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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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boise to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:52 am - 10:10 pm
BOI
-
BCN
27h 18m
2 stops
Multiple Airlines Logo
8:00 am - 10:27 pm
BCN
-
BOI
22h 27m
2 stops
$766Multiple Airlines
Wed, Aug 12 - Wed, Aug 26
American Airlines Logo
1:25 pm - 4:05 pm
BOI
-
BCN
18h 40m
2 stops
American Airlines Logo
12:00 pm - 11:39 pm
BCN
-
BOI
19h 39m
2 stops
$770American Airlines
Sun, Dec 6 - Thu, Dec 10
Iberia Logo
7:00 am - 8:50 am
BOI
-
BCN
17h 50m
1 stop
Iberia Logo
8:50 am - 10:03 pm
BCN
-
BOI
21h 13m
2 stops
$780Iberia
Tue, Nov 3 - Wed, Nov 11
Iberia Logo
7:00 am - 12:45 pm
BOI
-
BCN
21h 45m
2 stops
Iberia Logo
9:45 am - 10:03 pm
BCN
-
BOI
20h 18m
2 stops
$789Iberia
Tue, Nov 3 - Wed, Nov 11
United Airlines Logo
8:40 am - 1:10 pm
BOI
-
BCN
20h 30m
1 stop
United Airlines Logo
3:05 pm - 11:06 pm
BCN
-
BOI
16h 01m
1 stop
$799United Airlines
Tue, Nov 3 - Wed, Nov 11
United Airlines Logo
6:55 pm - 9:00 am
BOI
-
BCN
30h 05m
2 stops
United Airlines Logo
10:30 am - 9:16 pm
BCN
-
BOI
18h 46m
2 stops
$804United Airlines
Sun, Dec 6 - Wed, Dec 9
Multiple Airlines Logo
4:05 pm - 9:35 am
BOI
-
BCN
33h 30m
2 stops
Multiple Airlines Logo
9:55 am - 9:16 pm
BCN
-
BOI
19h 21m
2 stops
$811Multiple Airlines
Tue, Nov 3 - Wed, Nov 11
Multiple Airlines Logo
10:52 am - 10:10 pm
BOI
-
BCN
27h 18m
2 stops
Multiple Airlines Logo
10:15 am - 10:33 pm
BCN
-
BOI
20h 18m
2 stops
$827Multiple Airlines
Mon, Aug 10 - Fri, Aug 21
Multiple Airlines Logo
10:52 am - 10:10 pm
BOI
-
BCN
27h 18m
2 stops
Multiple Airlines Logo
8:00 am - 10:27 pm
BCN
-
BOI
22h 27m
2 stops
$849Multiple Airlines
Sun, Aug 9 - Thu, Aug 20
Finnair Logo
3:10 pm - 8:05 pm
BOI
-
BCN
20h 55m
2 stops
Finnair Logo
10:45 am - 10:11 pm
BCN
-
BOI
19h 26m
1 stop
$850Finnair
Mon, Aug 3 - Wed, Aug 19

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American Airlines flights from Boise to Barcelona

Our best American Airlines deals on Boise to Barcelona flight tickets
American Airlines
Dec 6
BOI1:25 pmBoise Air Term. Gowen Fld
18h 40m
2 stops
BCN4:05 pmBarcelona-El Prat
Dec 10
BCN12:00 pmBarcelona-El Prat
19h 39m
2 stops
BOI11:39 pmBoise Air Term. Gowen Fld
$770
American Airlines
Aug 6
BOI3:16 pmBoise Air Term. Gowen Fld
19h 04m
2 stops
BCN6:20 pmBarcelona-El Prat
Aug 21
BCN10:45 amBarcelona-El Prat
19h 26m
1 stop
BOI10:11 pmBoise Air Term. Gowen Fld
$927
American Airlines
Aug 6
BOI3:16 pmBoise Air Term. Gowen Fld
19h 04m
2 stops
BCN6:20 pmBarcelona-El Prat
Aug 21
BCN10:45 amBarcelona-El Prat
19h 26m
1 stop
BOI10:11 pmBoise Air Term. Gowen Fld
$928

Finnair flights from Boise to Barcelona

Our best Finnair deals on Boise to Barcelona flight tickets
Finnair
Aug 3
BOI3:10 pmBoise Air Term. Gowen Fld
20h 55m
2 stops
BCN8:05 pmBarcelona-El Prat
Aug 19
BCN10:45 amBarcelona-El Prat
19h 26m
1 stop
BOI10:11 pmBoise Air Term. Gowen Fld
$850
Finnair
Aug 10
BOI6:44 amBoise Air Term. Gowen Fld
19h 26m
1 stop
BCN10:10 amBarcelona-El Prat
Aug 21
BCN10:45 amBarcelona-El Prat
19h 26m
1 stop
BOI10:11 pmBoise Air Term. Gowen Fld
$881

momondo Fare Finder

 
Customize your flight search to find flights from Boise 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 June 17, 2026.
Use the filters below to find and compare flights from Boise to Barcelona 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

Wed 8/12

10:52 am-10:10 pm

2 stops27h 18m

Barcelona-El Prat

Wed 8/26

8:00 am-10:27 pm

2 stops22h 27m

$766

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 12/6

1:25 pm-4:05 pm

2 stops18h 40m

Barcelona-El Prat

Thu 12/10

12:00 pm-11:39 pm

2 stops19h 39m

$770

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 11/3

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Wed 11/11

8:50 am-10:03 pm

2 stops21h 13m

$780

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 11/3

7:00 am-12:45 pm

2 stops21h 45m

Barcelona-El Prat

Wed 11/11

9:45 am-10:03 pm

2 stops20h 18m

$789
Quickest round-trip

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 11/3

8:40 am-1:10 pm

1 stop20h 30m

Barcelona-El Prat

Wed 11/11

3:05 pm-11:06 pm

1 stop16h 01m

$799

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 12/6

6:55 pm-9:00 am

2 stops30h 05m

Barcelona-El Prat

Wed 12/9

10:30 am-9:16 pm

2 stops18h 46m

$804

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 11/3

4:05 pm-9:35 am

2 stops33h 30m

Barcelona-El Prat

Wed 11/11

9:55 am-9:16 pm

2 stops19h 21m

$811

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 8/10

10:52 am-10:10 pm

2 stops27h 18m

Barcelona-El Prat

Fri 8/21

10:15 am-10:33 pm

2 stops20h 18m

$827

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 8/9

10:52 am-10:10 pm

2 stops27h 18m

Barcelona-El Prat

Thu 8/20

8:00 am-10:27 pm

2 stops22h 27m

$849

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 8/3

3:10 pm-8:05 pm

2 stops20h 55m

Barcelona-El Prat

Wed 8/19

10:45 am-10:11 pm

1 stop19h 26m

$850

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

What is the cheapest month to fly to Barcelona?

The month of February is, on average, the cheapest month to fly to Barcelona from Boise, with most prices found around $467. If you don’t want to visit Barcelona in February, then you should wait until January to fly from Boise, when ticket prices are also cheap, with an average price of $492.

Cheap Boise to Barcelona flight deals and tips

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

Fastest flight time

14h 47m

Direct flights

None
The fastest flight from Boise to Barcelona takes 14h 47m
There are no direct flights from Boise to Barcelona. There are no popular flight routes from Boise to Barcelona.
Search flight deals

Frequently asked questions about flying from Boise to Barcelona

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

    The straight-line distance from Boise Air Term. Gowen Fld to Barcelona is 5426.4 mi. By plane, this route typically takes 14h 47m.

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

    Prices for flights from Boise Air Term. Gowen Fld Airport to Barcelona refresh daily.

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

  • How old do you have to be to fly from Boise Air Term. Gowen Fld 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 Boise Air Term. Gowen Fld Airport to Barcelona.

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

    The required travel and health documents for your Barcelona 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. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Boise to Barcelona

Compare and see reviews for airlines that fly from Boise to Barcelona with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom $483Free CancellationRating
7.0
3,238 reviews
Search Iberia flights
United AirlinesPriceFrom $498Free CancellationRating
7.4
9,852 reviews
Search United Airlines flights
DeltaPriceFrom $599Free CancellationRating
7.8
8,409 reviews
Search Delta flights
Air CanadaPriceFrom $856Free CancellationRating
7.1
11,208 reviews
Search Air Canada flights

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?

Yes. momondo enables you to select and highlight flights to Barcelona from Boise with this policy.

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

momondo helps you find the best flight between Boise and Barcelona by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Boise to Barcelona flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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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