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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.
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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
12:23 pm - 1:15 pm
BOI
-
BCN
16h 52m
1 stop
United Airlines Logo
6:40 am - 9:16 pm
BCN
-
BOI
22h 36m
2 stops
$807United Airlines
Mon, Sep 21 - Thu, Oct 15
United Airlines Logo
11:45 am - 2:20 pm
BOI
-
BCN
18h 35m
1 stop
United Airlines Logo
10:30 am - 11:59 pm
BCN
-
BOI
20h 29m
2 stops
$808United Airlines
Mon, Oct 5 - Wed, Oct 28
United Airlines Logo
12:23 pm - 1:15 pm
BOI
-
BCN
16h 52m
1 stop
United Airlines Logo
4:10 pm - 4:49 pm
BCN
-
BOI
32h 39m
1 stop
$809United Airlines
Mon, Sep 21 - Fri, Oct 16
United Airlines Logo
5:00 am - 8:00 am
BOI
-
BCN
19h 00m
2 stops
United Airlines Logo
8:00 am - 5:55 pm
BCN
-
BOI
17h 55m
2 stops
$811United Airlines
Tue, Sep 29 - Tue, Oct 20
United Airlines Logo
6:30 am - 8:00 am
BOI
-
BCN
17h 30m
2 stops
United Airlines Logo
4:10 pm - 4:49 pm
BCN
-
BOI
32h 39m
1 stop
$812United Airlines
Tue, Sep 22 - Fri, Oct 16
United Airlines Logo
7:01 pm - 2:20 pm
BOI
-
BCN
35h 19m
1 stop
United Airlines Logo
6:40 am - 9:16 pm
BCN
-
BOI
22h 36m
2 stops
$813United Airlines
Sun, Sep 20 - Thu, Oct 15
United Airlines Logo
6:55 pm - 2:20 pm
BOI
-
BCN
35h 25m
1 stop
United Airlines Logo
3:05 pm - 9:43 am
BCN
-
BOI
25h 38m
2 stops
$814United Airlines
Sun, Oct 4 - Fri, Oct 30
United Airlines Logo
7:01 pm - 2:20 pm
BOI
-
BCN
35h 19m
1 stop
United Airlines Logo
4:10 pm - 4:49 pm
BCN
-
BOI
32h 39m
1 stop
$815United Airlines
Sun, Sep 20 - Fri, Oct 16
Air Canada Logo
6:30 am - 8:00 am
BOI
-
BCN
17h 30m
2 stops
Air Canada Logo
1:15 pm - 1:30 pm
BCN
-
BOI
32h 15m
2 stops
$821Air Canada
Tue, Sep 22 - Tue, Oct 13
Air Canada Logo
5:44 pm - 8:00 am
BOI
-
BCN
30h 16m
2 stops
Air Canada Logo
12:15 pm - 5:55 pm
BCN
-
BOI
37h 40m
2 stops
$827Air Canada
Sat, Sep 19 - Thu, Oct 15

United Airlines flights from Boise to Barcelona

Our best United Airlines deals on Boise to Barcelona flight tickets
United Airlines
Sep 2
BOI10:37 amBoise Air Term. Gowen Fld
23h 38m
2 stops
BCN6:15 pmBarcelona-El Prat
Sep 11
BCN1:15 pmBarcelona-El Prat
30h 10m
2 stops
BOI11:25 amBoise Air Term. Gowen Fld
$887
United Airlines
Sep 5
BOI7:01 pmBoise Air Term. Gowen Fld
35h 19m
1 stop
BCN2:20 pmBarcelona-El Prat
Sep 11
BCN1:15 pmBarcelona-El Prat
32h 20m
2 stops
BOI1:35 pmBoise Air Term. Gowen Fld
$888
United Airlines
Sep 2
BOI10:37 amBoise Air Term. Gowen Fld
23h 38m
2 stops
BCN6:15 pmBarcelona-El Prat
Sep 11
BCN4:10 pmBarcelona-El Prat
15h 40m
1 stop
BOI11:50 pmBoise Air Term. Gowen Fld
$902

Air Canada flights from Boise to Barcelona

Our best Air Canada deals on Boise to Barcelona flight tickets
Air Canada
Sep 5
BOI12:23 pmBoise Air Term. Gowen Fld
36h 57m
2 stops
BCN9:20 amBarcelona-El Prat
Sep 11
BCN1:15 pmBarcelona-El Prat
35h 33m
2 stops
BOI4:48 pmBoise Air Term. Gowen Fld
$890
Air Canada
Sep 4
BOI7:01 pmBoise Air Term. Gowen Fld
54h 19m
2 stops
BCN9:20 amBarcelona-El Prat
Sep 11
BCN1:15 pmBarcelona-El Prat
32h 20m
2 stops
BOI1:35 pmBoise Air Term. Gowen Fld
$896
Air Canada
Sep 5
BOI10:37 amBoise Air Term. Gowen Fld
38h 43m
2 stops
BCN9:20 amBarcelona-El Prat
Sep 10
BCN1:15 pmBarcelona-El Prat
53h 45m
2 stops
BOI11:00 amBoise Air Term. Gowen Fld
$919

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 April 15, 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

Mon 9/21

12:23 pm-1:15 pm

1 stop16h 52m

Barcelona-El Prat

Thu 10/15

6:40 am-9:16 pm

2 stops22h 36m

$807

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 10/5

11:45 am-2:20 pm

1 stop18h 35m

Barcelona-El Prat

Wed 10/28

10:30 am-11:59 pm

2 stops20h 29m

$808

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 9/21

12:23 pm-1:15 pm

1 stop16h 52m

Barcelona-El Prat

Fri 10/16

4:10 pm-4:49 pm

1 stop32h 39m

$809
Quickest round-trip

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 9/29

5:00 am-8:00 am

2 stops19h 00m

Barcelona-El Prat

Tue 10/20

8:00 am-5:55 pm

2 stops17h 55m

$811

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 9/22

6:30 am-8:00 am

2 stops17h 30m

Barcelona-El Prat

Fri 10/16

4:10 pm-4:49 pm

1 stop32h 39m

$812

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 9/20

7:01 pm-2:20 pm

1 stop35h 19m

Barcelona-El Prat

Thu 10/15

6:40 am-9:16 pm

2 stops22h 36m

$813

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/4

6:55 pm-2:20 pm

1 stop35h 25m

Barcelona-El Prat

Fri 10/30

3:05 pm-9:43 am

2 stops25h 38m

$814

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 9/20

7:01 pm-2:20 pm

1 stop35h 19m

Barcelona-El Prat

Fri 10/16

4:10 pm-4:49 pm

1 stop32h 39m

$815

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 9/22

6:30 am-8:00 am

2 stops17h 30m

Barcelona-El Prat

Tue 10/13

1:15 pm-1:30 pm

2 stops32h 15m

$821

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 9/19

5:44 pm-8:00 am

2 stops30h 16m

Barcelona-El Prat

Thu 10/15

12:15 pm-5:55 pm

2 stops37h 40m

$827

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 $484. 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 $583.

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

16h 34m

Direct flights

None
The fastest flight from Boise to Barcelona takes 16h 34m
There are no direct flights from Boise to Barcelona. There are no popular flight routes from Boise to Barcelona.
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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 16h 34m.

  • 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
3,180 reviews
Search Iberia flights
United AirlinesPriceFrom $498Free CancellationRating
7.4
9,592 reviews
Search United Airlines flights
DeltaPriceFrom $599Free CancellationRating
7.9
8,407 reviews
Search Delta flights
American AirlinesPriceFrom $634Free CancellationRating
7.1
11,582 reviews
Search American Airlines flights
Air CanadaPriceFrom $651Free CancellationRating
7.1
10,930 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