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Cheap flights from Boston to Barcelona from C$ 273

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Barcelona departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap round-trip flights

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LEVEL Logo
10:50 p.m. - 12:10 p.m.
BOS
-
BCN
7h 20mdirect
LEVEL Logo
6:30 p.m. - 9:05 p.m.
BCN
-
BOS
8h 35mdirect
C$ 530LEVEL
Mon, 27 Apr - Tue, 12 May
TAP AIR PORTUGAL Logo
6:05 p.m. - 11:45 p.m.
BOS
-
BCN
23h 40m
1 stop
TAP AIR PORTUGAL Logo
6:45 a.m. - 3:35 p.m.
BCN
-
BOS
13h 50m
1 stop
C$ 551TAP AIR PORTUGAL
Wed, 4 Mar - Mon, 9 Mar
TAP AIR PORTUGAL Logo
6:05 p.m. - 11:45 a.m.
BOS
-
BCN
11h 40m
1 stop
TAP AIR PORTUGAL Logo
6:45 a.m. - 3:35 p.m.
BCN
-
BOS
13h 50m
1 stop
C$ 552TAP AIR PORTUGAL
Wed, 4 Mar - Mon, 9 Mar
Scandinavian Airlines Logo
6:30 p.m. - 6:10 p.m.
BOS
-
BCN
17h 40m
1 stop
Scandinavian Airlines Logo
9:45 a.m. - 3:35 p.m.
BCN
-
BOS
11h 50m
1 stop
C$ 633Scandinavian Airlines
Tue, 31 Mar - Sun, 5 Apr
United Airlines Logo
9:30 a.m. - 8:20 a.m.
BOS
-
BCN
17h 50m
1 stop
United Airlines Logo
12:35 p.m. - 12:56 p.m.
BCN
-
BOS
29h 21m
2 stops
C$ 636United Airlines
Tue, 10 Mar - Tue, 17 Mar
United Airlines Logo
7:34 p.m. - 8:20 a.m.
BOS
-
BCN
30h 46m
1 stop
United Airlines Logo
12:35 p.m. - 9:32 a.m.
BCN
-
BOS
25h 57m
1 stop
C$ 637United Airlines
Sat, 7 Mar - Tue, 17 Mar
United Airlines Logo
6:00 a.m. - 1:15 p.m.
BOS
-
BCN
25h 15m
1 stop
United Airlines Logo
12:15 p.m. - 9:45 a.m.
BCN
-
BOS
27h 30m
1 stop
C$ 638United Airlines
Mon, 20 Apr - Fri, 1 May
United Airlines Logo
7:15 a.m. - 1:15 p.m.
BOS
-
BCN
24h 00m
1 stop
United Airlines Logo
12:15 p.m. - 9:49 a.m.
BCN
-
BOS
27h 34m
1 stop
C$ 640United Airlines
Wed, 15 Apr - Thu, 23 Apr
United Airlines Logo
6:40 p.m. - 8:00 a.m.
BOS
-
BCN
31h 20m
1 stop
United Airlines Logo
1:15 p.m. - 7:11 p.m.
BCN
-
BOS
35h 56m
2 stops
C$ 641United Airlines
Tue, 14 Apr - Wed, 29 Apr
Finnair Logo
11:40 p.m. - 11:55 a.m.
BOS
-
BCN
7h 15mdirect
Finnair Logo
6:10 p.m. - 9:55 p.m.
BCN
-
BOS
8h 45mdirect
C$ 644Finnair
Tue, 10 Mar - Tue, 17 Mar

TAP AIR PORTUGAL flights from Boston to Barcelona-El Prat Airport

Our best TAP AIR PORTUGAL deals on Boston to Barcelona-El Prat Airport flight tickets
TAP AIR PORTUGAL
4 Mar
BOS6:05 p.m.Boston Logan Intl
23h 40m
1 stop
BCN11:45 p.m.Barcelona-El Prat
9 Mar
BCN6:45 a.m.Barcelona-El Prat
13h 50m
1 stop
BOS3:35 p.m.Boston Logan Intl
C$ 551
TAP AIR PORTUGAL
4 Mar
BOS6:05 p.m.Boston Logan Intl
11h 40m
1 stop
BCN11:45 a.m.Barcelona-El Prat
9 Mar
BCN6:45 a.m.Barcelona-El Prat
13h 50m
1 stop
BOS3:35 p.m.Boston Logan Intl
C$ 552
TAP AIR PORTUGAL
4 Mar
BOS6:05 p.m.Boston Logan Intl
11h 40m
1 stop
BCN11:45 a.m.Barcelona-El Prat
9 Mar
BCN6:05 p.m.Barcelona-El Prat
26h 40m
1 stop
BOS3:45 p.m.Boston Logan Intl
C$ 694

Scandinavian Airlines flights from Boston to Barcelona-El Prat Airport

Our best Scandinavian Airlines deals on Boston to Barcelona-El Prat Airport flight tickets
Scandinavian Airlines
31 Mar
BOS6:30 p.m.Boston Logan Intl
17h 40m
1 stop
BCN6:10 p.m.Barcelona-El Prat
5 Apr
BCN9:45 a.m.Barcelona-El Prat
11h 50m
1 stop
BOS3:35 p.m.Boston Logan Intl
C$ 633
Scandinavian Airlines
1 Apr
BOS5:40 p.m.Boston Logan Intl
18h 50m
2 stops
BCN6:30 p.m.Barcelona-El Prat
11 Apr
BCN11:50 a.m.Barcelona-El Prat
33h 45m
2 stops
BOS3:35 p.m.Boston Logan Intl
C$ 683
Scandinavian Airlines
2 Feb
BOS10:05 a.m.Boston Logan Intl
26h 15m
2 stops
BCN6:20 p.m.Barcelona-El Prat
9 Feb
BCN7:10 p.m.Barcelona-El Prat
33h 11m
2 stops
BOS10:21 p.m.Boston Logan Intl
C$ 4,267

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Barcelona-El Prat Airport 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, momondo users made 96,600 searches. Data last updated 28 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

Fly to

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$ 530

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 4/3

6:05 p.m.-11:45 p.m.

1 stop23h 40m

Barcelona-El Prat

Mon 9/3

6:45 a.m.-3:35 p.m.

1 stop13h 50m

C$ 551

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 4/3

6:05 p.m.-11:45 a.m.

1 stop11h 40m

Barcelona-El Prat

Mon 9/3

6:45 a.m.-3:35 p.m.

1 stop13h 50m

C$ 552

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 31/3

6:30 p.m.-6:10 p.m.

1 stop17h 40m

Barcelona-El Prat

Sun 5/4

9:45 a.m.-3:35 p.m.

1 stop11h 50m

C$ 633

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 10/3

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

1 stop17h 50m

Barcelona-El Prat

Tue 17/3

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

2 stops29h 21m

C$ 636

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 7/3

7:34 p.m.-8:20 a.m.

1 stop30h 46m

Barcelona-El Prat

Tue 17/3

12:35 p.m.-9:32 a.m.

1 stop25h 57m

C$ 637

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 20/4

6:00 a.m.-1:15 p.m.

1 stop25h 15m

Barcelona-El Prat

Fri 1/5

12:15 p.m.-9:45 a.m.

1 stop27h 30m

C$ 638

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 15/4

7:15 a.m.-1:15 p.m.

1 stop24h 00m

Barcelona-El Prat

Thu 23/4

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

1 stop27h 34m

C$ 640

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 14/4

6:40 p.m.-8:00 a.m.

1 stop31h 20m

Barcelona-El Prat

Wed 29/4

1:15 p.m.-7:11 p.m.

2 stops35h 56m

C$ 641

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 10/3

11:40 p.m.-11:55 a.m.

Nonstop7h 15m

Barcelona-El Prat

Tue 17/3

6:10 p.m.-9:55 p.m.

Nonstop8h 45m

C$ 644

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Boston to Barcelona-El Prat Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Barcelona-El Prat Airport?

The cheapest month to fly to Barcelona-El Prat Airport from Boston is in September. Flight prices, which tend to average around C$ 648, are often lower during this time because this is during the off-season. If you are unable to visit Barcelona-El Prat Airport during the month of September, then departing from Boston during the month January is also very affordable. Most momondo users find prices during this month for around C$ 649.

What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?

The cheapest day to depart from Boston to Barcelona-El Prat Airport is on a Monday. Travellers who choose to depart for Barcelona-El Prat Airport on a Monday will often find tickets for as low as C$ 571. On the other hand, Tuesday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 767.

What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?

Our most recent data shows that the best time of day to fly to Barcelona-El Prat Airport is in the evening. Flights from Boston to Barcelona-El Prat Airport during this time can be as low as C$ 626. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 868 on average. Flights to Barcelona-El Prat Airport from Boston in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Boston Logan Intl to Barcelona-El Prat flight route?

Fly from Boston Logan Intl to Barcelona-El Prat for the best Boston Logan Intl - Barcelona-El Prat flight prices

How far in advance should I book a flight to Barcelona-El Prat Airport?

You are more likely to see cheaper flights to Barcelona-El Prat Airport from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around C$ 773 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from Boston for as low as C$ 673 on momondo.

What cabin class options are available on Boston Logan Intl to Barcelona-El Prat flights?

There is only 1 cabin class available to choose from on Boston Logan Intl to Barcelona-El Prat flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Barcelona-El Prat Airport flights?

You could potentially save up to 22% on your flight if you consider stops on a Boston to Barcelona-El Prat Airport flight.

How have Boston to Barcelona-El Prat Airport flight prices changed over time?

As of January 2026, prices for Boston to Barcelona-El Prat Airport flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Barcelona-El Prat Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Barcelona-El Prat Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Barcelona-El Prat Airport (BOS to BCN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Barcelona-El Prat Airport

Fastest flight time

13h 40m

Direct flights

Every day
The fastest flight from Boston to Barcelona-El Prat Airport takes 13h 40m
Direct flights go from Boston to Barcelona-El Prat Airport every day.
Search flight deals

  • How far is Boston Logan Intl to Barcelona-El Prat by plane?

    Boston Logan Intl and Barcelona-El Prat are 5858.5 km apart from one another. Typically, this will take 13h 40m by plane in normal conditions.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Barcelona-El Prat Airport?

    Prices for flights from Boston Logan Intl Airport to Barcelona-El Prat Airport are updated daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Barcelona-El Prat Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Barcelona-El Prat Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Barcelona-El Prat Airport.

  • What documentation or ID do you need to fly to Barcelona-El Prat Airport?

    The required travel and health documents for your Barcelona-El Prat Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Barcelona-El Prat Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Boston to Barcelona-El Prat Airport?

  • What is the most popular airline from Boston to Barcelona-El Prat Airport?

Best airlines flying from Boston to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from Boston to Barcelona-El Prat Airport with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom C$ 408Free CancellationRating
7.0
3,099 reviews
Search Iberia flights
LEVELPriceFrom C$ 434Free CancellationRating
0.0
Search LEVEL flights
VuelingPriceFrom C$ 559Free CancellationRating
7.1
1,237 reviews
Search Vueling flights

  • Vueling Flights From Boston to Barcelona-El Prat Airport

    Vueling flies from Boston to Barcelona-El Prat Airport around 3 times per week, with 1,238 momondo users rating the airline 7.1/10. The cheapest Vueling deal from Boston to Barcelona-El Prat Airport in the last 72 hours was C$ 559 (round-trip), much lower than the average airfare cost of C$ 626 for Vueling flights on this route.

  • Iberia Flights From Boston to Barcelona-El Prat Airport

    Another popular option for Boston to Barcelona-El Prat Airport flights is Iberia (7.0/10, 3,099 ratings). Iberia flies from Boston to Barcelona-El Prat Airport around 3 times per week, with deals starting from C$ 408 round-trip and rising to an average price of around C$ 595.

Travelling to a place near Barcelona?

Book flights to Barcelona if you plan to visit one of these locations
Sitges
Calella de Palafrugell
Cadaques
Castelldefels
Malgrat de Mar
El Prat de Llobregat
Tarragona
Badalona
L'Hospitalet de Llobregat
Llafranc
Lloret de Mar
Calella
Pineda de Mar
Salou
Tossa de Mar

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Barcelona?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Barcelona. momondo saves you time and could save you money on your trip.

Can I find flights from Boston to Barcelona with flexible booking policies on momondo?

Flights from Boston to Barcelona with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Boston to Barcelona?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Barcelona from Boston.

I’m not ready to book a flight from Boston to Barcelona right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Barcelona from Boston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Barcelona-El Prat Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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