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Cheap flights from Boise to Barcelona from $443

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 4/5. 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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Find the cheapest flights from Boise to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Finnair Logo
7:20 am - 8:50 am
BOI
-
BCN
17h 30m1 stop
Finnair Logo
10:40 am - 7:25 pm
BCN
-
BOI
16h 45m1 stop
$474Finnair
Thu, Jan 22 - Fri, Feb 6
Lufthansa Logo
2:40 pm - 5:35 pm
BOI
-
BCN
18h 55m2 stops
Lufthansa Logo
6:50 am - 9:32 pm
BCN
-
BOI
22h 42m2 stops
$476Lufthansa
Thu, Feb 19 - Wed, Feb 25
Multiple Airlines Logo
4:02 pm - 4:30 pm
BOI
-
BCN
16h 28m2 stops
Multiple Airlines Logo
10:40 am - 10:36 pm
BCN
-
BOI
19h 56m1 stop
$481Multiple Airlines
Fri, Feb 20 - Fri, Feb 27
Multiple Airlines Logo
7:00 am - 8:50 am
BOI
-
BCN
17h 50m1 stop
Multiple Airlines Logo
10:40 am - 10:36 pm
BCN
-
BOI
19h 56m1 stop
$484Multiple Airlines
Fri, Feb 20 - Fri, Feb 27
Delta Logo
5:50 am - 8:00 am
BOI
-
BCN
18h 10m2 stops
Delta Logo
10:15 am - 11:45 pm
BCN
-
BOI
21h 30m2 stops
$489Delta
Fri, Feb 20 - Fri, Feb 27
United Airlines Logo
8:15 am - 9:35 am
BOI
-
BCN
17h 20m2 stops
United Airlines Logo
9:55 am - 11:38 pm
BCN
-
BOI
21h 43m2 stops
$492United Airlines
Sun, Feb 8 - Sun, Feb 15
United Airlines Logo
10:28 am - 9:35 am
BOI
-
BCN
39h 07m2 stops
United Airlines Logo
6:45 am - 11:33 am
BCN
-
BOI
36h 48m2 stops
$493United Airlines
Thu, Jan 22 - Fri, Feb 6
Delta Logo
11:30 pm - 7:40 am
BOI
-
BCN
25h 10m1 stop
Delta Logo
9:15 am - 9:55 am
BCN
-
BOI
31h 40m2 stops
$494Delta
Mon, Mar 9 - Mon, Mar 16
Delta Logo
11:30 pm - 7:40 am
BOI
-
BCN
25h 10m1 stop
Delta Logo
9:45 am - 12:53 pm
BCN
-
BOI
34h 08m1 stop
$495Delta
Mon, Mar 9 - Mon, Mar 16
Iberia Logo
7:20 am - 8:50 am
BOI
-
BCN
17h 30m1 stop
Iberia Logo
10:10 am - 10:36 pm
BCN
-
BOI
44h 26m2 stops
$500Iberia
Sun, Feb 8 - Sun, Feb 15

Finnair flights from Boise to Barcelona

Our best Finnair deals on Boise to Barcelona flight tickets
Finnair
Jan 22
BOI7:20 amBoise Air Term. Gowen Fld
17h 30m
1 stop
BCN8:50 amBarcelona-El Prat
Feb 6
BCN10:40 amBarcelona-El Prat
16h 45m
1 stop
BOI7:25 pmBoise Air Term. Gowen Fld
$474
Find similar
Finnair
Apr 19
BOI1:25 pmBoise Air Term. Gowen Fld
25h 25m
2 stops
BCN10:50 pmBarcelona-El Prat
May 3
BCN10:45 amBarcelona-El Prat
18h 22m
1 stop
BOI9:07 pmBoise Air Term. Gowen Fld
$724
Find similar
Finnair
Mar 17
BOI7:00 amBoise Air Term. Gowen Fld
17h 50m
1 stop
BCN7:50 amBarcelona-El Prat
Mar 23
BCN10:05 amBarcelona-El Prat
43h 31m
2 stops
BOI10:36 pmBoise Air Term. Gowen Fld
$884
Find similar

Iberia flights from Boise to Barcelona

Our best Iberia deals on Boise to Barcelona flight tickets
Iberia
Feb 8
BOI7:20 amBoise Air Term. Gowen Fld
17h 30m
1 stop
BCN8:50 amBarcelona-El Prat
Feb 15
BCN10:10 amBarcelona-El Prat
44h 26m
2 stops
BOI10:36 pmBoise Air Term. Gowen Fld
$500
Find similar
Iberia
Feb 16
BOI7:00 amBoise Air Term. Gowen Fld
31h 50m
2 stops
BCN10:50 pmBarcelona-El Prat
Feb 22
BCN10:40 amBarcelona-El Prat
19h 56m
1 stop
BOI10:36 pmBoise Air Term. Gowen Fld
$638
Find similar
Iberia
Apr 19
BOI7:31 amBoise Air Term. Gowen Fld
27h 59m
2 stops
BCN7:30 pmBarcelona-El Prat
May 3
BCN1:35 pmBarcelona-El Prat
41h 26m
2 stops
BOI11:01 pmBoise Air Term. Gowen Fld
$736
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 December 26, 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

Thu 1/22

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Fri 2/6

10:40 am-7:25 pm

1 stop16h 45m

$474

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Thu 2/19

2:40 pm-5:35 pm

2 stops18h 55m

Barcelona-El Prat

Wed 2/25

6:50 am-9:32 pm

2 stops22h 42m

$476

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

4:02 pm-4:30 pm

2 stops16h 28m

Barcelona-El Prat

Fri 2/27

10:40 am-10:36 pm

1 stop19h 56m

$481

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Fri 2/27

10:40 am-10:36 pm

1 stop19h 56m

$484

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

5:50 am-8:00 am

2 stops18h 10m

Barcelona-El Prat

Fri 2/27

10:15 am-11:45 pm

2 stops21h 30m

$489

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 2/8

8:15 am-9:35 am

2 stops17h 20m

Barcelona-El Prat

Sun 2/15

9:55 am-11:38 pm

2 stops21h 43m

$492

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Thu 1/22

10:28 am-9:35 am

2 stops39h 07m

Barcelona-El Prat

Fri 2/6

6:45 am-11:33 am

2 stops36h 48m

$493

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 3/9

11:30 pm-7:40 am

1 stop25h 10m

Barcelona-El Prat

Mon 3/16

9:15 am-9:55 am

2 stops31h 40m

$494

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 3/9

11:30 pm-7:40 am

1 stop25h 10m

Barcelona-El Prat

Mon 3/16

9:45 am-12:53 pm

1 stop34h 08m

$495

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 2/8

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Sun 2/15

10:10 am-10:36 pm

2 stops44h 26m

$500

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

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 $559. 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 $631.

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

Fastest flight time

14h 40m

Direct flights

None
The fastest flight from Boise to Barcelona takes 14h 40m
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 14h 40m.

  • 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 $552Free CancellationRating
7.4
9,115 reviews
Search United Airlines flights
FinnairPriceFrom $637Free CancellationRating
7.6
1,339 reviews
Search Finnair flights
American AirlinesPriceFrom $641Free CancellationRating
7.2
11,060 reviews
Search American Airlines flights
Air CanadaPriceFrom $651Free CancellationRating
7.1
10,559 reviews
Search Air Canada flights
DeltaPriceFrom $726Free CancellationRating
7.9
8,012 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