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$220+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
Apr 21 — Apr 281
Mon 4/21
Mon 4/28
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 16, 2025.

Round-trip from

$423
(Mytrip)

One-way from

$233
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$653
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 ($152 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 16, 2025.

This Iberia deal was found by Cheapflights users on 4/16. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2111:00 pmBOS - BCN
Nonstop7h 15mIberia
Fri 9/266:30 pmBCN - BOS
Nonstop8h 45mIberia
Deal found 4/16$396
This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/67:15 pmBOS - BCN
1 stop20h 30mPLAY
Mon 5/1210:40 pmBCN - BOS
1 stop25h 10mPLAY
Deal found 4/15$423
This FlightHub deal was found by Cheapflights users on 4/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2510:40 pmBOS - BCN
1 stop20h 50mTAP AIR PORTUGAL
Thu 9/118:10 pmBCN - BOS
1 stop24h 10mTAP AIR PORTUGAL
Deal found 4/15$425
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Fri 9/1211:00 pmBOS - BCN
Nonstop7h 15mVueling
Sun 9/216:30 pmBCN - BOS
Nonstop8h 45mVueling
Deal found 4/15$426
This FlightHub deal was found by Cheapflights users on 4/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:50 pmBOS - BCN
1 stop11h 55mIcelandair
Fri 10/3111:45 amBCN - BOS
1 stop28h 50mIcelandair
Deal found 4/15$429
This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/147:15 pmBOS - BCN
2 stops24h 15mMultiple Airlines
Wed 5/211:45 pmBCN - BOS
2 stops34h 05mMultiple Airlines
Deal found 4/15$438
This United Airlines deal was found by Cheapflights users on 4/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/227:35 pmBOS - BCN
1 stop30h 45mUnited Airlines
Thu 10/212:15 pmBCN - BOS
1 stop32h 16mUnited Airlines
Deal found 4/15$451
This Air Canada deal was found by Cheapflights users on 4/15. 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.
Tue 10/1412:15 pmBOS - BCN
1 stop15h 05mAir Canada
Fri 10/319:50 amBCN - BOS
2 stops15h 28mAir Canada
Deal found 4/15$481
This Air France deal was found by Cheapflights users on 4/15. 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 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 9/249:30 amBCN - BOS
Nonstop8h 25mAir France
Deal found 4/15$505
This Mytrip deal was found by Cheapflights users on 4/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/187:15 pmBOS - GRO
2 stops21h 45mMultiple Airlines
Wed 5/213:05 pmGRO - BOS
2 stops32h 45mMultiple Airlines
Deal found 4/16$507
This Delta deal was found by Cheapflights users on 4/14. 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.
Sun 9/219:55 amBOS - BCN
1 stop14h 05mDelta
Sun 9/289:30 amBCN - BOS
Nonstop8h 25mDelta
Deal found 4/14$513
This FlightHub deal was found by Cheapflights users on 4/16. 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 8/275:40 pmBOS - BCN
1 stop18h 30mScandinavian Airlines
Thu 9/1810:30 amBCN - BOS
2 stops35h 05mScandinavian Airlines
Deal found 4/16$516

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 16, 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

Sun 9/21

11:00 pm-12:15 pm

Nonstop7h 15m

Barcelona-El Prat

Fri 9/26

6:30 pm-9:15 pm

Nonstop8h 45m

$396

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 5/6

7:15 pm-9:45 pm

1 stop20h 30m

Barcelona-El Prat

Mon 5/12

10:40 pm-5:50 pm

1 stop25h 10m

$423

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 8/25

10:40 pm-1:30 am

1 stop20h 50m

Barcelona-El Prat

Thu 9/11

8:10 pm-2:20 pm

1 stop24h 10m

$425

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 9/12

11:00 pm-12:15 pm

Nonstop7h 15m

Barcelona-El Prat

Sun 9/21

6:30 pm-9:15 pm

Nonstop8h 45m

$426

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 5/14

7:15 pm-1:30 am

2 stops24h 15m

Barcelona-El Prat

Wed 5/21

1:45 pm-5:50 pm

2 stops34h 05m

$438

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 9/22

7:35 pm-8:20 am

1 stop30h 45m

Barcelona-El Prat

Thu 10/2

12:15 pm-2:31 pm

1 stop32h 16m

$451

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 8/27

5:40 pm-6:10 pm

1 stop18h 30m

Barcelona-El Prat

Tue 9/2

7:00 pm-3:35 pm

1 stop26h 35m

$459

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 10/13

11:35 pm-2:45 pm

1 stop33h 10m

Barcelona-El Prat

Sat 10/18

3:45 pm-11:35 am

1 stop25h 50m

$480

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 8/5

6:00 pm-7:15 am

Nonstop7h 15m

Barcelona-El Prat

Wed 9/24

9:30 am-11:55 am

Nonstop8h 25m

$505

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 10/8

10:20 am-9:20 am

2 stops17h 00m

Barcelona-El Prat

Fri 10/17

6:00 am-5:52 pm

2 stops17h 52m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 25 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 11, 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 $1,079). 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 16, 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 16, 2025.
Read through reviews of airlines operating flights from Boston to Barcelona, such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,916 reviews

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

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
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

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.
KLM
7.8
Good
1,326 reviews
Delta
8.0
Very good
7,916 reviews

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

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
1,269 reviews
Delta
8.0
Very good
7,916 reviews

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

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
7.5
Good
65 reviews
Delta
8.0
Very good
7,916 reviews

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

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
1,580 reviews
Delta
8.0
Very good
7,916 reviews

Food

7.3

Overall

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

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?

    PLAY, at $423, was found to be the cheapest airline from Boston to Barcelona.Alternate airlines to your destination round-trip include Vueling and Iberia. PLAY is priced at 28% 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 Vueling, with whom users have recently found tickets for as low as $233. However, be on the lookout for offers from Icelandair 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 $950, our data indicates the cheapest price to be $216. The most popular route (Boston Logan Intl - Barcelona-El Prat), is priced around $334.

  • 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 $21 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 $50 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 $1,079). 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$265Average$289FlexibilityNo cancel feeOn-time74%
PLAYCheapest$309Average$329FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$331Average$583FlexibilityNo cancel feeOn-time88%
IcelandairCheapest$357Average$513FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$358Average$576FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$405Average$558FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$424Average$729FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$448Average$666FlexibilityNo cancel feeOn-time79%
British AirwaysCheapest$455Average$652FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$476Average$730FlexibilityNo cancel feeOn-time67%

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