boston to Barcelona?

    The most popular route from Boston to Barcelona is Boston Logan Intl - Barcelona-El Prat. You may also consider Boston Logan Intl - Girona Costa Brava or Boston Logan Intl - Reus.

  • What are the most reliable airlines from Boston to Barcelona?

    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 on time: American Airlines (90%), Qatar Airways (90%), Vueling (90%).

  • What are the cheapest flights from Boston to Barcelona?

    Looking for the cheapest flight from Boston to Barcelona? While on average our users pay $953, our data indicates the cheapest price to be $130. The most popular route (Boston Logan Intl - Barcelona-El Prat), is priced around $346.

  • Where are the most common layover locations when flying from Boston to Barcelona?

    Flights departing from Boston and landing in Barcelona layover in Lisbon most frequently. London follows Lisbon in terms of the most common layover location on Boston to Barcelona flights. Madrid ranks third in terms of the most popular layover location on Boston to Barcelona 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 Centro Cultural de Belém. Chiado, Praça do Marquês de Pombal, and Centro Cultural de Belém can be visited by traveling about 4.5 mi, 3.6 mi, and 6.8 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 $22 per day.

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

    If you're on a layover in London and looking for things to do, consider visiting Hyde Park, Piccadilly Circus, or Buckingham Palace. Hyde Park, Piccadilly Circus, and Buckingham Palace are located about 12.5 mi, 14.1 mi, and 13.7 mi, respectively from London Heathrow. Travelers can rent a car at London Heathrow for an average daily rate of $53 to make sightseeing during their layover a little easier.

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

    Madrid travelers tend to visit Puerta del Sol, Plaza Mayor, and Spain Building more than any other attractions. 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 on a layover in Madrid in need of a rental car can book one at Madrid Barajas for about $29.

  • Where are the least popular layover locations for Boston to Barcelona flights?

    The least popular layover on flights from Boston to Barcelona is Montreal. New York is the second least popular location for layovers on flights from Boston to Barcelona. Munich comes in third to last in terms of the least popular layover locations on Boston to Barcelona flights.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston 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 Boston to Barcelona?

    Currently, January is the cheapest month in which you can book a flight from Boston to Barcelona (average of $523). Flying from Boston to Barcelona in June is currently the most expensive (average of $1,064). 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

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Top 10 airlines flying from Boston to Barcelona

Discover the top 10 airlines that operate flights from Boston to Barcelona. 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 April 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$265Average$289FlexibilityNo cancel feeOn-time74%
PLAYCheapest$309Average$328FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$331Average$569FlexibilityNo cancel feeOn-time88%
IcelandairCheapest$357Average$502FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$359Average$576FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$405Average$561FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$424Average$729FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$447Average$665FlexibilityNo cancel feeOn-time79%
British AirwaysCheapest$455Average$648FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$476Average$723FlexibilityNo cancel feeOn-time67%

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