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Cheap flights from Boston to Barcelona from $201

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 1/11. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
10:45 pm - 11:45 pm
BOS
-
BCN
19h 00m1 stop
TAP AIR PORTUGAL Logo
12:35 pm - 9:10 pm
BCN
-
BOS
13h 35m1 stop
$376TAP AIR PORTUGAL
jue., mar. 5 - sáb., mar. 14
TAP AIR PORTUGAL Logo
6:05 pm - 4:55 pm
BOS
-
BCN
16h 50m1 stop
TAP AIR PORTUGAL Logo
10:40 pm - 8:05 pm
BCN
-
BOS
27h 25m1 stop
$380TAP AIR PORTUGAL
lun., abr. 13 - lun., abr. 20
TAP AIR PORTUGAL Logo
6:05 pm - 8:20 pm
BOS
-
BCN
20h 15m1 stop
TAP AIR PORTUGAL Logo
10:40 pm - 8:05 pm
BCN
-
BOS
27h 25m1 stop
$383TAP AIR PORTUGAL
mar., ene. 20 - lun., abr. 20
LEVEL Logo
10:40 pm - 11:55 am
BOS
-
BCN
7h 15mnonstop
LEVEL Logo
6:10 pm - 8:55 pm
BCN
-
BOS
8h 45mnonstop
$388LEVEL
dom., ene. 25 - sáb., ene. 31
TAP AIR PORTUGAL Logo
6:05 pm - 1:45 pm
BOS
-
BCN
13h 40m1 stop
TAP AIR PORTUGAL Logo
9:10 pm - 2:35 pm
BCN
-
BOS
23h 25m1 stop
$389TAP AIR PORTUGAL
mar., ene. 13 - mar., ene. 20
TAP AIR PORTUGAL Logo
6:05 pm - 1:45 pm
BOS
-
BCN
13h 40m1 stop
TAP AIR PORTUGAL Logo
10:55 am - 8:10 pm
BCN
-
BOS
15h 15m1 stop
$391TAP AIR PORTUGAL
dom., ene. 11 - sáb., ene. 24
TAP AIR PORTUGAL Logo
10:30 pm - 7:20 pm
BOS
-
BCN
14h 50m2 stops
TAP AIR PORTUGAL Logo
6:00 am - 8:20 pm
BCN
-
BOS
20h 20m1 stop
$396TAP AIR PORTUGAL
lun., abr. 6 - lun., abr. 13
Iberia Logo
10:40 pm - 11:55 am
BOS
-
BCN
7h 15mnonstop
Iberia Logo
6:10 pm - 8:55 pm
BCN
-
BOS
8h 45mnonstop
$397Iberia
dom., ene. 18 - sáb., ene. 24
Iberia Logo
10:40 pm - 11:55 am
BOS
-
BCN
7h 15mnonstop
Iberia Logo
6:10 pm - 8:55 pm
BCN
-
BOS
8h 45mnonstop
$398Iberia
dom., ene. 25 - jue., feb. 5
TAP AIR PORTUGAL Logo
6:05 pm - 10:05 am
BOS
-
BCN
10h 00m1 stop
TAP AIR PORTUGAL Logo
6:05 pm - 3:45 pm
BCN
-
BOS
26h 40m1 stop
$399TAP AIR PORTUGAL
vie., feb. 20 - lun., mar. 9

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
Mar 5
BOS10:45 pmBoston Logan Intl
19h 00m
1 stop
BCN11:45 pmBarcelona-El Prat
Mar 14
BCN12:35 pmBarcelona-El Prat
13h 35m
1 stop
BOS9:10 pmBoston Logan Intl
$376
Find similar
TAP AIR PORTUGAL
Apr 13
BOS6:05 pmBoston Logan Intl
16h 50m
1 stop
BCN4:55 pmBarcelona-El Prat
Apr 20
BCN10:40 pmBarcelona-El Prat
27h 25m
1 stop
BOS8:05 pmBoston Logan Intl
$380
Find similar
TAP AIR PORTUGAL
Jan 20
BOS6:05 pmBoston Logan Intl
20h 15m
1 stop
BCN8:20 pmBarcelona-El Prat
Apr 20
BCN10:40 pmBarcelona-El Prat
27h 25m
1 stop
BOS8:05 pmBoston Logan Intl
$383
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
Jan 18
BOS10:40 pmBoston Logan Intl
7h 15m
BCN11:55 amBarcelona-El Prat
Jan 24
BCN6:10 pmBarcelona-El Prat
8h 45m
BOS8:55 pmBoston Logan Intl
$397
Find similar
Iberia
Jan 25
BOS10:40 pmBoston Logan Intl
7h 15m
BCN11:55 amBarcelona-El Prat
Feb 5
BCN6:10 pmBarcelona-El Prat
8h 45m
BOS8:55 pmBoston Logan Intl
$398
Find similar
Iberia
Jan 11
BOS10:40 pmBoston Logan Intl
7h 15m
BCN11:55 amBarcelona-El Prat
Jan 17
BCN6:10 pmBarcelona-El Prat
8h 45m
BOS8:55 pmBoston Logan Intl
$422
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 832,500 searches. Data last updated diciembre 9, 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

jue. 3/5

10:45 pm-11:45 pm

1 stop19h 00m

Barcelona-El Prat

sáb. 3/14

12:35 pm-9:10 pm

1 stop13h 35m

$376

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

lun. 4/13

6:05 pm-4:55 pm

1 stop16h 50m

Barcelona-El Prat

lun. 4/20

10:40 pm-8:05 pm

1 stop27h 25m

$380

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

mar. 1/20

6:05 pm-8:20 pm

1 stop20h 15m

Barcelona-El Prat

lun. 4/20

10:40 pm-8:05 pm

1 stop27h 25m

$383

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

dom. 1/25

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

sáb. 1/31

6:10 pm-8:55 pm

Nonstop8h 45m

$388

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

mar. 1/13

6:05 pm-1:45 pm

1 stop13h 40m

Barcelona-El Prat

mar. 1/20

9:10 pm-2:35 pm

1 stop23h 25m

$389

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

dom. 1/11

6:05 pm-1:45 pm

1 stop13h 40m

Barcelona-El Prat

sáb. 1/24

10:55 am-8:10 pm

1 stop15h 15m

$391

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

lun. 4/6

10:30 pm-7:20 pm

2 stops14h 50m

Barcelona-El Prat

lun. 4/13

6:00 am-8:20 pm

1 stop20h 20m

$396

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

dom. 1/18

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

sáb. 1/24

6:10 pm-8:55 pm

Nonstop8h 45m

$397

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

dom. 1/25

10:40 pm-11:55 am

Nonstop7h 15m

Barcelona-El Prat

jue. 2/5

6:10 pm-8:55 pm

Nonstop8h 45m

$398

BostonBarcelona

BOS - BCN

BOSBCN

Boston Logan Intl

vie. 2/20

6:05 pm-10:05 am

1 stop10h 00m

Barcelona-El Prat

lun. 3/9

6:05 pm-3:45 pm

1 stop26h 40m

$399

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 $474, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Barcelona-El Prat Airport from Boston during October instead. Flights to Barcelona-El Prat Airport in October, while not as cheap as those in September, still average around $486.

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

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Monday when prices can be found for as low as $543. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $670. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

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

Flying to Barcelona-El Prat Airport from Boston in the evening is the least expensive time of day to depart. momondo users have found prices as low as $600 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $830 on average. Flights to Barcelona-El Prat Airport 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-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 $570 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 $493 on momondo.

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

There are 3 cabin classes 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.

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

As of December 2025, prices for Boston to Barcelona-El Prat Airport flights are approximately 26% 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

$250

Fastest flight time

7h 15m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun
The best one-way flight to Barcelona-El Prat Airport from Boston in the past 72 hours is $250. The best round-trip flight deal from Boston to Barcelona-El Prat Airport found on momondo in the last 72 hours is $494.
The fastest flight from Boston to Barcelona-El Prat Airport takes 7h 15m
Direct flights go from Boston to Barcelona-El Prat Airport on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is Iberia.
Search flight deals

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

    There are 3640.3 mi between Boston Logan Intl and Barcelona-El Prat. 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 refresh 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 necessary travel and health documents for your Barcelona-El Prat Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted 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
PLAYPriceFrom $308Free CancellationRating
7.0
103 reviews
Search PLAY flights
TAP AIR PORTUGALPriceFrom $334Free CancellationRating
7.1
2,085 reviews
Search TAP AIR PORTUGAL flights
LEVELPriceFrom $340Free CancellationRating
0.0
0 reviews
Search LEVEL flights
FinnairPriceFrom $349Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
IcelandairPriceFrom $355Free CancellationRating
7.0
588 reviews
Search Icelandair flights
JetBluePriceFrom $394Free CancellationRating
7.2
2,899 reviews
Search JetBlue flights
Air CanadaPriceFrom $399Free CancellationRating
7.1
10,514 reviews
Search Air Canada flights
SWISSPriceFrom $409Free CancellationRating
7.5
1,807 reviews
Search SWISS flights
Air FrancePriceFrom $423Free CancellationRating
7.4
1,502 reviews
Search Air France flights
ITA AirwaysPriceFrom $429Free CancellationRating
6.7
1,098 reviews
Search ITA Airways flights

Traveling to a place near Barcelona?

Book flights to Barcelona if you plan to visit one of these locations
Lloret de Mar
Sitges
Salou
Tossa de Mar
El Prat de Llobregat
Castelldefels
L'Hospitalet de Llobregat
Tarragona
Santa Susanna
Cambrils
Cadaques
Empuriabrava
Calella
Pineda de Mar
Roses
Badalona
Pals
Palafrugell
Tortosa
La Pineda

Why use momondo?

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

It is quick and easy to find Boston to Barcelona flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Barcelona that suits you.

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?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to Barcelona.

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

Price alerts on flights to Barcelona from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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

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