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Cheap flights from Boston to Barcelona from C$ 269

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 30/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

United Airlines Logo
7:54 p.m. - 2:05 p.m.BOS-BCN
13h 11m2 stops
United Airlines Logo
1:35 p.m. - 1:13 p.m.BCN-BOS
29h 38m2 stops
C$ 508United Airlines
Find Deal
Mon, 27 Oct - Thu, 15 Jan
United Airlines Logo
10:34 a.m. - 7:50 a.m.BOS-BCN
15h 16m2 stops
United Airlines Logo
11:15 a.m. - 11:59 p.m.BCN-BOS
18h 44m1 stop
C$ 513United Airlines
Find Deal
Tue, 30 Sep - Thu, 9 Oct
United Airlines Logo
6:00 a.m. - 7:50 a.m.BOS-BCN
19h 50m1 stop
United Airlines Logo
6:45 a.m. - 9:20 p.m.BCN-BOS
19h 35m1 stop
C$ 515United Airlines
Find Deal
Mon, 20 Oct - Wed, 29 Oct
Multiple Airlines Logo
1:01 p.m. - 6:45 a.m.BOS-BCN
11h 44m1 stop
Multiple Airlines Logo
6:30 p.m. - 9:15 p.m.BCN-BOS
8h 45mdirect
C$ 529Multiple Airlines
Find Deal
Mon, 13 Oct - Wed, 22 Oct
Iberia Logo
10:40 p.m. - 11:55 a.m.BOS-BCN
7h 15mdirect
Iberia Logo
6:10 p.m. - 8:55 p.m.BCN-BOS
8h 45mdirect
C$ 544Iberia
Find Deal
Sun, 4 Jan - Tue, 20 Jan
Multiple Airlines Logo
10:35 p.m. - 1:40 p.m.BOS-BCN
10h 05m1 stop
Multiple Airlines Logo
6:10 p.m. - 8:55 p.m.BCN-BOS
8h 45mdirect
C$ 553Multiple Airlines
Find Deal
Mon, 27 Oct - Tue, 4 Nov
TAP AIR PORTUGAL Logo
6:10 p.m. - 10:35 a.m.BOS-BCN
10h 25m1 stop
TAP AIR PORTUGAL Logo
12:35 p.m. - 8:10 p.m.BCN-BOS
13h 35m1 stop
C$ 554TAP AIR PORTUGAL
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Fri, 24 Oct - Fri, 7 Nov
Delta Logo
9:59 a.m. - 6:00 a.m.BOS-BCN
14h 01m1 stop
Delta Logo
9:30 a.m. - 12:00 p.m.BCN-BOS
8h 30mdirect
C$ 557Delta
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Tue, 30 Sep - Wed, 8 Oct
Delta Logo
8:59 p.m. - 6:00 a.m.BOS-BCN
27h 01m1 stop
Delta Logo
9:30 a.m. - 12:00 p.m.BCN-BOS
8h 30mdirect
C$ 572Delta
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Sun, 12 Oct - Fri, 24 Oct
Iberia Logo
10:40 p.m. - 11:55 a.m.BOS-BCN
7h 15mdirect
Iberia Logo
6:10 p.m. - 8:55 p.m.BCN-BOS
8h 45mdirect
C$ 576Iberia
Find Deal
Mon, 29 Dec - Tue, 6 Jan

United Airlines flights from Boston to Barcelona-El Prat Airport

Our best United Airlines deals on Boston to Barcelona-El Prat Airport flight tickets
United Airlines
27 Oct
BOS7:54 p.m.Boston Logan Intl
13h 11m
2 stops
BCN2:05 p.m.Barcelona-El Prat
15 Jan
BCN1:35 p.m.Barcelona-El Prat
29h 38m
2 stops
BOS1:13 p.m.Boston Logan Intl
C$ 508
Find similar
United Airlines
30 Sep
BOS10:34 a.m.Boston Logan Intl
15h 16m
2 stops
BCN7:50 a.m.Barcelona-El Prat
9 Oct
BCN11:15 a.m.Barcelona-El Prat
18h 44m
1 stop
BOS11:59 p.m.Boston Logan Intl
C$ 513
Find similar
United Airlines
20 Oct
BOS6:00 a.m.Boston Logan Intl
19h 50m
1 stop
BCN7:50 a.m.Barcelona-El Prat
29 Oct
BCN6:45 a.m.Barcelona-El Prat
19h 35m
1 stop
BOS9:20 p.m.Boston Logan Intl
C$ 515
Find similar

Iberia flights from Boston to Barcelona-El Prat Airport

Our best Iberia deals on Boston to Barcelona-El Prat Airport flight tickets
Iberia
4 Jan
BOS10:40 p.m.Boston Logan Intl
7h 15m
BCN11:55 a.m.Barcelona-El Prat
20 Jan
BCN6:10 p.m.Barcelona-El Prat
8h 45m
BOS8:55 p.m.Boston Logan Intl
C$ 544
Find similar
Iberia
29 Dec
BOS10:40 p.m.Boston Logan Intl
7h 15m
BCN11:55 a.m.Barcelona-El Prat
6 Jan
BCN6:10 p.m.Barcelona-El Prat
8h 45m
BOS8:55 p.m.Boston Logan Intl
C$ 576
Find similar
Iberia
28 Sep
BOS11:00 p.m.Boston Logan Intl
7h 15m
BCN12:15 p.m.Barcelona-El Prat
10 Oct
BCN6:30 p.m.Barcelona-El Prat
8h 45m
BOS9:15 p.m.Boston Logan Intl
C$ 648
Find similar

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 16 September 2025.
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 27/10

7:54 p.m.-2:05 p.m.

2 stops13h 11m

Barcelona-El Prat

Thu 15/1

1:35 p.m.-1:13 p.m.

2 stops29h 38m

C$ 508

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 30/9

10:34 a.m.-7:50 a.m.

2 stops15h 16m

Barcelona-El Prat

Thu 9/10

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

1 stop18h 44m

C$ 513

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 20/10

6:00 a.m.-7:50 a.m.

1 stop19h 50m

Barcelona-El Prat

Wed 29/10

6:45 a.m.-9:20 p.m.

1 stop19h 35m

C$ 515

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 13/10

1:01 p.m.-6:45 a.m.

1 stop11h 44m

Barcelona-El Prat

Wed 22/10

6:30 p.m.-9:15 p.m.

Nonstop8h 45m

C$ 529

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 4/1

10:40 p.m.-11:55 a.m.

Nonstop7h 15m

Barcelona-El Prat

Tue 20/1

6:10 p.m.-8:55 p.m.

Nonstop8h 45m

C$ 544

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 27/10

10:35 p.m.-1:40 p.m.

1 stop10h 05m

Barcelona-El Prat

Tue 4/11

6:10 p.m.-8:55 p.m.

Nonstop8h 45m

C$ 553

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Fri 24/10

6:10 p.m.-10:35 a.m.

1 stop10h 25m

Barcelona-El Prat

Fri 7/11

12:35 p.m.-8:10 p.m.

1 stop13h 35m

C$ 554

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 30/9

9:59 a.m.-6:00 a.m.

1 stop14h 01m

Barcelona-El Prat

Wed 8/10

9:30 a.m.-12:00 p.m.

Nonstop8h 30m

C$ 557

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 12/10

8:59 p.m.-6:00 a.m.

1 stop27h 01m

Barcelona-El Prat

Fri 24/10

9:30 a.m.-12:00 p.m.

Nonstop8h 30m

C$ 572

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 29/12

10:40 p.m.-11:55 a.m.

Nonstop7h 15m

Barcelona-El Prat

Tue 6/1

6:10 p.m.-8:55 p.m.

Nonstop8h 45m

C$ 576

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Barcelona from

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 January. Flight prices, which tend to average around C$ 656, 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 January, then departing from Boston during the month March is also very affordable. Most momondo users find prices during this month for around C$ 660.

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$ 577. On the other hand, Sunday 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$ 698.

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$ 645. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 878 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$ 777 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$ 651 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?

No. A direct flight is the cheapest option for a flight between Boston to Barcelona-El Prat Airport.

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

As of September 2025, prices for Boston to Barcelona-El Prat Airport flights are approximately 45% cheaper 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

Best price found

C$ 570

Fastest flight time

7h 10m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun
The best flight deal from Boston to Barcelona-El Prat Airport found on momondo in the last 72 hours is C$ 570
The fastest flight from Boston to Barcelona-El Prat Airport takes 7h 10m
Direct flights go from Boston to Barcelona-El Prat Airport on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
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 7h 15m 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
LEVELPriceFrom C$ 435Free CancellationRating
4.0
4 reviews
Search LEVEL flights
IberiaPriceFrom C$ 462Free CancellationRating
7.0
2,924 reviews
Search Iberia flights
VuelingPriceFrom C$ 570Free CancellationRating
7.1
1,185 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 1,185 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$ 413 (round-trip), much lower than the average airfare cost of C$ 458 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, 2,924 ratings). Iberia flies from Boston to Barcelona-El Prat Airport around 3 times per week, with deals starting from C$ 334 round-trip and rising to an average price of around C$ 447.

Travelling to a place near Barcelona?

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

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