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Cheap flights from Boston to Barcelona from $194

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 9/21. 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

Air Canada Logo
10:40 am - 7:50 amBOS-BCN
15h 10m2 stops
Air Canada Logo
12:35 pm - 9:57 amBCN-BOS
26h 22m2 stops
$368Air Canada
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Mon, Oct 20 - Fri, Oct 31
Air Canada Logo
6:55 pm - 9:35 amBOS-BCN
32h 40m2 stops
Air Canada Logo
1:35 pm - 9:57 amBCN-BOS
26h 22m2 stops
$369Air Canada
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Tue, Feb 3 - Tue, Feb 10
Logo
5:10 pm - 7:50 pmBOS-BCN
20h 40m1 stop
Logo
10:15 am - 3:55 pmBCN-BOS
11h 40m1 stop
$370
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Wed, Oct 1 - Thu, Oct 9
American Airlines Logo
4:35 pm - 12:45 pmBOS-BCN
14h 10m1 stop
American Airlines Logo
6:30 pm - 9:15 pmBCN-BOS
8h 45mnonstop
$371American Airlines
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Sun, Oct 5 - Thu, Oct 16
American Airlines Logo
4:30 pm - 11:45 amBOS-BCN
13h 15m1 stop
American Airlines Logo
6:30 pm - 9:15 pmBCN-BOS
8h 45mnonstop
$372American Airlines
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Mon, Oct 13 - Wed, Oct 22
TAP AIR PORTUGAL Logo
6:05 pm - 1:45 pmBOS-BCN
13h 40m1 stop
TAP AIR PORTUGAL Logo
12:35 pm - 8:10 pmBCN-BOS
13h 35m1 stop
$376TAP AIR PORTUGAL
Find Deal
Sat, Nov 8 - Sat, Nov 22
TAP AIR PORTUGAL Logo
6:05 pm - 10:05 amBOS-BCN
10h 00m1 stop
TAP AIR PORTUGAL Logo
10:55 am - 8:10 pmBCN-BOS
15h 15m1 stop
$381TAP AIR PORTUGAL
Find Deal
Sat, Nov 15 - Fri, Nov 21
Iberia Logo
10:40 pm - 11:55 amBOS-BCN
7h 15mnonstop
Iberia Logo
6:10 pm - 8:55 pmBCN-BOS
8h 45mnonstop
$394Iberia
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Sun, Jan 4 - Sat, Jan 24
Delta Logo
9:05 am - 9:20 amBOS-BCN
18h 15m1 stop
Delta Logo
9:30 am - 12:00 pmBCN-BOS
8h 30mnonstop
$403Delta
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Tue, Sep 30 - Wed, Oct 8
Iberia Logo
10:40 pm - 11:55 amBOS-BCN
7h 15mnonstop
Iberia Logo
6:10 pm - 8:55 pmBCN-BOS
8h 45mnonstop
$417Iberia
Find Deal
Mon, Dec 29 - Tue, Jan 6

Air Canada flights from Boston to Barcelona

Our best Air Canada deals on Boston to Barcelona flight tickets
Air Canada
Oct 20
BOS10:40 amBoston Logan Intl
15h 10m
2 stops
BCN7:50 amBarcelona-El Prat
Oct 31
BCN12:35 pmBarcelona-El Prat
26h 22m
2 stops
BOS9:57 amBoston Logan Intl
$368
Find similar
Air Canada
Feb 3
BOS6:55 pmBoston Logan Intl
32h 40m
2 stops
BCN9:35 amBarcelona-El Prat
Feb 10
BCN1:35 pmBarcelona-El Prat
26h 22m
2 stops
BOS9:57 amBoston Logan Intl
$369
Find similar
Air Canada
Nov 25
BOS6:40 pmBoston Logan Intl
32h 55m
1 stop
BCN9:35 amBarcelona-El Prat
Dec 9
BCN5:50 amBarcelona-El Prat
15h 02m
2 stops
BOS2:52 pmBoston Logan Intl
$385
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American Airlines flights from Boston to Barcelona

Our best American Airlines deals on Boston to Barcelona flight tickets
American Airlines
Oct 5
BOS4:35 pmBoston Logan Intl
14h 10m
1 stop
BCN12:45 pmBarcelona-El Prat
Oct 16
BCN6:30 pmBarcelona-El Prat
8h 45m
BOS9:15 pmBoston Logan Intl
$371
Find similar
American Airlines
Oct 13
BOS4:30 pmBoston Logan Intl
13h 15m
1 stop
BCN11:45 amBarcelona-El Prat
Oct 22
BCN6:30 pmBarcelona-El Prat
8h 45m
BOS9:15 pmBoston Logan Intl
$372
Find similar
American Airlines
Oct 1
BOS1:00 pmBoston Logan Intl
11h 45m
1 stop
BCN6:45 amBarcelona-El Prat
Oct 15
BCN6:30 pmBarcelona-El Prat
8h 45m
BOS9:15 pmBoston Logan Intl
$402
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momondo Fare Finder

 
Customize your flight search to find flights from Boston to Barcelona 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 832,500 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Boston to Barcelona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 10/20

10:40 am-7:50 am

2 stops15h 10m

Barcelona-El Prat

Fri 10/31

12:35 pm-9:57 am

2 stops26h 22m

$368

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 2/3

6:55 pm-9:35 am

2 stops32h 40m

Barcelona-El Prat

Tue 2/10

1:35 pm-9:57 am

2 stops26h 22m

$369

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Wed 10/1

5:10 pm-7:50 pm

1 stop20h 40m

Barcelona-El Prat

Thu 10/9

10:15 am-3:55 pm

1 stop11h 40m

$370

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 10/5

4:35 pm-12:45 pm

1 stop14h 10m

Barcelona-El Prat

Thu 10/16

6:30 pm-9:15 pm

Nonstop8h 45m

$371

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 10/13

4:30 pm-11:45 am

1 stop13h 15m

Barcelona-El Prat

Wed 10/22

6:30 pm-9:15 pm

Nonstop8h 45m

$372

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 11/8

6:05 pm-1:45 pm

1 stop13h 40m

Barcelona-El Prat

Sat 11/22

12:35 pm-8:10 pm

1 stop13h 35m

$376

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sat 11/15

6:05 pm-10:05 am

1 stop10h 00m

Barcelona-El Prat

Fri 11/21

10:55 am-8:10 pm

1 stop15h 15m

$381

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Sun 1/4

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Sat 1/24

6:10 pm-8:55 pm

Nonstop8h 45m

$394

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Tue 9/30

9:05 am-9:20 am

1 stop18h 15m

Barcelona-El Prat

Wed 10/8

9:30 am-12:00 pm

Nonstop8h 30m

$403

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

Mon 12/29

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

Tue 1/6

6:10 pm-8:55 pm

Nonstop8h 45m

$417

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

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?

The month of January is, on average, the cheapest month to fly to Barcelona from Boston, with most prices found around $475. If you don’t want to visit Barcelona in January, then you should wait until March to fly from Boston, when ticket prices are also cheap, with an average price of $478.

What is the cheapest day to depart on your flight to Barcelona?

The cheapest day to depart from Boston to Barcelona is on a Tuesday when prices can be found for as low as $547. On the other hand, Friday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $676.

What is the cheapest time of day to depart on your flight to Barcelona?

In the evening is the cheapest time of day to fly from Boston to Barcelona when you can find flight prices for as low as $595. Flying to Barcelona in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $830 on average. Flights to Barcelona from Boston at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

How far in advance should I book a flight to Barcelona?

You are more likely to see cheaper flights to Barcelona from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona for around $562 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona from Boston for as low as $471 on momondo.

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

There are 3 cabin classes available to choose from on Boston Logan Intl to Barcelona flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Boston to Barcelona flight deals and tips

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

Fastest flight time

7h 10m

Direct flights

Every day

Airports in Barcelona

1 airport
The fastest flight from Boston to Barcelona takes 7h 10m
Direct flights go from Boston to Barcelona every day.
There is 1 airport near Barcelona: Barcelona-El Prat (BCN)
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  • How far is Boston Logan Intl to Barcelona by plane?

    Boston Logan Intl and Barcelona are 3641.9 mi apart from one another. A reasonable flight in good conditions will take 7h 15m.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Barcelona.

  • What documentation or ID do you need to fly to Barcelona?

    The travel and health documents you'll need for your trip to Barcelona may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Barcelona. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Boston to Barcelona

Compare and see reviews for airlines that fly from Boston to Barcelona with momondo
Airline
Rating
Free Cancellation
Price
Azores AirlinesPriceFrom $243Free CancellationRating
7.5
73 reviews
Search Azores Airlines flights
PLAYPriceFrom $309Free CancellationRating
7.0
103 reviews
Search PLAY flights
TAP AIR PORTUGALPriceFrom $337Free CancellationRating
7.1
1,975 reviews
Search TAP AIR PORTUGAL flights
FinnairPriceFrom $349Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
LEVELPriceFrom $351Free CancellationRating
0.0
0 reviews
Search LEVEL flights
IcelandairPriceFrom $356Free CancellationRating
7.0
544 reviews
Search Icelandair flights
SWISSPriceFrom $402Free CancellationRating
7.5
1,730 reviews
Search SWISS flights
Air CanadaPriceFrom $405Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Aer LingusPriceFrom $421Free CancellationRating
7.2
1,270 reviews
Search Aer Lingus flights
Air FrancePriceFrom $423Free CancellationRating
7.4
1,469 reviews
Search Air France flights

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.

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Find better results for your trip to Spain

Fly into one of these airports located in Barcelona

Airports listed have a maximum distance of 46.7 mi from Barcelona
Barcelona-El Prat Airport
Girona Costa Brava Airport