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

American Airlines, United Airlines, and KLM are the most popular carriers operating from Idaho to Spain

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 34% 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.

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 April 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.

$407 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.

1:15 pm - 5:30 pm

BOI

BIO

20h 15m

2 stops

6:45 am - 6:33 pm

BIO

BOI

19h 48m

2 stops

$741Delta

Tue, Sep 29 - Tue, Oct 13

11:45 am - 11:25 pm

BOI

BIO

27h 40m

2 stops

6:50 am - 7:16 pm

BIO

BOI

20h 26m

2 stops

$743United Airlines

Tue, Sep 29 - Tue, Oct 13

1:58 pm - 6:35 pm

GEG

BCN

19h 37m

2 stops

12:20 pm - 10:57 pm

BCN

GEG

19h 37m

2 stops

$770Multiple Airlines

Wed, Sep 30 - Wed, Oct 21

6:30 am - 8:50 am

BOI

MAD

42h 20m

2 stops

12:45 pm - 1:30 pm

MAD

BOI

32h 45m

2 stops

$782Air Canada

Sun, Sep 20 - Wed, Sep 23

1:58 pm - 5:30 pm

GEG

MAD

18h 32m

2 stops

12:20 pm - 8:47 pm

MAD

GEG

17h 27m

1 stop

$790American Airlines

Tue, Sep 22 - Wed, Oct 7

1:15 pm - 5:30 pm

BOI

BIO

20h 15m

2 stops

6:45 am - 6:33 pm

BIO

BOI

19h 48m

2 stops

$791Multiple Airlines

Tue, Sep 29 - Tue, Oct 13

1:58 pm - 1:30 pm

GEG

MAD

14h 32m

1 stop

12:20 pm - 8:47 pm

MAD

GEG

17h 27m

1 stop

$794American Airlines

Tue, Sep 22 - Wed, Oct 7

12:10 pm - 11:15 pm

BOI

BIO

27h 05m

2 stops

9:35 pm - 9:40 pm

BIO

BOI

56h 05m

2 stops

$797Iberia

Wed, Aug 5 - Wed, Aug 19

6:44 am - 10:10 am

BOI

BCN

19h 26m

1 stop

10:45 am - 10:17 pm

BCN

BOI

19h 32m

1 stop

$836Iberia

Sun, Aug 9 - Thu, Aug 20

7:00 am - 4:50 pm

GEG

AGP

24h 50m

3 stops

6:25 am - 10:35 pm

AGP

GEG

25h 10m

3 stops

$3,120Air Canada

Thu, May 28 - Thu, Jul 2

American Airlines flights from Idaho to Spain

Our best American Airlines deals on Idaho to Spain flight tickets

American Airlines

Sep 22

GEG1:58 pmSpokane

18h 32m

2 stops

MAD5:30 pmMadrid Barajas

Oct 7

MAD12:20 pmMadrid Barajas

17h 27m

1 stop

GEG8:47 pmSpokane

$790

American Airlines

Sep 22

GEG1:58 pmSpokane

14h 32m

1 stop

MAD1:30 pmMadrid Barajas

Oct 7

MAD12:20 pmMadrid Barajas

17h 27m

1 stop

GEG8:47 pmSpokane

$794

American Airlines

Sep 22

GEG1:58 pmSpokane

16h 52m

2 stops

MAD3:50 pmMadrid Barajas

Oct 7

MAD10:25 amMadrid Barajas

19h 22m

2 stops

GEG8:47 pmSpokane

$821

Lufthansa flights from Idaho to Spain

Our best Lufthansa deals on Idaho to Spain flight tickets

Lufthansa

Aug 11

BOI2:44 pmBoise Air Term. Gowen Fld

17h 26m

2 stops

MAD4:10 pmMadrid Barajas

Aug 25

MAD8:25 amMadrid Barajas

21h 00m

2 stops

BOI9:25 pmBoise Air Term. Gowen Fld

$845

Lufthansa

Aug 6

BOI8:25 amBoise Air Term. Gowen Fld

22h 30m

2 stops

BCN2:55 pmBarcelona-El Prat

Aug 21

BCN7:55 amBarcelona-El Prat

21h 30m

2 stops

BOI9:25 pmBoise Air Term. Gowen Fld

$887

Lufthansa

Apr 14

BOI10:35 amBoise Air Term. Gowen Fld

23h 05m

2 stops

MAD5:40 pmMadrid Barajas

Apr 28

MAD7:00 amMadrid Barajas

22h 22m

2 stops

BOI9:22 pmBoise Air Term. Gowen Fld

$894

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Tue 9/29

1:15 pm-5:30 pm

2 stops20h 15m

Bilbao

Tue 10/13

6:45 am-6:33 pm

2 stops19h 48m

$741

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Tue 9/29

11:45 am-11:25 pm

2 stops27h 40m

Bilbao

Tue 10/13

6:50 am-7:16 pm

2 stops20h 26m

$743

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Wed 9/30

1:58 pm-6:35 pm

2 stops19h 37m

Barcelona-El Prat

Wed 10/21

12:20 pm-10:57 pm

2 stops19h 37m

$770

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Sun 9/20

6:30 am-8:50 am

2 stops42h 20m

Madrid Barajas

Wed 9/23

12:45 pm-1:30 pm

2 stops32h 45m

$782

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

Tue 9/22

1:58 pm-5:30 pm

2 stops18h 32m

Madrid Barajas

Wed 10/7

12:20 pm-8:47 pm

1 stop17h 27m

$790

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Tue 9/29

1:15 pm-5:30 pm

2 stops20h 15m

Bilbao

Tue 10/13

6:45 am-6:33 pm

2 stops19h 48m

$791

Quickest round-trip

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

Tue 9/22

1:58 pm-1:30 pm

1 stop14h 32m

Madrid Barajas

Wed 10/7

12:20 pm-8:47 pm

1 stop17h 27m

$794

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 8/5

12:10 pm-11:15 pm

2 stops27h 05m

Bilbao

Wed 8/19

9:35 pm-9:40 pm

2 stops56h 05m

$797

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Sun 8/9

6:44 am-10:10 am

1 stop19h 26m

Barcelona-El Prat

Thu 8/20

10:45 am-10:17 pm

1 stop19h 32m

$836

SpokaneMálaga

GEG - AGP

GEGAGP

Spokane

Thu 5/28

7:00 am-4:50 pm

3 stops24h 50m

Malaga

Thu 7/2

6:25 am-10:35 pm

3 stops25h 10m

$3,120

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 41% 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

Frequently asked questions about flying 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 April 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 3,178 reviews	Search Iberia flights
American Airlines	PriceFrom $489	Free Cancellation	Rating 7.1 11,571 reviews	Search American Airlines flights
United Airlines	PriceFrom $493	Free Cancellation	Rating 7.4 9,569 reviews	Search United Airlines flights
Delta	PriceFrom $529	Free Cancellation	Rating 7.9 8,407 reviews	Search Delta flights
Air Canada	PriceFrom $651	Free Cancellation	Rating 7.1 10,916 reviews	Search Air Canada flights
KLM	PriceFrom $1,145	Free Cancellation	Rating 7.7 1,493 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.