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Cheap flights from Boston to Barcelona-El Prat Airport from C$ 274

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 25/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
25 Feb — 4 Mar1
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 26 January 2026.

Mon 27/410:50 p.m.
BOS
-
BCN
Nonstop7h 20m
LEVEL
Tue 12/56:30 p.m.
BCN
-
BOS
Nonstop8h 35m
LEVEL
Deal found 26/1C$ 531
Wed 6/510:50 p.m.
BOS
-
BCN
Nonstop7h 20m
LEVEL
Mon 11/56:30 p.m.
BCN
-
BOS
Nonstop8h 35m
LEVEL
Deal found 25/1C$ 542
Fri 20/210:45 p.m.
BOS
-
BCN
1 stop15h 35m
TAP AIR PORTUGAL
Mon 9/36:45 a.m.
BCN
-
BOS
1 stop13h 50m
TAP AIR PORTUGAL
Deal found 25/1C$ 552
Wed 4/36:05 p.m.
BOS
-
BCN
1 stop11h 40m
TAP AIR PORTUGAL
Mon 9/36:45 a.m.
BCN
-
BOS
1 stop13h 50m
TAP AIR PORTUGAL
Deal found 26/1C$ 553
Thu 29/110:40 p.m.
BOS
-
BCN
Nonstop7h 15m
LEVEL
Sat 7/26:10 p.m.
BCN
-
BOS
Nonstop8h 45m
LEVEL
Deal found 26/1C$ 616
Thu 7/55:40 p.m.
BOS
-
BCN
2 stops35h 20m
Scandinavian Airlines
Sun 17/59:45 a.m.
BCN
-
BOS
1 stop11h 50m
Scandinavian Airlines
Deal found 25/1C$ 625
Fri 2/1011:00 p.m.
BOS
-
BCN
Nonstop7h 10m
LEVEL
Fri 9/106:30 p.m.
BCN
-
BOS
Nonstop8h 45m
LEVEL
Deal found 25/1C$ 627
Mon 9/35:30 a.m.
BOS
-
BCN
1 stop22h 05m
United Airlines
Tue 17/312:35 p.m.
BCN
-
BOS
2 stops29h 21m
United Airlines
Deal found 24/1C$ 636
Tue 10/32:15 p.m.
BOS
-
BCN
1 stop13h 05m
United Airlines
Tue 17/312:35 p.m.
BCN
-
BOS
2 stops29h 21m
United Airlines
Deal found 25/1C$ 637
Sun 19/47:30 p.m.
BOS
-
BCN
1 stop30h 50m
United Airlines
Tue 28/412:15 p.m.
BCN
-
BOS
1 stop32h 37m
United Airlines
Deal found 26/1C$ 638
Mon 20/46:00 a.m.
BOS
-
BCN
1 stop25h 15m
United Airlines
Fri 1/512:15 p.m.
BCN
-
BOS
1 stop27h 30m
United Airlines
Deal found 26/1C$ 640
Fri 24/45:40 p.m.
BOS
-
BCN
2 stops35h 50m
Scandinavian Airlines
Fri 1/57:35 p.m.
BCN
-
BOS
2 stops26h 00m
Scandinavian Airlines
Deal found 26/1C$ 642

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 26 January 2026.

Round-trip from

C$ 542

One-way from

C$ 274

Popular in

June

Cheapest in

September

Average price

C$ 651
LEVEL
  • LEVEL
  • 1/5-9/5
  • Nonstop
  • 15h 55m total
  • Boston to Barcelona
Search Deals
LEVEL
  • LEVEL
  • 9/2
  • Nonstop
  • 7h 15m total
  • Boston to Barcelona
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 197 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 26 January 2026.
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

Mon 27/4

10:50 p.m.-12:10 p.m.

Nonstop7h 20m

Barcelona-El Prat

Tue 12/5

6:30 p.m.-9:05 p.m.

Nonstop8h 35m

C$ 531

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 10/3

2:15 p.m.-8:20 a.m.

1 stop13h 05m

Barcelona-El Prat

Tue 17/3

12:35 p.m.-12:56 p.m.

2 stops29h 21m

C$ 637

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 4/4

10:50 p.m.-12:10 p.m.

Nonstop7h 20m

Barcelona-El Prat

Sat 11/4

6:30 p.m.-9:05 p.m.

Nonstop8h 35m

C$ 662

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 11/3

9:40 p.m.-5:35 p.m.

1 stop14h 55m

Barcelona-El Prat

Tue 17/3

12:35 p.m.-12:56 p.m.

2 stops29h 21m

C$ 663

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Thu 5/3

8:40 p.m.-5:35 p.m.

1 stop14h 55m

Barcelona-El Prat

Mon 9/3

10:30 a.m.-9:41 p.m.

2 stops16h 11m

C$ 685

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 16/3

9:30 a.m.-8:20 a.m.

1 stop17h 50m

Barcelona-El Prat

Tue 24/3

6:45 a.m.-7:36 p.m.

2 stops17h 51m

C$ 688

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 25/2

1:04 p.m.-8:50 a.m.

2 stops13h 46m

Barcelona-El Prat

Sun 1/3

10:15 a.m.-6:21 p.m.

1 stop14h 06m

C$ 690

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 3/5

8:04 p.m.-9:45 a.m.

Nonstop7h 41m

Barcelona-El Prat

Tue 12/5

12:50 p.m.-3:38 p.m.

Nonstop8h 48m

C$ 693

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 22/4

8:05 p.m.-12:40 p.m.

1 stop10h 35m

Barcelona-El Prat

Wed 29/4

1:15 p.m.-11:59 p.m.

2 stops16h 44m

C$ 703

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 8/3

5:30 a.m.-8:35 a.m.

1 stop22h 05m

Barcelona-El Prat

Sat 14/3

1:55 p.m.-9:32 a.m.

2 stops48h 37m

C$ 723

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 21 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 23 January 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$ 377). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 568). 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 26 January 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.

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 26 January 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
7.1
Good
1,237 reviews
Check prices

Boarding

7.2

Food

6.2

Entertainment

5.9

Comfort

6.8

Overall

7.1

Crew

7.7

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
1,237 reviews
Vueling
7.1
Good
1,237 reviews
Check prices

Boarding

7.2

Food

6.2

Entertainment

5.9

Comfort

6.8

Overall

7.1

Crew

7.7

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
3,098 reviews
Vueling
7.1
Good
1,237 reviews
Check prices

Boarding

7.2

Food

6.2

Entertainment

5.9

Comfort

6.8

Overall

7.1

Crew

7.7

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$ 531, LEVEL 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$ 408 on this airline. Additional options worth looking into are LEVEL and Vueling, starting at C$ 434 and C$ 561 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: Vueling (84%), Finnair (84%), LEVEL (83%).

  • 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$ 377). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 568). 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

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Other flights to Barcelona-El Prat

Explore flights to Barcelona-El Prat departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 26 January 2026.
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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 26 January 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapestC$ 408AverageC$ 596FlexibilityNo cancel feeOn-time77%
Search Iberia flights
LEVELCheapestC$ 434AverageC$ 642FlexibilityNo cancel feeOn-timeN/A
Search LEVEL flights
VuelingCheapestC$ 561AverageC$ 628FlexibilityNo 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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