Barcelona

$178+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
ago. 19 — ago. 261
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Cheapflights Tip: The best prices from Boston Logan Intl to Barcelona are usually found in January or March, 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 agosto 14, 2025.

Round-trip from

$348
(FlightHub)

One-way from

$178
(LEVEL)

Popular in

June

Cheapest in

January

Average price

$517
From Boston Logan Intl to Barcelona
One-way flight from Boston Logan Intl to Barcelona
Highest demand for flights based on searches. 16% potential increase in price ($116 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in August 2025

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 agosto 14, 2025.

This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/256:05 pmBOS - BCN
1 stop10h 00mTAP AIR PORTUGAL
lun. 12/19:10 pmBCN - BOS
1 stop23h 25mTAP AIR PORTUGAL
Deal found 8/14$348
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/12. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/86:10 pmBOS - BCN
1 stop14h 00mTAP AIR PORTUGAL
mar. 10/1411:25 amBCN - BOS
1 stop14h 40mTAP AIR PORTUGAL
Deal found 8/12$349
This LEVEL deal was found by Cheapflights users on 8/11. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/2211:00 pmBOS - BCN
Nonstop7h 15mLEVEL
mar. 10/286:10 pmBCN - BOS
Nonstop8h 45mLEVEL
Deal found 8/11$350
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
mié. 10/16:10 pmBOS - BCN
1 stop25h 20mTAP AIR PORTUGAL
mar. 10/73:00 pmBCN - BOS
1 stop11h 05mTAP AIR PORTUGAL
Deal found 8/13$352
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
dom. 10/56:10 pmBOS - BCN
1 stop14h 00mTAP AIR PORTUGAL
mar. 10/1410:40 pmBCN - BOS
1 stop21h 40mTAP AIR PORTUGAL
Deal found 8/12$354
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
dom. 11/236:05 pmBOS - BCN
1 stop10h 00mTAP AIR PORTUGAL
vie. 12/56:45 amBCN - BOS
1 stop13h 50mTAP AIR PORTUGAL
Deal found 8/11$358
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
lun. 11/246:05 pmBOS - BCN
1 stop10h 00mTAP AIR PORTUGAL
mié. 12/36:45 amBCN - BOS
1 stop13h 50mTAP AIR PORTUGAL
Deal found 8/11$359
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
mié. 10/810:40 pmBOS - BCN
1 stop12h 15mTAP AIR PORTUGAL
jue. 10/163:00 pmBCN - BOS
1 stop10h 50mTAP AIR PORTUGAL
Deal found 8/12$360
This MaxMilhas deal was found by Cheapflights users on 8/13. 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 MaxMilhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/2410:45 pmBOS - BCN
1 stop14h 35mTAP AIR PORTUGAL
vie. 11/79:10 pmBCN - BOS
1 stop29h 00mTAP AIR PORTUGAL
Deal found 8/13$364
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
mar. 9/3010:40 pmBOS - BCN
1 stop17h 10mTAP AIR PORTUGAL
dom. 10/58:15 pmBCN - BOS
1 stop29h 50mTAP AIR PORTUGAL
Deal found 8/13$367
This Flightnetwork deal was found by Cheapflights users on 8/12. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/56:10 pmBOS - BCN
1 stop19h 10mTAP AIR PORTUGAL
dom. 10/1210:40 pmBCN - BOS
1 stop27h 25mTAP AIR PORTUGAL
Deal found 8/12$369
This Mytrip deal was found by Cheapflights users on 8/13. 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.
sáb. 9/2710:45 pmBOS - GRO
2 stops17h 00mMultiple Airlines
sáb. 10/49:00 pmGRO - BOS
3 stops47h 20mMultiple Airlines
Deal found 8/13$745

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 agosto 14, 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

mié. 10/8

6:10 pm-2:10 pm

1 stop14h 00m

Barcelona-El Prat

mar. 10/14

11:25 am-8:05 pm

1 stop14h 40m

$349

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

mié. 10/22

11:00 pm-12:15 pm

Nonstop7h 15m

Barcelona-El Prat

mar. 10/28

6:10 pm-9:55 pm

Nonstop8h 45m

$350

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

vie. 10/24

10:45 pm-9:50 pm

1 stop17h 05m

Barcelona-El Prat

vie. 11/7

2:35 pm-8:10 pm

1 stop11h 35m

$350

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

lun. 9/29

6:10 pm-10:35 am

1 stop10h 25m

Barcelona-El Prat

lun. 10/6

3:00 pm-8:05 pm

1 stop11h 05m

$375

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

jue. 10/16

11:00 pm-12:15 pm

Nonstop7h 15m

Barcelona-El Prat

mar. 10/28

6:10 pm-9:55 pm

Nonstop8h 45m

$388

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

mié. 10/22

11:00 pm-12:15 pm

Nonstop7h 15m

Barcelona-El Prat

jue. 10/30

6:10 pm-9:55 pm

Nonstop8h 45m

$388

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

vie. 10/17

11:00 pm-12:15 pm

Nonstop7h 15m

Barcelona-El Prat

sáb. 11/1

6:10 pm-9:55 pm

Nonstop8h 45m

$388

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

lun. 10/13

11:00 pm-12:15 pm

Nonstop7h 15m

Barcelona-El Prat

mar. 10/28

6:10 pm-9:55 pm

Nonstop8h 45m

$388

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

dom. 10/5

11:55 pm-1:10 pm

Nonstop7h 15m

Barcelona-El Prat

dom. 10/12

7:25 pm-10:10 pm

Nonstop8h 45m

$388

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

jue. 10/16

11:00 pm-12:15 pm

Nonstop7h 15m

Barcelona-El Prat

vie. 10/24

6:30 pm-9:15 pm

Nonstop8h 45m

$388

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 21 results
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2
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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 August 8, 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 $1,057). 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 agosto 14, 2025.

It’s typically best to fly out from Boston to Barcelona in the evening. Doing so could potentially save you 28% 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?

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 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

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 agosto 14, 2025.
Read reviews from past customers who have flown American Airlines, Vueling, and TAP AIR PORTUGAL from Boston to Barcelona. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.5

Overall

7.2

Entertainment

6.9

Comfort

7.2

Crew

8.0

Food

6.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

Boarding

7.5

Overall

7.2

Entertainment

6.9

Comfort

7.2

Crew

8.0

Food

6.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

Boarding

7.5

Overall

7.2

Entertainment

6.9

Comfort

7.2

Crew

8.0

Food

6.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

Boarding

7.5

Overall

7.2

Entertainment

6.9

Comfort

7.2

Crew

8.0

Food

6.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

Boarding

7.5

Overall

7.2

Entertainment

6.9

Comfort

7.2

Crew

8.0

Food

6.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

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 2 flights from Logan Intl to Barcelona per day from 23 different airlines.

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

    Azores Airlines, at $243, was found to be the cheapest airline from Boston to Barcelona.Alternate airlines to your destination round-trip include LEVEL and PLAY. Azores Airlines is priced at 57% lower than the current average price of a flight leaving 3 months from now.

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

  • 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: easyJet (76%), Qatar Airways (75%), Iberia (73%).

  • What are the cheapest flights from Boston to Barcelona?

    Looking for the cheapest flight from Boston to Barcelona? While on average our users pay $664, our data indicates the cheapest price to be $138. The most popular route (Boston Logan Intl - Barcelona-El Prat), is priced around $322.

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

  • 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. Chiado, Praça do Marquês de Pombal, and Londres can be visited by traveling about 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 $32 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, Buckingham Palace, or Piccadilly Circus. Hyde Park, Buckingham Palace, and Piccadilly Circus are located about 12.5 mi, 13.7 mi, and 14.1 mi, respectively from London Heathrow. Travelers can rent a car at London Heathrow for an average daily rate of $48 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 $30.

  • Where are the least popular layover locations for 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 $1,057). 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$243Average$323FlexibilityNo cancel feeOn-time74%
PLAYCheapest$308Average$320FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$327Average$478FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$349Average$545FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$349Average$581FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$355Average$507FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$405Average$607FlexibilityNo cancel feeOn-time67%
SWISSCheapest$410Average$660FlexibilityNo cancel feeOn-time79%
Aer LingusCheapest$423Average$714FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$424Average$725FlexibilityNo cancel feeOn-time77%

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