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Cheap flights from Boise to Barcelona from $337

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 10/18. 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

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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.
American Airlines Logo
1:27 pm - 4:30 pmBOI  Boise Air Term. Gowen Fld-BCN Barcelona-El Prat
19h 03m2 stops Chicago O'Hare Intl London Heathrow
American Airlines Logo
12:00 pm - 11:59 pmBCN  Barcelona-El Prat-BOI Boise Air Term. Gowen Fld
19h 59m2 stops Philadelphia Phoenix Sky Harbor Intl
$707American Airlines
Wed, Nov 11 - Thu, Nov 26
American Airlines Logo
7:00 am - 7:35 amBOI  Boise Air Term. Gowen Fld-BCN Barcelona-El Prat
16h 35m1 stop Dallas/Fort Worth
American Airlines Logo
12:00 pm - 11:59 pmBCN  Barcelona-El Prat-BOI Boise Air Term. Gowen Fld
19h 59m2 stops Philadelphia Phoenix Sky Harbor Intl
$711American Airlines
Wed, Nov 11 - Thu, Nov 26
Iberia Logo
7:00 am - 2:40 pmBOI  Boise Air Term. Gowen Fld-BCN Barcelona-El Prat
23h 40m2 stops Dallas/Fort Worth London Heathrow
Iberia Logo
3:05 pm - 11:29 amBCN  Barcelona-El Prat-BOI Boise Air Term. Gowen Fld
28h 24m2 stops Madrid Barajas Dallas/Fort Worth
$753Iberia
Wed, Dec 2 - Wed, Dec 9
United Airlines Logo
12:37 pm - 1:15 pmBOI  Boise Air Term. Gowen Fld-BCN Barcelona-El Prat
16h 38m1 stop Chicago O'Hare Intl
United Airlines Logo
3:10 pm - 10:51 pmBCN  Barcelona-El Prat-BOI Boise Air Term. Gowen Fld
15h 41m1 stop Chicago O'Hare Intl
$769United Airlines
Sun, Nov 15 - Wed, Nov 18
United Airlines Logo
12:37 pm - 1:15 pmBOI  Boise Air Term. Gowen Fld-BCN Barcelona-El Prat
16h 38m1 stop Chicago O'Hare Intl
United Airlines Logo
1:35 pm - 4:42 pmBCN  Barcelona-El Prat-BOI Boise Air Term. Gowen Fld
35h 07m3 stops Montreal Pierre Elliott Trudeau Intl Boston Logan Intl San Francisco
$772United Airlines
Sun, Nov 15 - Wed, Nov 18
Delta Logo
6:00 am - 8:40 amBOI  Boise Air Term. Gowen Fld-BCN Barcelona-El Prat
18h 40m2 stops Seattle/Tacoma Intl Atlanta Hartsfield-Jackson
Delta Logo
10:50 am - 12:34 pmBCN  Barcelona-El Prat-BOI Boise Air Term. Gowen Fld
33h 44m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul
$774Delta
Wed, Nov 11 - Thu, Nov 26
Delta Logo
1:43 pm - 11:20 amBOI  Boise Air Term. Gowen Fld-BCN Barcelona-El Prat
13h 37m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 12:04 amBCN  Barcelona-El Prat-BOI Boise Air Term. Gowen Fld
26h 04m2 stops Amsterdam Schiphol Salt Lake City
$774Delta
Tue, Jan 19 - Tue, Jan 26
Air Canada Logo
6:25 am - 8:00 amBOI  Boise Air Term. Gowen Fld-BCN Barcelona-El Prat
17h 35m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
12:15 pm - 9:35 pmBCN  Barcelona-El Prat-BOI Boise Air Term. Gowen Fld
41h 20m2 stops Montreal Pierre Elliott Trudeau Intl Denver Intl
$786Air Canada
Sun, Oct 11 - Wed, Oct 21
Iberia Logo
12:14 pm - 10:10 amBOI  Boise Air Term. Gowen Fld-BCN Barcelona-El Prat
13h 56m1 stop Dallas/Fort Worth
Iberia Logo
10:45 am - 10:29 pmBCN  Barcelona-El Prat-BOI Boise Air Term. Gowen Fld
19h 44m1 stop Dallas/Fort Worth
$803Iberia
Sun, Oct 11 - Wed, Oct 21
Air Canada Logo
6:30 am - 9:35 amBOI  Boise Air Term. Gowen Fld-BCN Barcelona-El Prat
19h 05m3 stops Denver Intl Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
1:35 pm - 1:45 pmBCN  Barcelona-El Prat-BOI Boise Air Term. Gowen Fld
32h 10m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Denver Intl
$920Air Canada
Wed, Nov 11 - Thu, Nov 26

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American Airlines flights from Boise to Barcelona

Our best American Airlines deals on Boise to Barcelona flight tickets
American Airlines
Nov 11
BOI1:27 pmBoise Air Term. Gowen Fld
19h 03m
2 stops
BCN4:30 pmBarcelona-El Prat
Nov 26
BCN12:00 pmBarcelona-El Prat
19h 59m
2 stops
BOI11:59 pmBoise Air Term. Gowen Fld
$707
American Airlines
Nov 11
BOI7:00 amBoise Air Term. Gowen Fld
16h 35m
1 stop
BCN7:35 amBarcelona-El Prat
Nov 26
BCN12:00 pmBarcelona-El Prat
19h 59m
2 stops
BOI11:59 pmBoise Air Term. Gowen Fld
$711
American Airlines
Nov 11
BOI1:27 pmBoise Air Term. Gowen Fld
19h 03m
2 stops
BCN4:30 pmBarcelona-El Prat
Nov 26
BCN12:00 pmBarcelona-El Prat
19h 59m
2 stops
BOI11:59 pmBoise Air Term. Gowen Fld
$770

Iberia flights from Boise to Barcelona

Our best Iberia deals on Boise to Barcelona flight tickets
Iberia
Dec 2
BOI7:00 amBoise Air Term. Gowen Fld
23h 40m
2 stops
BCN2:40 pmBarcelona-El Prat
Dec 9
BCN3:05 pmBarcelona-El Prat
28h 24m
2 stops
BOI11:29 amBoise Air Term. Gowen Fld
$753
Iberia
Oct 11
BOI12:14 pmBoise Air Term. Gowen Fld
13h 56m
1 stop
BCN10:10 amBarcelona-El Prat
Oct 21
BCN10:45 amBarcelona-El Prat
19h 44m
1 stop
BOI10:29 pmBoise Air Term. Gowen Fld
$803
Iberia
Nov 13
BOI7:00 amBoise Air Term. Gowen Fld
16h 35m
1 stop
BCN7:35 amBarcelona-El Prat
Nov 23
BCN9:15 pmBarcelona-El Prat
22h 21m
2 stops
BOI11:36 amBoise Air Term. Gowen Fld
$830

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 August 15, 2026.
Use the filters below to find and compare flights from Boise to Barcelona that are best for you.

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Route

Depart

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Price

Cheapest round-trip

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Wed 11/11

1:27 pm-4:30 pm

2 stops19h 03m

Barcelona-El Prat

Thu 11/26

12:00 pm-11:59 pm

2 stops19h 59m

$707

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Wed 11/11

7:00 am-7:35 am

1 stop16h 35m

Barcelona-El Prat

Thu 11/26

12:00 pm-11:59 pm

2 stops19h 59m

$711

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Wed 12/2

7:00 am-2:40 pm

2 stops23h 40m

Barcelona-El Prat

Wed 12/9

3:05 pm-11:29 am

2 stops28h 24m

$753
Quickest round-trip

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Sun 11/15

12:37 pm-1:15 pm

1 stop16h 38m

Barcelona-El Prat

Wed 11/18

3:10 pm-10:51 pm

1 stop15h 41m

$769

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Sun 11/15

12:37 pm-1:15 pm

1 stop16h 38m

Barcelona-El Prat

Wed 11/18

1:35 pm-4:42 pm

3 stops35h 07m

$772

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Wed 11/11

6:00 am-8:40 am

2 stops18h 40m

Barcelona-El Prat

Thu 11/26

10:50 am-12:34 pm

2 stops33h 44m

$774

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Tue 1/19

1:43 pm-11:20 am

1 stop13h 37m

Barcelona-El Prat

Tue 1/26

6:00 am-12:04 am

2 stops26h 04m

$774

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/11

6:25 am-8:00 am

2 stops17h 35m

Barcelona-El Prat

Wed 10/21

12:15 pm-9:35 pm

2 stops41h 20m

$786

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Sun 10/11

12:14 pm-10:10 am

1 stop13h 56m

Barcelona-El Prat

Wed 10/21

10:45 am-10:29 pm

1 stop19h 44m

$803

BoiseBarcelona

BOI Boise Air Term. Gowen Fld - BCN Barcelona-El Prat

BOIBCN

Boise Air Term. Gowen Fld

Wed 11/11

6:30 am-9:35 am

3 stops19h 05m

Barcelona-El Prat

Thu 11/26

1:35 pm-1:45 pm

3 stops32h 10m

$920

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 $504. 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 $674.

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

18h 35m

Direct flights

None
The fastest flight from Boise to Barcelona takes 18h 35m
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 18h 35m.

  • 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
3,258 reviews
Search Iberia flights
United AirlinesPriceFrom $498Free CancellationRating
7.4
10,112 reviews
Search United Airlines flights
DeltaPriceFrom $599Free CancellationRating
7.8
8,514 reviews
Search Delta flights
Air CanadaPriceFrom $856Free CancellationRating
7.1
11,478 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