What airlines fly to Spain?

United Airlines, Delta and Iberia are the top three most popular airlines that fly to Spain from Idaho according to our data. United Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Spain. Keep in mind that there are 6 different airlines that fly to Spain on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Idaho to Spain?

Air Canada, American Airlines, and Iberia are the most popular carriers operating from Idaho to Spain

When did momondo last update prices for flights from Idaho to Spain?

Prices for flights from Idaho to Spain refresh daily.

How many operators does momondo search for flights from Idaho to Spain?

There are 6 operators available for flights from Idaho to Spain as of February 2026.

How old do you have to be to fly from Idaho to Spain?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Spain.

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

The required travel and health documents for your Spain 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 Spain. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$257 Cheap Flights from Idaho to Spain in 2026

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Find the cheapest flights from Idaho to Spain

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:00 am - 8:20 am

BOI

BCN

19h 20m

2 stops

12:15 pm - 9:17 pm

BCN

BOI

41h 02m

2 stops

$471United Airlines

Tue, Apr 21 - Fri, May 1

6:26 pm - 8:20 pm

BOI

BCN

17h 54m

2 stops

10:45 am - 10:54 pm

BCN

BOI

20h 09m

1 stop

$483American Airlines

Sun, Apr 12 - Wed, Apr 22

1:29 pm - 5:05 pm

BOI

BCN

19h 36m

2 stops

10:45 am - 10:54 pm

BCN

BOI

20h 09m

1 stop

$484American Airlines

Sun, Apr 12 - Wed, Apr 22

1:29 pm - 10:55 am

BOI

BCN

13h 26m

1 stop

10:45 am - 10:54 pm

BCN

BOI

20h 09m

1 stop

$487Finnair

Sun, Apr 12 - Wed, Apr 22

1:29 pm - 1:30 pm

BOI

MAD

16h 01m

1 stop

3:55 pm - 12:51 pm

MAD

BOI

28h 56m

1 stop

$497Multiple Airlines

Mon, Apr 13 - Tue, Apr 28

2:18 pm - 12:15 pm

BOI

MAD

13h 57m

1 stop

10:05 am - 11:00 pm

MAD

BOI

20h 55m

2 stops

$501Delta

Tue, Apr 14 - Tue, Apr 28

7:24 am - 11:20 am

BOI

MAD

19h 56m

2 stops

6:00 am - 8:00 pm

MAD

BOI

22h 00m

2 stops

$505Delta

Tue, Apr 14 - Tue, Apr 28

6:00 am - 2:25 pm

GEG

MAD

23h 25m

1 stop

7:35 pm - 8:33 pm

MAD

GEG

33h 58m

2 stops

$506Multiple Airlines

Wed, Apr 22 - Wed, Apr 29

6:00 am - 2:25 pm

GEG

MAD

23h 25m

1 stop

1:00 pm - 8:33 pm

MAD

GEG

16h 33m

1 stop

$601Iberia

Wed, Apr 22 - Wed, Apr 29

1:39 pm - 8:30 am

BOI

BIO

34h 51m

2 stops

5:35 pm - 9:07 pm

BIO

BOI

59h 32m

2 stops

$651Iberia

Sun, Apr 5 - Sun, Apr 12

United Airlines flights from Idaho to Spain

Our best United Airlines deals on Idaho to Spain flight tickets

United Airlines

Apr 21

BOI5:00 amBoise Air Term. Gowen Fld

19h 20m

2 stops

BCN8:20 amBarcelona-El Prat

May 1

BCN12:15 pmBarcelona-El Prat

41h 02m

2 stops

BOI9:17 pmBoise Air Term. Gowen Fld

$471

United Airlines

Apr 14

BOI6:15 amBoise Air Term. Gowen Fld

16h 35m

2 stops

MAD6:50 amMadrid Barajas

Apr 28

MAD5:55 amMadrid Barajas

24h 40m

2 stops

BOI10:35 pmBoise Air Term. Gowen Fld

$495

United Airlines

Apr 22

GEG5:05 amSpokane

18h 00m

2 stops

MAD8:05 amMadrid Barajas

Apr 29

MAD10:50 amMadrid Barajas

19h 21m

2 stops

GEG9:11 pmSpokane

$496

Air Europa flights from Idaho to Spain

Our best Air Europa deals on Idaho to Spain flight tickets

Air Europa

Mar 23

BOI5:52 amBoise Air Term. Gowen Fld

18h 08m

2 stops

MAD7:00 amMadrid Barajas

Mar 31

MAD12:45 pmMadrid Barajas

17h 40m

1 stop

BOI10:25 pmBoise Air Term. Gowen Fld

$683

Air Europa

Mar 6

BOI7:30 amBoise Air Term. Gowen Fld

26h 10m

2 stops

MAD5:40 pmMadrid Barajas

Mar 12

MAD10:05 amMadrid Barajas

19h 20m

1 stop

BOI10:25 pmBoise Air Term. Gowen Fld

$910

Fly from

Fly to

Route

Depart

Return

Price

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 4/21

5:00 am-8:20 am

2 stops19h 20m

Barcelona-El Prat

Fri 5/1

12:15 pm-9:17 pm

2 stops41h 02m

$471

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 4/12

6:26 pm-8:20 pm

2 stops17h 54m

Barcelona-El Prat

Wed 4/22

10:45 am-10:54 pm

1 stop20h 09m

$483

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 4/12

1:29 pm-5:05 pm

2 stops19h 36m

Barcelona-El Prat

Wed 4/22

10:45 am-10:54 pm

1 stop20h 09m

$484

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 4/12

1:29 pm-10:55 am

1 stop13h 26m

Barcelona-El Prat

Wed 4/22

10:45 am-10:54 pm

1 stop20h 09m

$487

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Mon 4/13

1:29 pm-1:30 pm

1 stop16h 01m

Madrid Barajas

Tue 4/28

3:55 pm-12:51 pm

1 stop28h 56m

$497

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 4/14

2:18 pm-12:15 pm

1 stop13h 57m

Madrid Barajas

Tue 4/28

10:05 am-11:00 pm

2 stops20h 55m

$501

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 4/14

7:24 am-11:20 am

2 stops19h 56m

Madrid Barajas

Tue 4/28

6:00 am-8:00 pm

2 stops22h 00m

$505

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

Wed 4/22

6:00 am-2:25 pm

1 stop23h 25m

Madrid Barajas

Wed 4/29

7:35 pm-8:33 pm

2 stops33h 58m

$506

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

Wed 4/22

6:00 am-2:25 pm

1 stop23h 25m

Madrid Barajas

Wed 4/29

1:00 pm-8:33 pm

1 stop16h 33m

$601

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sun 4/5

1:39 pm-8:30 am

2 stops34h 51m

Bilbao

Sun 4/12

5:35 pm-9:07 pm

2 stops59h 32m

$651

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho 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

Prices

Airlines

What is the cheapest month to fly to Spain?

If you don’t want to visit Spain in February, then you should wait until January to fly from Idaho, when ticket prices are also cheap, with an average price of $583.

Can stopping save me money on Idaho to Spain flights?

You could potentially save up to 13% on your flight if you consider stops on a Idaho to Spain flight.

Cheap Idaho to Spain flight deals and tips

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

Fastest flight time	13h 26m
Direct flights	None

The fastest flight from Idaho to Spain takes 13h 26m

There are no direct flights from Idaho to Spain. There are no popular flight routes from Idaho to Spain.

Search flight deals

When did momondo last update prices for flights from Idaho to Spain?
Prices for flights from Idaho to Spain refresh daily.
How many operators does momondo search for flights from Idaho to Spain?
There are 6 operators available for flights from Idaho to Spain as of February 2026.
How old do you have to be to fly from Idaho to Spain?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Idaho to Spain.
What documentation or ID do you need to fly to Spain?
The required travel and health documents for your Spain 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 Spain. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Idaho to Spain

Compare and see reviews for airlines that fly from Idaho to Spain with momondo

Airline	Rating	Free Cancellation	Price
Iberia	PriceFrom $483	Free Cancellation	Rating 7.0 3,118 reviews	Search Iberia flights
United Airlines	PriceFrom $493	Free Cancellation	Rating 7.4 9,340 reviews	Search United Airlines flights
American Airlines	PriceFrom $541	Free Cancellation	Rating 7.2 11,340 reviews	Search American Airlines flights
Delta	PriceFrom $550	Free Cancellation	Rating 7.9 8,240 reviews	Search Delta flights
Air Canada	PriceFrom $651	Free Cancellation	Rating 7.1 10,738 reviews	Search Air Canada flights
KLM	PriceFrom $1,145	Free Cancellation	Rating 7.7 1,457 reviews	Search KLM flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Spain from Idaho.

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

momondo does allow users to show only those flights to Spain from Idaho which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Idaho to Spain flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Idaho to Spain right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Idaho to Spain flights. All you need is a valid email address and we will do the rest; it is that quick and easy.