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Cheap flights from Boise to Barcelona from $543

This is the cheapest round-trip 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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Cheap round-trip flights

Air Canada Logo
7:00 am - 9:20 amBOI-BCN
42h 20m2 stops
Air Canada Logo
1:15 pm - 10:30 pmBCN-BOI
41h 15m2 stops
$543Air Canada
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Sun, Oct 12 - Fri, Oct 24
Finnair Logo
7:32 am - 8:50 amBOI-BCN
17h 18m1 stop
Finnair Logo
10:40 am - 9:18 pmBCN-BOI
18h 38m1 stop
$550Finnair
Find Deal
Sun, Jan 25 - Tue, Feb 3
United Airlines Logo
6:15 am - 1:10 pmBOI-BCN
22h 55m2 stops
United Airlines Logo
10:30 am - 1:39 pmBCN-BOI
35h 09m2 stops
$557United Airlines
Find Deal
Mon, Nov 24 - Wed, Dec 3
Logo
2:43 pm - 8:35 amBOI-BCN
34h 52m2 stops
Logo
3:35 pm - 9:16 pmBCN-BOI
36h 41m2 stops
$566
Find Deal
Mon, Mar 9 - Mon, Mar 16
United Airlines Logo
9:45 am - 2:00 pmBOI-BCN
20h 15m1 stop
United Airlines Logo
3:15 pm - 9:24 pmBCN-BOI
38h 09m2 stops
$568United Airlines
Find Deal
Mon, Oct 6 - Wed, Oct 15
United Airlines Logo
5:00 am - 9:35 amBOI-BCN
20h 35m2 stops
United Airlines Logo
6:45 am - 11:44 pmBCN-BOI
24h 59m2 stops
$570United Airlines
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Mon, Nov 24 - Tue, Dec 2
Delta Logo
5:17 am - 8:00 amBOI-BCN
18h 43m2 stops
Delta Logo
9:55 am - 10:36 pmBCN-BOI
20h 41m2 stops
$585Delta
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Sun, Nov 23 - Wed, Dec 3
Logo
7:39 am - 8:50 amBOI-BCN
17h 11m1 stop
Logo
10:40 am - 9:09 pmBCN-BOI
18h 29m1 stop
$603
Find Deal
Fri, Feb 20 - Fri, Feb 27
Delta Logo
5:43 pm - 6:50 pmBOI-BCN
17h 07m2 stops
Delta Logo
6:10 am - 6:51 pmBCN-BOI
20h 41m2 stops
$625Delta
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Wed, Oct 1 - Tue, Oct 7
American Airlines Logo
1:26 pm - 5:15 pmBOI-BCN
19h 49m2 stops
American Airlines Logo
12:20 pm - 10:24 pmBCN-BOI
18h 04m1 stop
$637American Airlines
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Sun, Oct 12 - Fri, Oct 24

Air Canada flights from Boise to Barcelona

Our best Air Canada deals on Boise to Barcelona flight tickets
Air Canada
Sep 21
BOI5:00 amBoise Air Term. Gowen Fld
18h 50m
2 stops
BCN7:50 amBarcelona-El Prat
Oct 7
BCN12:10 pmBarcelona-El Prat
39h 05m
2 stops
BOI7:15 pmBoise Air Term. Gowen Fld
$530
Find similar
Air Canada
Sep 22
BOI5:39 pmBoise Air Term. Gowen Fld
30h 11m
2 stops
BCN7:50 amBarcelona-El Prat
Oct 7
BCN12:10 pmBarcelona-El Prat
43h 34m
2 stops
BOI11:44 pmBoise Air Term. Gowen Fld
$535
Find similar
Air Canada
Sep 23
BOI5:00 amBoise Air Term. Gowen Fld
20h 20m
2 stops
BCN9:20 amBarcelona-El Prat
Oct 7
BCN12:10 pmBarcelona-El Prat
43h 34m
2 stops
BOI11:44 pmBoise Air Term. Gowen Fld
$536
Find similar

United Airlines flights from Boise to Barcelona

Our best United Airlines deals on Boise to Barcelona flight tickets
United Airlines
Sep 23
BOI9:52 amBoise Air Term. Gowen Fld
20h 08m
1 stop
BCN2:00 pmBarcelona-El Prat
Oct 7
BCN4:00 pmBarcelona-El Prat
15h 44m
1 stop
BOI11:44 pmBoise Air Term. Gowen Fld
$553
Find similar
United Airlines
Nov 24
BOI6:15 amBoise Air Term. Gowen Fld
22h 55m
2 stops
BCN1:10 pmBarcelona-El Prat
Dec 3
BCN10:30 amBarcelona-El Prat
35h 09m
2 stops
BOI1:39 pmBoise Air Term. Gowen Fld
$557
Find similar
United Airlines
Sep 22
BOI7:09 pmBoise Air Term. Gowen Fld
34h 51m
1 stop
BCN2:00 pmBarcelona-El Prat
Oct 7
BCN4:00 pmBarcelona-El Prat
15h 44m
1 stop
BOI11:44 pmBoise Air Term. Gowen Fld
$558
Find similar

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 September 15, 2025.
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

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/12

7:00 am-9:20 am

2 stops42h 20m

Barcelona-El Prat

Fri 10/24

1:15 pm-10:30 pm

2 stops41h 15m

$543

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 1/25

7:32 am-8:50 am

1 stop17h 18m

Barcelona-El Prat

Tue 2/3

10:40 am-9:18 pm

1 stop18h 38m

$550

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 11/24

6:15 am-1:10 pm

2 stops22h 55m

Barcelona-El Prat

Wed 12/3

10:30 am-1:39 pm

2 stops35h 09m

$557

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 3/9

2:43 pm-8:35 am

2 stops34h 52m

Barcelona-El Prat

Mon 3/16

3:35 pm-9:16 pm

2 stops36h 41m

$566

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 10/6

9:45 am-2:00 pm

1 stop20h 15m

Barcelona-El Prat

Wed 10/15

3:15 pm-9:24 pm

2 stops38h 09m

$568

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 11/24

5:00 am-9:35 am

2 stops20h 35m

Barcelona-El Prat

Tue 12/2

6:45 am-11:44 pm

2 stops24h 59m

$570

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 11/23

5:17 am-8:00 am

2 stops18h 43m

Barcelona-El Prat

Wed 12/3

9:55 am-10:36 pm

2 stops20h 41m

$585

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

7:39 am-8:50 am

1 stop17h 11m

Barcelona-El Prat

Fri 2/27

10:40 am-9:09 pm

1 stop18h 29m

$603

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Wed 10/1

5:43 pm-6:50 pm

2 stops17h 07m

Barcelona-El Prat

Tue 10/7

6:10 am-6:51 pm

2 stops20h 41m

$625

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/12

1:26 pm-5:15 pm

2 stops19h 49m

Barcelona-El Prat

Fri 10/24

12:20 pm-10:24 pm

1 stop18h 04m

$637

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Barcelona from

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 $634. If you don’t want to visit Barcelona in February, then you should wait until November to fly from Boise, when ticket prices are also cheap, with an average price of $636.

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

The cheapest day to depart from Boise to Barcelona is on a Sunday when prices can be found for as low as $813. On the other hand, Friday is the most expensive day to depart from Boise because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,459.

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 Boise to Barcelona when you can find flight prices for as low as $842. 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 in the morning when prices are $1,010 on average. Flights to Barcelona from Boise in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Boise to Barcelona flight deals and tips

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

Direct flights

None
There are no direct flights from Boise to Barcelona. There are no popular flight routes from Boise to Barcelona.
Search flight deals

  • 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 15h 16m.

  • 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
United AirlinesPriceFrom $587Free CancellationRating
7.4
8,931 reviews
Search United Airlines flights
FinnairPriceFrom $637Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
American AirlinesPriceFrom $641Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $671Free CancellationRating
7.9
7,956 reviews
Search Delta 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