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Cheap flights from Boston to Barcelona-El Prat Airport from C$ 401

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BCN
24 Aug — 31 Aug1
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 25 July 2026.

Mon 28/96:05 p.m.
BOS
-
BCN
1 stop21h 45m
TAP AIR PORTUGAL
Wed 7/105:45 p.m.
BCN
-
BOS
1 stop27h 00m
TAP AIR PORTUGAL
Deal found 21/7C$ 772
Tue 18/88:50 p.m.
BOS
-
BCN
1 stop11h 55m
Icelandair
Thu 27/83:45 p.m.
BCN
-
BOS
1 stop12h 00m
Icelandair
Deal found 24/7C$ 801
Sat 15/88:50 p.m.
BOS
-
BCN
1 stop13h 35m
Icelandair
Wed 19/83:45 p.m.
BCN
-
BOS
1 stop33h 05m
Icelandair
Deal found 24/7C$ 804
Tue 28/74:45 p.m.
BOS
-
BCN
1 stop10h 45m
Condor
Thu 3/98:00 a.m.
BCN
-
BOS
1 stop12h 45m
Condor
Deal found 23/7C$ 825
Sat 7/117:50 p.m.
BOS
-
BCN
1 stop11h 50m
Icelandair
Tue 17/1112:25 p.m.
BCN
-
BOS
1 stop11h 25m
Icelandair
Deal found 23/7C$ 830
Sun 16/811:35 p.m.
BOS
-
BCN
Nonstop7h 05m
LEVEL
Wed 26/86:30 p.m.
BCN
-
BOS
Nonstop8h 35m
LEVEL
Deal found 24/7C$ 832
Fri 2/108:50 p.m.
BOS
-
BCN
1 stop11h 55m
Icelandair
Wed 7/103:45 p.m.
BCN
-
BOS
1 stop12h 00m
Icelandair
Deal found 24/7C$ 835
Thu 1/108:50 p.m.
BOS
-
BCN
1 stop11h 55m
Icelandair
Tue 6/103:45 p.m.
BCN
-
BOS
1 stop33h 05m
Icelandair
Deal found 24/7C$ 838
Sun 27/98:50 p.m.
BOS
-
BCN
1 stop11h 55m
Icelandair
Wed 7/103:45 p.m.
BCN
-
BOS
1 stop12h 00m
Icelandair
Deal found 24/7C$ 845
Sun 27/98:50 p.m.
BOS
-
BCN
1 stop11h 55m
Icelandair
Tue 6/103:45 p.m.
BCN
-
BOS
1 stop33h 05m
Icelandair
Deal found 24/7C$ 848
Wed 4/116:00 p.m.
BOS
-
BCN
1 stop13h 45m
TAP AIR PORTUGAL
Mon 16/116:05 p.m.
BCN
-
BOS
2 stops32h 40m
TAP AIR PORTUGAL
Deal found 23/7C$ 870

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 25 July 2026.

Round-trip from

C$ 772

One-way from

C$ 401

Popular in

June

Cheapest in

January

Average price

C$ 1,104
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 28/9-7/10
  • 2 total stops
  • 48h 45m total
  • Boston to Barcelona
Search Deals
7/9
  • 7/9
  • 2 total stops
  • 14h 55m total
  • Boston to Barcelona
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 271 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 25 July 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
Quickest round-trip

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 12/10

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

Nonstop7h 15m

Barcelona-El Prat

Mon 19/10

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

Nonstop8h 30m

C$ 908

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 29/9

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

1 stop19h 25m

Barcelona-El Prat

Fri 6/11

12:20 p.m.-7:05 p.m.

1 stop36h 45m

C$ 911

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 16/9

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

1 stop19h 25m

Barcelona-El Prat

Wed 21/10

12:10 p.m.-7:55 p.m.

1 stop37h 45m

C$ 914

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 10/10

4:20 p.m.-12:50 p.m.

1 stop14h 30m

Barcelona-El Prat

Wed 21/10

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

Nonstop8h 30m

C$ 916

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 16/10

5:10 p.m.-3:35 p.m.

1 stop16h 25m

Barcelona-El Prat

Sat 24/10

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

Nonstop8h 30m

C$ 928

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 28/9

7:05 p.m.-11:15 a.m.

1 stop10h 10m

Barcelona-El Prat

Fri 2/10

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

Nonstop8h 30m

C$ 928

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 15/8

5:10 p.m.-12:50 p.m.

1 stop13h 40m

Barcelona-El Prat

Thu 20/8

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

Nonstop8h 26m

C$ 935

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 7/9

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

Nonstop7h 15m

Barcelona-El Prat

Mon 14/9

11:00 a.m.-11:31 p.m.

1 stop18h 31m

C$ 958

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 6/9

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

1 stop30h 55m

Barcelona-El Prat

Wed 21/10

12:10 p.m.-7:55 p.m.

1 stop37h 45m

C$ 959

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 30/9

7:05 p.m.-11:15 a.m.

1 stop10h 10m

Barcelona-El Prat

Thu 8/10

6:20 a.m.-4:36 p.m.

1 stop16h 16m

C$ 966

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/7

Showing 1-10 of 24 resultsSorted by cheapest first
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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?

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 23 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$ 699). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 1,204). 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 25 July 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?

Airfare is below average for this route at the moment.

Boston to Barcelona-El Prat Airport flights typically cost between C$ 820 and C$ 1,219 in September.
The cheapest round-trip price found within the last 5 days was C$ 772 on TAP AIR PORTUGAL (28 Sep-7 Oct).

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 6 outbound flights to Barcelona-El Prat per day. You should also have plenty of airline options to choose from since 1 airline has 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$ 901, Delta 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 is the cheapest airline to fly 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$ 465 on this airline. Users have found that LEVEL 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 (79%), American Airlines (79%), Qatar Airways (79%).

  • 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$ 699). Flying from Boston to Barcelona-El Prat Airport in June is currently the most expensive (average of C$ 1,204). 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
L'Hospitalet de Llobregat
Santa Susanna
Malgrat de Mar

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Boston to Barcelona-El Prat

Discover the top airline 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 25 July 2026.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapestC$ 465AverageC$ 608FlexibilityNo cancel feeOn-timeN/A
Search LEVEL 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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