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Cheap flights from Boston to Barcelona-El Prat Airport from C$ 396

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Barcelona-El Prat

Enter your travel dates to find the best prices.

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 10 March 2026.

Tue 28/45:40 p.m.
BOS
-
BCN
1 stop18h 30m
Scandinavian Airlines
Sun 3/59:45 a.m.
BCN
-
BOS
1 stop11h 50m
Scandinavian Airlines
Deal found 8/3C$ 617
Sat 9/55:40 p.m.
BOS
-
BCN
1 stop18h 30m
Scandinavian Airlines
Sun 17/59:45 a.m.
BCN
-
BOS
1 stop11h 50m
Scandinavian Airlines
Deal found 10/3C$ 627
Mon 6/45:40 p.m.
BOS
-
BCN
1 stop18h 30m
Scandinavian Airlines
Sat 18/411:50 a.m.
BCN
-
BOS
2 stops33h 45m
Scandinavian Airlines
Deal found 8/3C$ 636
Mon 31/85:40 p.m.
BOS
-
BCN
1 stop18h 30m
Scandinavian Airlines
Thu 10/912:40 p.m.
BCN
-
BOS
2 stops32h 55m
Scandinavian Airlines
Deal found 6/3C$ 640
Sun 29/35:40 p.m.
BOS
-
BCN
1 stop18h 30m
Scandinavian Airlines
Sun 5/49:45 a.m.
BCN
-
BOS
1 stop11h 50m
Scandinavian Airlines
Deal found 7/3C$ 646
Mon 27/410:50 p.m.
BOS
-
BCN
Nonstop7h 20m
LEVEL
Wed 6/56:30 p.m.
BCN
-
BOS
Nonstop8h 35m
LEVEL
Deal found 8/3C$ 654
Thu 7/59:05 a.m.
BOS
-
BCN
2 stops20h 05m
Scandinavian Airlines
Sun 17/59:45 a.m.
BCN
-
BOS
1 stop11h 50m
Scandinavian Airlines
Deal found 9/3C$ 669
Sun 10/55:40 p.m.
BOS
-
BCN
1 stop18h 30m
Scandinavian Airlines
Fri 15/511:50 a.m.
BCN
-
BOS
2 stops33h 45m
Scandinavian Airlines
Deal found 10/3C$ 670
Thu 30/410:50 p.m.
BOS
-
BCN
Nonstop7h 20m
LEVEL
Wed 13/56:30 p.m.
BCN
-
BOS
Nonstop8h 35m
LEVEL
Deal found 7/3C$ 673
Sun 3/55:40 p.m.
BOS
-
BCN
1 stop18h 30m
Scandinavian Airlines
Wed 6/57:00 p.m.
BCN
-
BOS
1 stop26h 35m
Scandinavian Airlines
Deal found 5/3C$ 674
Sat 25/45:40 p.m.
BOS
-
BCN
1 stop18h 30m
Scandinavian Airlines
Sat 2/511:50 a.m.
BCN
-
BOS
2 stops33h 45m
Scandinavian Airlines
Deal found 6/3C$ 677
Tue 5/55:40 p.m.
BOS
-
BCN
1 stop18h 30m
Scandinavian Airlines
Tue 12/56:45 p.m.
BCN
-
BOS
2 stops26h 50m
Scandinavian Airlines
Deal found 7/3C$ 681

Find 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 10 March 2026.

Round-trip from

C$ 604

One-way from

C$ 396

Popular in

June

Cheapest in

September

Average price

C$ 735
Scandinavian Airlines
  • Scandinavian Airlines
  • 9/5-17/5
  • 2 total stops
  • 30h 20m total
  • Boston to Barcelona
Search Deals
LEVEL
  • LEVEL
  • 15/8
  • Nonstop
  • 7h 10m total
  • Boston to Barcelona
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 182 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 10 March 2026.
Use the filters below to find and compare flights from Boston to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 6/5

9:50 p.m.-11:15 p.m.

1 stop19h 25m

Barcelona-El Prat

Wed 27/5

7:40 a.m.-7:55 p.m.

1 stop18h 15m

C$ 784

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 10/5

9:50 p.m.-10:45 a.m.

1 stop30h 55m

Barcelona-El Prat

Sun 17/5

7:40 a.m.-7:55 p.m.

1 stop18h 15m

C$ 866

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 12/8

12:34 p.m.-8:00 a.m.

2 stops13h 26m

Barcelona-El Prat

Tue 25/8

12:15 p.m.-6:07 p.m.

1 stop11h 52m

C$ 932

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 8/4

10:40 a.m.-8:00 a.m.

1 stop15h 20m

Barcelona-El Prat

Fri 24/4

12:15 p.m.-9:49 a.m.

1 stop27h 34m

C$ 946

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 23/8

1:10 p.m.-8:45 a.m.

1 stop13h 35m

Barcelona-El Prat

Wed 2/9

3:15 p.m.-5:45 p.m.

Nonstop8h 30m

C$ 961
Quickest round-trip

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 10/5

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

Nonstop7h 00m

Barcelona-El Prat

Sun 17/5

3:15 p.m.-5:35 p.m.

Nonstop8h 20m

C$ 982

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 20/5

7:45 a.m.-4:05 p.m.

2 stops26h 20m

Barcelona-El Prat

Wed 3/6

8:00 a.m.-2:45 p.m.

1 stop12h 45m

C$ 1,031

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 10/8

7:25 p.m.-8:35 a.m.

Nonstop7h 10m

Barcelona-El Prat

Mon 24/8

3:15 p.m.-5:41 p.m.

Nonstop8h 26m

C$ 1,064

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 13/5

9:50 p.m.-3:55 p.m.

1 stop12h 05m

Barcelona-El Prat

Sat 23/5

5:00 p.m.-10:35 p.m.

1 stop11h 35m

C$ 1,099

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 1/6

7:15 p.m.-8:35 a.m.

Nonstop7h 20m

Barcelona-El Prat

Tue 9/6

3:15 p.m.-5:38 p.m.

Nonstop8h 23m

C$ 1,152

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 6 March 2026.

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 29 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, September is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of C$ 373). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 563). 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 10 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Barcelona-El Prat Airport as you normally would.

How much does it cost to fly round-trip from Boston to Barcelona-El Prat Airport?

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 10 March 2026.
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
7.2
Good
1,249 reviews
Check prices

Overall

7.2

Comfort

6.8

Boarding

7.2

Entertainment

5.9

Crew

7.7

Food

6.2

Reviews

1 / 20
10.0
Excellent

Luis Alfonso,Feb 2026

BCN - ALC

In overall good. The crew were very nice as always. I must say it is the tidiest airline when it comes to disembarkation
Vueling
7.2
Good
1,249 reviews
Vueling
7.2
Good
1,249 reviews
Check prices

Overall

7.2

Comfort

6.8

Boarding

7.2

Entertainment

5.9

Crew

7.7

Food

6.2

Reviews

1 / 20
10.0
Excellent

Luis Alfonso,Feb 2026

BCN - ALC

In overall good. The crew were very nice as always. I must say it is the tidiest airline when it comes to disembarkation
Iberia
7.0
Good
3,133 reviews
Vueling
7.2
Good
1,249 reviews
Check prices

Overall

7.2

Comfort

6.8

Boarding

7.2

Entertainment

5.9

Crew

7.7

Food

6.2

Reviews

1 / 20
10.0
Excellent

Luis Alfonso,Feb 2026

BCN - ALC

In overall good. The crew were very nice as always. I must say it is the tidiest airline when it comes to disembarkation

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 1 outbound flight 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$ 630, Scandinavian Airlines can have you in Barcelona-El Prat Airport from Boston in 7h 20m. 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 Iberia. Our recent data shows that you can find tickets from as low as C$ 405 on this airline. Additional options worth looking into are Vueling and LEVEL, starting at C$ 555 and C$ 563 round-trip. Users have found that Iberia is 47% 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: LEVEL (75%), American Airlines (75%), Qatar Airways (75%).

  • 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, September is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of C$ 373). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 563). 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
L'Hospitalet de Llobregat

Browse thousands of different options on Cheapflights for your next trip

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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 10 March 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapestC$ 405AverageC$ 539FlexibilityNo cancel feeOn-time77%
Search Iberia flights
VuelingCheapestC$ 555AverageC$ 594FlexibilityNo cancel feeOn-time88%
Search Vueling flights
LEVELCheapestC$ 563AverageC$ 636FlexibilityNo cancel feeOn-timeN/A
Search LEVEL 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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