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Cheap flights from Boston to Barcelona-El Prat Airport from C$ 270

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 24/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
13 Oct — 20 Oct1
1 adult
1 adult, Economy

Cheap 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 13 September 2025.

Round-trip from

C$ 505

One-way from

C$ 270

Popular in

June

Cheapest in

January

Average price

C$ 709

Good round-trip deal

C$ 579 or less
United Airlines
  • United Airlines
  • 7/10-14/11
  • 3 total stops
  • 29h 38m total
  • Boston to Barcelona
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Iberia
  • Iberia
  • 8/1
  • Nonstop
  • 7h 15m total
  • Boston to Barcelona
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 34 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Barcelona-El Prat.
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Find 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 13 September 2025.

Tue 7/1010:34 a.m.BOS - BCN
2 stops15h 46mUnited Airlines
Wed 12/111:35 p.m.BCN - BOS
1 stop11h 37mUnited Airlines
Deal found 11/9C$ 505
Sun 5/1010:20 a.m.BOS - BCN
1 stop15h 30mUnited Airlines
Thu 13/1111:00 a.m.BCN - BOS
1 stop12h 15mUnited Airlines
Deal found 11/9C$ 507
Wed 29/1010:35 a.m.BOS - BCN
1 stop17h 00mUnited Airlines
Wed 26/1110:30 a.m.BCN - BOS
2 stops18h 17mUnited Airlines
Deal found 11/9C$ 514
Sun 19/106:30 p.m.BOS - BCN
1 stop31h 20mUnited Airlines
Thu 30/103:05 p.m.BCN - BOS
1 stop31h 10mUnited Airlines
Deal found 11/9C$ 515
Wed 29/1010:35 a.m.BOS - BCN
1 stop17h 00mUnited Airlines
Fri 5/126:45 a.m.BCN - BOS
1 stop19h 35mUnited Airlines
Deal found 11/9C$ 516
Wed 29/1010:25 a.m.BOS - BCN
2 stops21h 40mUnited Airlines
Fri 21/1111:00 a.m.BCN - BOS
2 stops18h 42mUnited Airlines
Deal found 11/9C$ 519
Mon 24/115:30 a.m.BOS - BCN
1 stop22h 05mMultiple Airlines
Mon 1/129:55 a.m.BCN - BOS
1 stop34h 10mMultiple Airlines
Deal found 11/9C$ 521
Tue 7/105:30 a.m.BOS - BCN
1 stop20h 50mUnited Airlines
Fri 24/101:15 p.m.BCN - BOS
2 stops15h 42mUnited Airlines
Deal found 12/9C$ 522
Wed 8/108:05 p.m.BOS - BCN
1 stop19h 35mUnited Airlines
Fri 14/111:35 p.m.BCN - BOS
1 stop13h 52mUnited Airlines
Deal found 11/9C$ 525
Fri 24/1011:00 p.m.BOS - BCN
Nonstop7h 15mLEVEL
Mon 3/116:10 p.m.BCN - BOS
Nonstop8h 45mLEVEL
Deal found 12/9C$ 532

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 629,999 searches. Data last updated 13 September 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

Tue 7/10

10:34 a.m.-8:20 a.m.

2 stops15h 46m

Barcelona-El Prat

Tue 11/11

1:35 p.m.-2:52 p.m.

1 stop31h 17m

C$ 505

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 24/9

7:10 a.m.-7:50 a.m.

2 stops18h 40m

Barcelona-El Prat

Wed 1/10

11:15 a.m.-12:50 a.m.

2 stops19h 35m

C$ 519

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 23/1

4:15 p.m.-9:35 a.m.

2 stops59h 20m

Barcelona-El Prat

Fri 6/2

11:00 a.m.-6:32 p.m.

1 stop13h 32m

C$ 521

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 13/10

6:00 a.m.-7:50 a.m.

1 stop19h 50m

Barcelona-El Prat

Mon 20/10

3:40 p.m.-5:40 p.m.

1 stop32h 00m

C$ 534

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 19/10

11:55 p.m.-1:10 p.m.

Nonstop7h 15m

Barcelona-El Prat

Fri 24/10

6:30 p.m.-9:15 p.m.

Nonstop8h 45m

C$ 545

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 30/9

6:00 a.m.-7:50 a.m.

1 stop19h 50m

Barcelona-El Prat

Tue 7/10

8:00 a.m.-7:54 p.m.

2 stops17h 54m

C$ 547

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 29/10

6:00 a.m.-1:05 p.m.

1 stop26h 05m

Barcelona-El Prat

Tue 4/11

1:35 p.m.-9:32 a.m.

1 stop25h 57m

C$ 565

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 28/10

3:40 p.m.-8:35 a.m.

1 stop11h 55m

Barcelona-El Prat

Tue 4/11

1:35 p.m.-7:12 p.m.

1 stop11h 37m

C$ 574

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 24/10

3:00 p.m.-6:45 a.m.

1 stop9h 45m

Barcelona-El Prat

Fri 7/11

8:50 a.m.-3:15 p.m.

1 stop12h 25m

C$ 590

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 7/3

7:35 p.m.-8:20 a.m.

1 stop30h 45m

Barcelona-El Prat

Sun 15/3

6:45 a.m.-9:00 p.m.

1 stop19h 15m

C$ 606

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 22 results
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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 29 August 2025.

The price you pay for your flight from Boston to Barcelona-El Prat Airport may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to Barcelona-El Prat Airport?

Currently, January is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of C$ 604). Flying from Boston to Barcelona-El Prat Airport in July is currently the most expensive (average of C$ 794). 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 13 September 2025.

It’s optimal to fly from Boston to Barcelona-El Prat Airport at noon. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the morning.

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 13 September 2025.
See what other customers who have flown with Vueling and Iberia from Boston to Barcelona-El Prat Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Vueling
7.1
Good
1,185 reviews
Check prices

Food

6.1

Crew

7.7

Overall

7.1

Comfort

6.8

Boarding

7.1

Entertainment

5.8

Reviews

1 / 20
4.0
Okay

Nadia,May 2024

FCO - BCN

The overhead compartment from my seat broke, and my bag got sent 10 seats over. It was an inconvenience
Vueling
7.1
Good
1,185 reviews
Vueling
7.1
Good
1,185 reviews
Check prices

Food

6.1

Crew

7.7

Overall

7.1

Comfort

6.8

Boarding

7.1

Entertainment

5.8

Reviews

1 / 20
4.0
Okay

Nadia,May 2024

FCO - BCN

The overhead compartment from my seat broke, and my bag got sent 10 seats over. It was an inconvenience
Iberia
7.0
Good
2,928 reviews
Vueling
7.1
Good
1,185 reviews
Check prices

Food

6.1

Crew

7.7

Overall

7.1

Comfort

6.8

Boarding

7.1

Entertainment

5.8

Reviews

1 / 20
4.0
Okay

Nadia,May 2024

FCO - BCN

The overhead compartment from my seat broke, and my bag got sent 10 seats over. It was an inconvenience

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?

    Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to Barcelona-El Prat. You should not have trouble finding flights to Barcelona-El Prat from Logan Intl; the airport handles an average of 2 outbound flights to Barcelona-El Prat per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Boston airport to Barcelona-El Prat. It is only a 4.2 km journey to Logan Intl (BOS) from Boston’s city centre.

  • How long is the flight from Boston to Barcelona-El Prat Airport?

    For as low as C$ 545, United Airlines can have you in Barcelona-El Prat Airport from Boston in 7h 15m. Airlines will cover a distance of 5855 km. This flight may include one or multiple stops.

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

    Our cheapest airline available from Boston to Barcelona-El Prat Airport is LEVEL. Our recent data shows that you can find tickets from as low as C$ 436 on this airline. Additional options worth looking into are Iberia and Vueling, starting at C$ 463 and C$ 571 round-trip. Users have found that LEVEL is 44% cheaper than the other options available to this destination.

  • 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: Finnair (100%), Vueling (92%), Iberia (81%).

  • What are the cheapest flights from Boston to Barcelona-El Prat Airport?

    Looking at all options, your cheapest flight can be booked for C$ 571. While the most popular route (Boston Logan Intl - Barcelona-El Prat) can be booked for C$ 874 on average, our data indicates C$ 653 when flying from Boston to Barcelona-El Prat Airport.

  • 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, January is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of C$ 604). Flying from Boston to Barcelona-El Prat Airport in July is currently the most expensive (average of C$ 794). 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

Travelling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Santa Susanna
Badalona
L'Hospitalet de Llobregat

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Top 3 airlines flying from Boston to Barcelona-El Prat

Discover the top 3 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 629,999 searches. Data last updated 13 September 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapestC$ 436AverageC$ 649FlexibilityNo cancel feeOn-timeN/A
Search LEVEL flights
IberiaCheapestC$ 463AverageC$ 618FlexibilityNo cancel feeOn-time77%
Search Iberia flights
VuelingCheapestC$ 571AverageC$ 634FlexibilityNo cancel feeOn-time88%
Search Vueling flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Boston to Barcelona-El Prat?

When you search for this flight from Boston to Barcelona-El Prat, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Boston to Barcelona-El Prat?

Cheapflights helps you find that perfect flight to Barcelona-El Prat from Boston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Boston to Barcelona-El Prat with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Boston to Barcelona-El Prat, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Boston to Barcelona-El Prat become cheaper?

Not ready to book yet? You can track prices for flights from Boston to Barcelona-El Prat on Cheapflights with our Price Alert feature and get notified when better prices are available.

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