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Cheap flights from Boise to Barcelona from $393

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 3/24. 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.
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
Mon, Feb 16 - Sun, Feb 22
Multiple Airlines Logo
11:54 am - 11:35 am
BOI
-
BCN
15h 41m2 stops
Multiple Airlines Logo
10:40 am - 11:34 pm
BCN
-
BOI
20h 54m2 stops
$485Multiple Airlines
Fri, Feb 20 - Fri, Feb 27
Multiple Airlines Logo
7:00 am - 8:50 am
BOI
-
BCN
17h 50m1 stop
Multiple Airlines Logo
3:05 pm - 12:46 pm
BCN
-
BOI
29h 41m2 stops
$489Multiple Airlines
Mon, Feb 16 - Sun, Feb 22
United Airlines Logo
5:30 pm - 8:35 am
BOI
-
BCN
32h 05m2 stops
United Airlines Logo
12:35 pm - 1:32 pm
BCN
-
BOI
31h 57m2 stops
$491United Airlines
Mon, Mar 9 - Mon, Mar 16
Delta Logo
9:15 am - 3:00 pm
BOI
-
BCN
21h 45m2 stops
Delta Logo
10:15 am - 12:55 pm
BCN
-
BOI
34h 40m2 stops
$492Delta
Fri, Jan 30 - Thu, Feb 5
Multiple Airlines Logo
7:00 am - 7:55 pm
BOI
-
BCN
28h 55m2 stops
Multiple Airlines Logo
3:05 pm - 12:46 pm
BCN
-
BOI
29h 41m2 stops
$497Multiple Airlines
Mon, Feb 16 - Sun, Feb 22
Multiple Airlines Logo
1:39 pm - 6:05 am
BOI
-
BCN
33h 26m2 stops
Multiple Airlines Logo
10:40 am - 10:36 pm
BCN
-
BOI
18h 56m1 stop
$499Multiple Airlines
Mon, Mar 9 - Mon, Mar 16
Iberia Logo
7:20 am - 8:50 am
BOI
-
BCN
17h 30m1 stop
Iberia Logo
10:40 am - 1:08 pm
BCN
-
BOI
34h 28m1 stop
$501Iberia
Sat, Jan 31 - Sat, Feb 7
United Airlines Logo
6:10 am - 5:35 pm
BOI
-
BCN
27h 25m2 stops
United Airlines Logo
1:35 pm - 1:35 pm
BCN
-
BOI
32h 00m2 stops
$595United Airlines
Fri, Jan 30 - Tue, Feb 3

KLM flights from Boise to Barcelona

Our best KLM deals on Boise to Barcelona flight tickets
KLM
Dec 21
BOI1:55 pmBoise Air Term. Gowen Fld
34h 45m
1 stop
BCN8:40 amBarcelona-El Prat
Jan 7
BCN6:00 amBarcelona-El Prat
20h 28m
2 stops
BOI6:28 pmBoise Air Term. Gowen Fld
$1,911
Find similar
KLM
Dec 21
BOI1:55 pmBoise Air Term. Gowen Fld
34h 45m
1 stop
BCN8:40 amBarcelona-El Prat
Jan 12
BCN6:00 amBarcelona-El Prat
22h 55m
2 stops
BOI8:55 pmBoise Air Term. Gowen Fld
$1,981
Find similar
KLM
Dec 20
BOI11:47 pmBoise Air Term. Gowen Fld
24h 53m
1 stop
BCN8:40 amBarcelona-El Prat
Dec 29
BCN10:55 amBarcelona-El Prat
19h 42m
1 stop
BOI10:37 pmBoise Air Term. Gowen Fld
$2,893
Find similar

United Airlines flights from Boise to Barcelona

Our best United Airlines deals on Boise to Barcelona flight tickets
United Airlines
Mar 9
BOI5:30 pmBoise Air Term. Gowen Fld
32h 05m
2 stops
BCN8:35 amBarcelona-El Prat
Mar 16
BCN12:35 pmBarcelona-El Prat
39h 54m
2 stops
BOI9:29 pmBoise Air Term. Gowen Fld
$491
Find similar
United Airlines
Jan 30
BOI6:10 amBoise Air Term. Gowen Fld
27h 25m
2 stops
BCN5:35 pmBarcelona-El Prat
Feb 3
BCN1:35 pmBarcelona-El Prat
32h 00m
2 stops
BOI1:35 pmBoise Air Term. Gowen Fld
$595
Find similar
United Airlines
Mar 17
BOI5:30 pmBoise Air Term. Gowen Fld
32h 05m
2 stops
BCN8:35 amBarcelona-El Prat
Mar 23
BCN10:30 amBarcelona-El Prat
30h 36m
2 stops
BOI10:06 amBoise Air Term. Gowen Fld
$692
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 18, 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

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

Mon 2/16

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Sun 2/22

10:40 am-10:36 pm

1 stop19h 56m

$484

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

11:54 am-11:35 am

2 stops15h 41m

Barcelona-El Prat

Fri 2/27

10:40 am-11:34 pm

2 stops20h 54m

$485

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 2/16

7:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Sun 2/22

3:05 pm-12:46 pm

2 stops29h 41m

$489

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 3/9

5:30 pm-8:35 am

2 stops32h 05m

Barcelona-El Prat

Mon 3/16

12:35 pm-1:32 pm

2 stops31h 57m

$491

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 1/30

9:15 am-3:00 pm

2 stops21h 45m

Barcelona-El Prat

Thu 2/5

10:15 am-12:55 pm

2 stops34h 40m

$492

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 2/16

7:00 am-7:55 pm

2 stops28h 55m

Barcelona-El Prat

Sun 2/22

3:05 pm-12:46 pm

2 stops29h 41m

$497

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 3/9

1:39 pm-6:05 am

2 stops33h 26m

Barcelona-El Prat

Mon 3/16

10:40 am-10:36 pm

1 stop18h 56m

$499

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 1/31

7:20 am-8:50 am

1 stop17h 30m

Barcelona-El Prat

Sat 2/7

10:40 am-1:08 pm

1 stop34h 28m

$501

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 1/30

6:10 am-5:35 pm

2 stops27h 25m

Barcelona-El Prat

Tue 2/3

1:35 pm-1:35 pm

2 stops32h 00m

$595

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 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

17h 12m

Direct flights

None
The fastest flight from Boise to Barcelona takes 17h 12m
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 17h 12m.

  • 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
9,092 reviews
Search United Airlines flights
FinnairPriceFrom $637Free CancellationRating
7.6
1,338 reviews
Search Finnair flights
American AirlinesPriceFrom $641Free CancellationRating
7.2
11,055 reviews
Search American Airlines flights
Air CanadaPriceFrom $651Free CancellationRating
7.1
10,534 reviews
Search Air Canada flights
DeltaPriceFrom $726Free CancellationRating
7.9
8,005 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