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Cheap flights from Boise to Barcelona from $357

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Barcelona departing on 10/12. 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
0 bags

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Find the cheapest flights from Boise to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:15 am - 2:20 pm
BOI
-
BCN
22h 05m
1 stop
United Airlines Logo
12:15 pm - 9:31 pm
BCN
-
BOI
41h 16m
2 stops
$779United Airlines
Mon, Oct 19 - Thu, Oct 22
Air Canada Logo
7:05 pm - 8:00 am
BOI
-
BCN
28h 55m
2 stops
Air Canada Logo
12:15 pm - 12:02 pm
BCN
-
BOI
31h 47m
2 stops
$782Air Canada
Mon, Oct 19 - Thu, Oct 22
Scandinavian Airlines Logo
12:42 pm - 6:10 pm
BOI
-
BCN
21h 28m
2 stops
Scandinavian Airlines Logo
7:00 pm - 6:40 pm
BCN
-
BOI
31h 40m
2 stops
$798Scandinavian Airlines
Tue, Sep 8 - Thu, Sep 17
United Airlines Logo
2:45 pm - 2:20 pm
BOI
-
BCN
15h 35m
1 stop
United Airlines Logo
4:10 pm - 11:52 pm
BCN
-
BOI
15h 42m
1 stop
$799United Airlines
Mon, Oct 19 - Thu, Oct 22
Air Canada Logo
5:00 am - 8:00 am
BOI
-
BCN
19h 00m
2 stops
Air Canada Logo
12:15 pm - 5:58 pm
BCN
-
BOI
37h 43m
2 stops
$852Air Canada
Mon, Sep 7 - Fri, Sep 18
United Airlines Logo
12:24 pm - 1:15 pm
BOI
-
BCN
16h 51m
1 stop
United Airlines Logo
1:15 pm - 11:26 am
BCN
-
BOI
30h 11m
2 stops
$854United Airlines
Mon, Sep 7 - Fri, Sep 18
Air Canada Logo
7:05 pm - 8:00 am
BOI
-
BCN
52h 55m
2 stops
Air Canada Logo
12:15 pm - 9:37 pm
BCN
-
BOI
41h 22m
2 stops
$858Air Canada
Fri, Sep 11 - Tue, Sep 22
United Airlines Logo
7:05 pm - 2:20 pm
BOI
-
BCN
35h 15m
1 stop
United Airlines Logo
1:15 pm - 11:26 am
BCN
-
BOI
30h 11m
2 stops
$860United Airlines
Sat, Sep 12 - Fri, Sep 18
United Airlines Logo
2:05 pm - 2:20 pm
BOI
-
BCN
16h 15m
1 stop
United Airlines Logo
12:15 pm - 10:53 pm
BCN
-
BOI
42h 38m
2 stops
$861United Airlines
Mon, Aug 10 - Fri, Aug 21
Air Canada Logo
7:05 pm - 8:00 am
BOI
-
BCN
28h 55m
2 stops
Air Canada Logo
12:15 pm - 9:37 pm
BCN
-
BOI
41h 22m
2 stops
$864Air Canada
Mon, Aug 10 - Fri, Aug 21

American Airlines flights from Boise to Barcelona-El Prat Airport

Our best American Airlines deals on Boise to Barcelona-El Prat Airport flight tickets
American Airlines
Aug 9
BOI3:16 pmBoise Air Term. Gowen Fld
17h 49m
2 stops
BCN5:05 pmBarcelona-El Prat
Aug 20
BCN10:45 amBarcelona-El Prat
19h 35m
1 stop
BOI10:20 pmBoise Air Term. Gowen Fld
$878
American Airlines
Aug 9
BOI6:44 amBoise Air Term. Gowen Fld
19h 26m
1 stop
BCN10:10 amBarcelona-El Prat
Aug 20
BCN10:45 amBarcelona-El Prat
19h 35m
1 stop
BOI10:20 pmBoise Air Term. Gowen Fld
$881
American Airlines
Aug 4
BOI12:15 pmBoise Air Term. Gowen Fld
18h 00m
2 stops
BCN2:15 pmBarcelona-El Prat
Aug 18
BCN10:45 amBarcelona-El Prat
19h 35m
1 stop
BOI10:20 pmBoise Air Term. Gowen Fld
$886

Lufthansa flights from Boise to Barcelona-El Prat Airport

Our best Lufthansa deals on Boise to Barcelona-El Prat Airport flight tickets
Lufthansa
Aug 10
BOI10:35 amBoise Air Term. Gowen Fld
19h 45m
1 stop
BCN2:20 pmBarcelona-El Prat
Aug 21
BCN3:15 pmBarcelona-El Prat
15h 38m
1 stop
BOI10:53 pmBoise Air Term. Gowen Fld
$880
Lufthansa
Sep 10
BOI12:28 pmBoise Air Term. Gowen Fld
16h 47m
1 stop
BCN1:15 pmBarcelona-El Prat
Sep 18
BCN12:15 pmBarcelona-El Prat
33h 20m
2 stops
BOI1:35 pmBoise Air Term. Gowen Fld
$909
Lufthansa
Aug 6
BOI2:41 pmBoise Air Term. Gowen Fld
23h 44m
2 stops
BCN10:25 pmBarcelona-El Prat
Aug 21
BCN3:15 pmBarcelona-El Prat
15h 38m
1 stop
BOI10:53 pmBoise Air Term. Gowen Fld
$921

momondo Fare Finder

 
Customize your flight search to find flights from Boise 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 May 29, 2026.
Use the filters below to find and compare flights from Boise to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 10/19

8:15 am-2:20 pm

1 stop22h 05m

Barcelona-El Prat

Thu 10/22

12:15 pm-9:31 pm

2 stops41h 16m

$779

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 10/19

7:05 pm-8:00 am

2 stops28h 55m

Barcelona-El Prat

Thu 10/22

12:15 pm-12:02 pm

2 stops31h 47m

$782

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 9/8

12:42 pm-6:10 pm

2 stops21h 28m

Barcelona-El Prat

Thu 9/17

7:00 pm-6:40 pm

2 stops31h 40m

$798
Quickest round-trip

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 10/19

2:45 pm-2:20 pm

1 stop15h 35m

Barcelona-El Prat

Thu 10/22

4:10 pm-11:52 pm

1 stop15h 42m

$799

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 9/7

5:00 am-8:00 am

2 stops19h 00m

Barcelona-El Prat

Fri 9/18

12:15 pm-5:58 pm

2 stops37h 43m

$852

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 9/7

12:24 pm-1:15 pm

1 stop16h 51m

Barcelona-El Prat

Fri 9/18

1:15 pm-11:26 am

2 stops30h 11m

$854

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 9/11

7:05 pm-8:00 am

2 stops52h 55m

Barcelona-El Prat

Tue 9/22

12:15 pm-9:37 pm

2 stops41h 22m

$858

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 9/12

7:05 pm-2:20 pm

1 stop35h 15m

Barcelona-El Prat

Fri 9/18

1:15 pm-11:26 am

2 stops30h 11m

$860

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 8/10

2:05 pm-2:20 pm

1 stop16h 15m

Barcelona-El Prat

Fri 8/21

12:15 pm-10:53 pm

2 stops42h 38m

$861

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 8/10

7:05 pm-8:00 am

2 stops28h 55m

Barcelona-El Prat

Fri 8/21

12:15 pm-9:37 pm

2 stops41h 22m

$864

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 Boise 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 typical price of a round-trip flight between Boise and Barcelona-El Prat Airport?

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

The cheapest month to fly to Barcelona-El Prat Airport from Boise is in February. Flight prices, which tend to average around $484, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Barcelona-El Prat Airport from Boise during January instead. Flights to Barcelona-El Prat Airport in January, while not as cheap as those in February, still average around $583.

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

You could potentially save up to 37% on your flight if you consider stops on a Boise to Barcelona-El Prat Airport flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Boise 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 Boise to Barcelona-El Prat Airport (BOI to BCN) flight deals and tips

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

Fastest flight time

16h 15m

Direct flights

None
The fastest flight from Boise to Barcelona-El Prat Airport takes 16h 15m
There are no direct flights from Boise to Barcelona-El Prat Airport. There are no popular flight routes from Boise to Barcelona-El Prat Airport.
Search flight deals

Frequently asked questions about flying from Boise to Barcelona-El Prat Airport

  • How far is Boise Air Term. Gowen Fld to Barcelona-El Prat by plane?

    There are 5427.8 mi between Boise Air Term. Gowen Fld and Barcelona-El Prat. Flights usually cover this in 16h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Barcelona-El Prat Airport?

    Prices for flights from Boise Air Term. Gowen Fld Airport to Barcelona-El Prat Airport were last updated today.

  • How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Barcelona-El Prat Airport?

  • How old do you have to be to fly from Boise Air Term. Gowen Fld 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 Boise Air Term. Gowen Fld 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 airline from Boise to Barcelona-El Prat Airport?

Best airlines flying from Boise to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from Boise to Barcelona-El Prat Airport with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom $483Free CancellationRating
7.0
3,222 reviews
Search Iberia flights
United AirlinesPriceFrom $498Free CancellationRating
7.4
9,766 reviews
Search United Airlines flights
DeltaPriceFrom $599Free CancellationRating
7.9
8,419 reviews
Search Delta flights
American AirlinesPriceFrom $751Free CancellationRating
7.1
11,644 reviews
Search American Airlines flights
Air CanadaPriceFrom $856Free CancellationRating
7.1
11,101 reviews
Search Air Canada flights

Traveling to a place near Barcelona?

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

Why use momondo?

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

Finding the right flight to Barcelona from Boise is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Barcelona quick and easy, saving you time and money.

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

Flights from Boise 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 Boise to Barcelona?

Once you have performed a search for Boise to Barcelona flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Barcelona from Boise 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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