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Cheap flights from Boise to Spain from $394

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 Spain departing on 11/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Boise to Spain

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:20 am - 8:00 amBOI-BCN
18h 40m2 stops
Delta Logo
10:15 am - 11:04 amBCN-BOI
32h 49m2 stops
$438Delta
Find Deal
Tue, Dec 2 - Tue, Dec 9
Delta Logo
5:40 am - 8:00 amBOI-MAD
18h 20m2 stops
Delta Logo
10:00 am - 11:59 pmMAD-BOI
21h 59m2 stops
$443Delta
Find Deal
Mon, Jan 12 - Thu, Jan 22
Delta Logo
5:20 am - 8:00 amBOI-MAD
18h 40m2 stops
Delta Logo
11:15 am - 12:54 pmMAD-BOI
33h 39m1 stop
$448Delta
Find Deal
Tue, Dec 2 - Fri, Dec 12
KLM Logo
1:41 pm - 9:15 amBOI-MAD
35h 34m1 stop
KLM Logo
6:00 am - 6:28 pmMAD-BOI
20h 28m2 stops
$471KLM
Find Deal
Sun, Jan 25 - Mon, Feb 2
American Airlines Logo
3:21 pm - 5:55 pmBOI-BCN
18h 34m2 stops
American Airlines Logo
10:40 am - 7:25 pmBCN-BOI
16h 45m1 stop
$480American Airlines
Find Deal
Sat, Jan 24 - Mon, Feb 2
United Airlines Logo
5:00 am - 8:00 amBOI-MAD
19h 00m2 stops
United Airlines Logo
5:55 am - 8:55 pmMAD-BOI
23h 00m2 stops
$488United Airlines
Find Deal
Thu, Feb 12 - Wed, Feb 25
United Airlines Logo
1:50 pm - 9:55 pmBOI-BIO
24h 05m2 stops
United Airlines Logo
6:45 am - 12:17 pmBIO-BOI
37h 32m2 stops
$488United Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 13
American Airlines Logo
3:14 pm - 4:55 pmBOI-MAD
17h 41m2 stops
American Airlines Logo
1:00 pm - 10:36 pmMAD-BOI
17h 36m1 stop
$567American Airlines
Find Deal
Wed, Feb 11 - Wed, Feb 18
KLM Logo
10:36 am - 7:05 pmBOI-BCN
24h 29m2 stops
KLM Logo
6:00 am - 4:26 pmBCN-BOI
17h 26m2 stops
$705KLM
Find Deal
Fri, Mar 6 - Tue, Mar 10
Iberia Logo
7:00 am - 1:05 pmBOI-SCQ
22h 05m2 stops
Iberia Logo
9:45 pm - 10:32 pmSCQ-BOI
32h 47m2 stops
$1,682Iberia
Find Deal
Fri, Nov 14 - Tue, Nov 18

Delta flights from Boise to Spain

Our best Delta deals on Boise to Spain flight tickets
Delta
Dec 2
BOI5:20 amBoise Air Term. Gowen Fld
18h 40m
2 stops
BCN8:00 amBarcelona-El Prat
Dec 9
BCN10:15 amBarcelona-El Prat
32h 49m
2 stops
BOI11:04 amBoise Air Term. Gowen Fld
$438
Find similar
Delta
Jan 12
BOI5:40 amBoise Air Term. Gowen Fld
18h 20m
2 stops
MAD8:00 amMadrid Barajas
Jan 22
MAD10:00 amMadrid Barajas
21h 59m
2 stops
BOI11:59 pmBoise Air Term. Gowen Fld
$443
Find similar
Delta
Dec 2
BOI5:20 amBoise Air Term. Gowen Fld
18h 40m
2 stops
MAD8:00 amMadrid Barajas
Dec 12
MAD11:15 amMadrid Barajas
33h 39m
1 stop
BOI12:54 pmBoise Air Term. Gowen Fld
$448
Find similar

United Airlines flights from Boise to Spain

Our best United Airlines deals on Boise to Spain flight tickets
United Airlines
Nov 9
BOI6:20 amBoise Air Term. Gowen Fld
17h 45m
2 stops
MAD8:05 amMadrid Barajas
Nov 21
MAD1:35 pmMadrid Barajas
41h 10m
2 stops
BOI10:45 pmBoise Air Term. Gowen Fld
$470
Find similar
United Airlines
Feb 12
BOI5:00 amBoise Air Term. Gowen Fld
19h 00m
2 stops
MAD8:00 amMadrid Barajas
Feb 25
MAD5:55 amMadrid Barajas
23h 00m
2 stops
BOI8:55 pmBoise Air Term. Gowen Fld
$488
Find similar
United Airlines
Jan 22
BOI6:10 amBoise Air Term. Gowen Fld
19h 05m
2 stops
MAD9:15 amMadrid Barajas
Feb 1
MAD5:55 amMadrid Barajas
21h 56m
2 stops
BOI7:51 pmBoise Air Term. Gowen Fld
$492
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boise to Spain 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 November 4, 2025.
Use the filters below to find and compare flights from Boise to Spain that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 12/2

5:20 am-8:00 am

2 stops18h 40m

Barcelona-El Prat

Tue 12/9

10:15 am-11:04 am

2 stops32h 49m

$438

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Mon 1/12

5:40 am-8:00 am

2 stops18h 20m

Madrid Barajas

Thu 1/22

10:00 am-11:59 pm

2 stops21h 59m

$443

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 12/2

5:20 am-8:00 am

2 stops18h 40m

Madrid Barajas

Fri 12/12

11:15 am-12:54 pm

1 stop33h 39m

$448

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Sun 1/25

1:41 pm-9:15 am

1 stop35h 34m

Madrid Barajas

Mon 2/2

6:00 am-6:28 pm

2 stops20h 28m

$471

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sat 1/24

3:21 pm-5:55 pm

2 stops18h 34m

Barcelona-El Prat

Mon 2/2

10:40 am-7:25 pm

1 stop16h 45m

$480

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Thu 2/12

5:00 am-8:00 am

2 stops19h 00m

Madrid Barajas

Wed 2/25

5:55 am-8:55 pm

2 stops23h 00m

$488

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 12/3

1:50 pm-9:55 pm

2 stops24h 05m

Bilbao

Sat 12/13

6:45 am-12:17 pm

2 stops37h 32m

$488

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Wed 2/11

3:14 pm-4:55 pm

2 stops17h 41m

Madrid Barajas

Wed 2/18

1:00 pm-10:36 pm

1 stop17h 36m

$567

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 3/6

10:36 am-7:05 pm

2 stops24h 29m

Barcelona-El Prat

Tue 3/10

6:00 am-4:26 pm

2 stops17h 26m

$705

BoiseSantiago de Compostela

BOI - SCQ

BOISCQ

Boise Air Term. Gowen Fld

Fri 11/14

7:00 am-1:05 pm

2 stops22h 05m

Santiago de Compostela

Tue 11/18

9:45 pm-10:32 pm

2 stops32h 47m

$1,682

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 Spain from

How to get the cheapest flight ticket from Boise to Spain

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 Spain?

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

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

The cheapest day to depart from Boise to Spain is on a Sunday when prices can be found for as low as $813. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Boise to Spain for around $1,459.

What is the cheapest time of day to depart on your flight to Spain?

Flying to Spain from Boise in the evening is the least expensive time of day to depart. momondo users have found prices as low as $842 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to Spain is in the morning when prices are around $1,010.

Cheap Boise to Spain flight deals and tips

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

Direct flights

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

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Spain?

    Prices for flights from Boise Air Term. Gowen Fld Airport to Spain are refreshed on a daily basis.

  • How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Spain?

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Spain?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boise Air Term. Gowen Fld Airport to Spain.

  • What documentation or ID do you need to fly to Spain?

    The travel and health documents you'll need for your trip to Spain may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Spain. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Boise to Spain

Compare and see reviews for airlines that fly from Boise to Spain with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $493Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
DeltaPriceFrom $550Free CancellationRating
7.9
8,002 reviews
Search Delta flights
IberiaPriceFrom $586Free CancellationRating
7.0
3,006 reviews
Search Iberia flights
American AirlinesPriceFrom $602Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
FinnairPriceFrom $637Free CancellationRating
7.6
1,335 reviews
Search Finnair flights
Air CanadaPriceFrom $651Free CancellationRating
7.1
10,400 reviews
Search Air Canada flights
KLMPriceFrom $912Free CancellationRating
7.7
1,405 reviews
Search KLM flights

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Spain?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boise to Spain for you.

Can I find flights from Boise to Spain with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Spain from Boise with this policy.

How can momondo help me find flights from Boise to Spain?

momondo helps you find the best flight between Boise and Spain 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 Spain right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Boise to Spain 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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