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Cheap flights from Boston to Barcelona-El Prat Airport from C$ 418

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 27/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
22 May — 29 May1
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 22 April 2026.

Wed 9/911:00 p.m.
BOS
-
BCN
Nonstop7h 10m
Iberia
Sun 27/97:20 p.m.
BCN
-
BOS
Nonstop8h 45m
Iberia
Deal found 19/4C$ 678
Sun 30/811:50 p.m.
BOS
-
BCN
Nonstop7h 10m
LEVEL
Sun 27/97:20 p.m.
BCN
-
BOS
Nonstop8h 45m
LEVEL
Deal found 20/4C$ 703
Sat 16/510:50 p.m.
BOS
-
BCN
Nonstop7h 20m
LEVEL
Sat 23/56:30 p.m.
BCN
-
BOS
Nonstop8h 35m
LEVEL
Deal found 22/4C$ 729
Sat 16/510:50 p.m.
BOS
-
BCN
Nonstop7h 20m
LEVEL
Fri 22/56:30 p.m.
BCN
-
BOS
Nonstop8h 35m
LEVEL
Deal found 18/4C$ 731
Wed 7/1011:00 p.m.
BOS
-
BCN
Nonstop7h 10m
LEVEL
Wed 14/106:30 p.m.
BCN
-
BOS
Nonstop8h 45m
LEVEL
Deal found 19/4C$ 743
Sat 10/108:50 p.m.
BOS
-
BCN
2 stops16h 05m
Multiple Airlines
Thu 15/106:30 p.m.
BCN
-
BOS
Nonstop8h 45m
Multiple Airlines
Deal found 19/4C$ 765
Mon 11/54:45 p.m.
BOS
-
BCN
1 stop10h 45m
Condor
Thu 28/58:00 a.m.
BCN
-
BOS
1 stop12h 45m
Condor
Deal found 21/4C$ 772
Thu 8/108:50 p.m.
BOS
-
BCN
1 stop11h 55m
Icelandair
Wed 14/103:45 p.m.
BCN
-
BOS
1 stop12h 00m
Icelandair
Deal found 19/4C$ 773
Fri 11/98:50 p.m.
BOS
-
BCN
1 stop11h 55m
Icelandair
Fri 25/93:45 p.m.
BCN
-
BOS
1 stop12h 00m
Icelandair
Deal found 22/4C$ 774
Sat 12/911:00 p.m.
BOS
-
BCN
1 stop11h 25m
Icelandair
Sat 26/93:45 p.m.
BCN
-
BOS
1 stop12h 00m
Icelandair
Deal found 19/4C$ 776
Sat 2/510:50 p.m.
BOS
-
BCN
Nonstop7h 20m
LEVEL
Tue 12/56:30 p.m.
BCN
-
BOS
Nonstop8h 35m
LEVEL
Deal found 18/4C$ 780
Thu 10/911:00 p.m.
BOS
-
BCN
Nonstop7h 10m
LEVEL
Sun 27/97:20 p.m.
BCN
-
BOS
Nonstop8h 45m
LEVEL
Deal found 19/4C$ 784

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 22 April 2026.

Round-trip from

C$ 678

One-way from

C$ 418

Popular in

June

Cheapest in

September

Average price

C$ 821

Good round-trip deal

C$ 590 or less
Iberia
  • Iberia
  • 13/9-23/9
  • Nonstop
  • 15h 55m total
  • Boston to Barcelona
Search Deals
LEVEL
  • LEVEL
  • 27/8
  • Nonstop
  • 7h 10m total
  • Boston to Barcelona
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 210 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Barcelona-El Prat.
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 22 April 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

Sun 12/7

11:35 p.m.-12:40 p.m.

Nonstop7h 05m

Barcelona-El Prat

Thu 16/7

7:10 p.m.-9:45 p.m.

Nonstop8h 35m

C$ 866

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 15/9

8:13 p.m.-9:45 a.m.

Nonstop7h 32m

Barcelona-El Prat

Wed 23/9

12:50 p.m.-3:28 p.m.

Nonstop8h 38m

C$ 952

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 9/9

6:00 a.m.-8:45 a.m.

1 stop20h 45m

Barcelona-El Prat

Sat 26/9

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

Nonstop8h 30m

C$ 958

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 11/9

6:00 a.m.-8:45 a.m.

1 stop20h 45m

Barcelona-El Prat

Sat 3/10

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

Nonstop8h 30m

C$ 958

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 11/9

6:00 a.m.-8:45 a.m.

1 stop20h 45m

Barcelona-El Prat

Mon 28/9

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

Nonstop8h 30m

C$ 958
Quickest round-trip

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 16/5

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

Nonstop7h 15m

Barcelona-El Prat

Thu 4/6

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

Nonstop8h 23m

C$ 1,016

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 31/8

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

Nonstop7h 10m

Barcelona-El Prat

Sun 27/9

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

Nonstop8h 30m

C$ 1,020

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Thu 7/5

9:05 a.m.-11:10 a.m.

2 stops20h 05m

Barcelona-El Prat

Sun 10/5

12:20 p.m.-3:35 p.m.

2 stops33h 15m

C$ 1,034

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 11/9

8:05 p.m.-3:35 p.m.

2 stops13h 30m

Barcelona-El Prat

Fri 25/9

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

1 stop11h 52m

C$ 1,035

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 30/8

6:00 a.m.-8:45 a.m.

1 stop20h 45m

Barcelona-El Prat

Sat 26/9

10:55 a.m.-7:22 a.m.

1 stop26h 27m

C$ 1,048

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/4

Showing 1-10 of 24 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 17 April 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 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, September is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of C$ 647). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 1,064). 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 22 April 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 22 April 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
1,263 reviews
Check prices

Overall

7.2

Boarding

7.2

Comfort

6.8

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
1,263 reviews
Vueling
7.2
Good
1,263 reviews
Check prices

Overall

7.2

Boarding

7.2

Comfort

6.8

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
3,191 reviews
Vueling
7.2
Good
1,263 reviews
Check prices

Overall

7.2

Boarding

7.2

Comfort

6.8

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 3 outbound flights to Barcelona-El Prat per day. You should also have plenty of airline options to choose from since 4 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$ 678, Iberia can have you in Barcelona-El Prat Airport from Boston in 7h 10m. Airlines will cover a distance of 5855 km. All flights are typically direct.

  • 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$ 407 on this airline. Additional options worth looking into are LEVEL and LEVEL, starting at C$ 433 and C$ 451 round-trip. Users have found that Iberia is 48% 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: Vueling (88%), LEVEL (86%), American Airlines (84%).

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

    Looking at all options, your cheapest flight can be booked for C$ 590. While the most popular route (Boston Logan Intl - Barcelona-El Prat) can be booked for C$ 1,044 on average, our data indicates C$ 590 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, September is the cheapest month in which you can book a flight from Boston to Barcelona-El Prat Airport (average of C$ 647). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 1,064). 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 4 airlines flying from Boston to Barcelona-El Prat

Discover the top 4 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 22 April 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapestC$ 407AverageC$ 610FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LEVELCheapestC$ 433AverageC$ 641FlexibilityNo cancel feeOn-timeN/A
Search LEVEL flights
LEVELCheapestC$ 451AverageC$ 590FlexibilityNo cancel feeOn-timeN/A
Search LEVEL flights
VuelingCheapestC$ 626AverageC$ 626FlexibilityNo cancel feeOn-time88%
Search Vueling flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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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