HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Barcelona

$201+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Barcelona 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Boston Logan Intl to Barcelona are usually found in September or January, booked 55 days in advance, depart on a Monday or Tuesday 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 October 14, 2025.

Round-trip from

$411
(Kiwi.com)

One-way from

$201
(LEVEL)

Popular in

June

Cheapest in

September

Average price

$488
From Boston Logan Intl to Barcelona
Search Deals
One-way flight from Boston Logan Intl to Barcelona
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($112 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 14, 2025.

This oojo deal was found by Cheapflights users on 10/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:50 pmBOS - BCN
1 stop11h 30mIcelandair
Tue 11/2511:50 amBCN - BOS
1 stop28h 45mIcelandair
Deal found 10/12$412
This lastminute.com deal was found by Cheapflights users on 10/13. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:59 pmBOS - BCN
2 stops39h 21mScandinavian Airlines
Thu 11/2010:45 amBCN - BOS
2 stops39h 25mScandinavian Airlines
Deal found 10/13$414
This FlightHub deal was found by Cheapflights users on 10/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:59 pmBOS - BCN
2 stops39h 21mScandinavian Airlines
Thu 11/1310:45 amBCN - BOS
2 stops35h 05mScandinavian Airlines
Deal found 10/12$415
This Iberia deal was found by Cheapflights users on 10/13. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2710:40 pmBOS - BCN
Nonstop7h 15mIberia
Thu 12/49:15 pmBCN - BOS
1 stop24h 00mIberia
Deal found 10/13$416
This LEVEL deal was found by Cheapflights users on 10/13. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:40 pmBOS - BCN
Nonstop7h 15mLEVEL
Thu 11/136:10 pmBCN - BOS
Nonstop8h 45mLEVEL
Deal found 10/13$419
This Mytrip deal was found by Cheapflights users on 10/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:00 pmBOS - BCN
2 stops26h 30mMultiple Airlines
Tue 11/189:15 pmBCN - BOS
3 stops30h 12mMultiple Airlines
Deal found 10/14$420
This lol.travel deal was found by Cheapflights users on 10/12. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:45 pmBOS - BCN
1 stop12h 30mTAP AIR PORTUGAL
Mon 11/179:10 pmBCN - BOS
1 stop23h 35mTAP AIR PORTUGAL
Deal found 10/12$421
This oojo deal was found by Cheapflights users on 10/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/16:05 pmBOS - BCN
1 stop20h 15mTAP AIR PORTUGAL
Fri 12/52:35 pmBCN - BOS
1 stop11h 35mTAP AIR PORTUGAL
Deal found 10/12$423
This Kiwi.com deal was found by Cheapflights users on 10/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:40 pmBOS - BCN
Nonstop7h 15mIberia
Sat 11/156:10 pmBCN - BOS
Nonstop8h 45mIberia
Deal found 10/14$424
This AirNGo deal was found by Cheapflights users on 10/13. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:45 pmBOS - BCN
1 stop19h 00mTAP AIR PORTUGAL
Thu 11/206:45 amBCN - BOS
1 stop13h 50mTAP AIR PORTUGAL
Deal found 10/13$425

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 October 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

Mon 3/9

11:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Sat 3/14

6:10 pm-9:55 pm

Nonstop8h 45m

$417

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 3/23

7:19 pm-8:20 am

1 stop32h 01m

Barcelona-El Prat

Thu 4/2

1:15 pm-9:51 am

1 stop26h 36m

$465

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 3/24

5:45 am-8:20 am

1 stop21h 35m

Barcelona-El Prat

Thu 4/2

1:15 pm-9:51 am

1 stop26h 36m

$465

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Thu 11/13

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Thu 11/20

12:30 pm-6:29 pm

1 stop11h 59m

$466

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 2/14

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Thu 2/19

6:10 pm-8:55 pm

Nonstop8h 45m

$471

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Thu 3/26

11:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Wed 4/1

6:30 pm-9:05 pm

Nonstop8h 35m

$471

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 3/30

10:50 pm-12:15 pm

Nonstop7h 25m

Barcelona-El Prat

Wed 4/1

6:30 pm-9:05 pm

Nonstop8h 35m

$471

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Thu 11/13

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Thu 11/20

8:50 am-3:15 pm

1 stop12h 25m

$472

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 3/28

10:50 pm-12:05 pm

Nonstop7h 15m

Barcelona-El Prat

Fri 4/3

6:30 pm-9:05 pm

Nonstop8h 35m

$473

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 3/1

12:11 pm-8:20 am

2 stops14h 09m

Barcelona-El Prat

Wed 3/11

12:35 pm-12:30 am

2 stops16h 55m

$479

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 23 results
1
2
3

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 October 10, 2025.

The best time to book flights from Boston to Barcelona 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?

Currently, September is the cheapest month in which you can book a flight from Boston to Barcelona (average of $275). Flying from Boston to Barcelona in June is currently the most expensive (average of $411). 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 October 14, 2025.

It’s typically best to fly out from Boston to Barcelona in the evening. Doing so could potentially save you 19% 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 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.

Weekly flight availability from Boston to Barcelona

Explore weekly flight availability from Boston to Barcelona. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated October 14, 2025.

The most flights from BOS to S37 are scheduled on a Thursday (8 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

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 October 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.
American Airlines
7.2
Good
11,039 reviews

Entertainment

6.9

Boarding

7.5

Overall

7.2

Food

6.4

Crew

8.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
11,039 reviews
American Airlines
7.2
Good
11,039 reviews

Entertainment

6.9

Boarding

7.5

Overall

7.2

Food

6.4

Crew

8.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
Vueling
7.1
Good
1,196 reviews
American Airlines
7.2
Good
11,039 reviews

Entertainment

6.9

Boarding

7.5

Overall

7.2

Food

6.4

Crew

8.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
TAP AIR PORTUGAL
7.1
Good
2,015 reviews
American Airlines
7.2
Good
11,039 reviews

Entertainment

6.9

Boarding

7.5

Overall

7.2

Food

6.4

Crew

8.0

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
Iberia
7.0
Good
2,988 reviews
American Airlines
7.2
Good
11,039 reviews

Entertainment

6.9

Boarding

7.5

Overall

7.2

Food

6.4

Crew

8.0

Comfort

7.2

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

  • How long is the flight from Boston to Barcelona?

    LEVEL, United Airlines, and Iberia can get you from Boston to Barcelona in just under 7h 15m. Your travel time can differ by up to 24h 46m. There are 3638 mi between Boston and Barcelona. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Azores Airlines, at $269, 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 52% lower than the current average price of a flight leaving 3 months from now.

  • 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 - Reus or Boston Logan Intl - Girona Costa Brava.

  • 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: Vueling (100%), American Airlines (94%), Iberia (82%).

  • What are the cheapest flights from Boston to Barcelona?

    Looking for the cheapest flight from Boston to Barcelona? While on average our users pay $739, our data indicates the cheapest price to be $172. The most popular route (Boston Logan Intl - Barcelona-El Prat), is priced around $323.

  • 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 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 $17 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 $36 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 $26.

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

    The least popular layover on flights from Boston to Barcelona is Zurich. Montreal is the second least popular location for layovers on flights from Boston to Barcelona. New York 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, September is the cheapest month in which you can book a flight from Boston to Barcelona (average of $275). Flying from Boston to Barcelona in June is currently the most expensive (average of $411). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Azores AirlinesCheapest$269Average$406FlexibilityNo cancel feeOn-time74%
PLAYCheapest$309Average$320FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$338Average$551FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$349Average$523FlexibilityNo cancel feeOn-time76%
LEVELCheapest$349Average$537FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$355Average$539FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$399Average$572FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$423Average$715FlexibilityNo cancel feeOn-time77%
ITA AirwaysCheapest$429Average$702FlexibilityNo cancel feeOn-time81%
Scandinavian AirlinesCheapest$432Average$527FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.