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

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

What airlines fly to Spain?

Delta, United Airlines and Iberia are the top three most popular airlines that fly to Spain from Idaho according to our data. Delta is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Spain. Keep in mind that there are 5 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 May 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.

$357 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.

4:05 pm - 11:05 pm

BOI

BIO

23h 00m

2 stops

6:45 am - 5:55 pm

BIO

BOI

19h 10m

2 stops

$743United Airlines

Wed, Nov 18 - Fri, Nov 27

6:25 am - 11:05 pm

BOI

BIO

32h 40m

2 stops

6:50 am - 9:31 pm

BIO

BOI

22h 41m

2 stops

$755United Airlines

Tue, Sep 29 - Tue, Oct 13

7:05 pm - 11:25 pm

BOI

BIO

20h 20m

2 stops

2:10 pm - 9:31 pm

BIO

BOI

39h 21m

2 stops

$763United Airlines

Mon, Sep 28 - Mon, Oct 12

2:09 pm - 6:35 pm

GEG

BCN

19h 26m

2 stops

12:20 pm - 9:25 pm

BCN

GEG

18h 05m

2 stops

$770Multiple Airlines

Wed, Sep 30 - Wed, Oct 14

1:46 pm - 2:15 pm

JAC

BCN

16h 29m

2 stops

1:30 pm - 11:59 am

BCN

JAC

30h 29m

2 stops

$772American Airlines

Tue, Oct 6 - Tue, Oct 20

12:45 pm - 3:40 pm

GEG

BCN

17h 55m

2 stops

10:15 am - 8:47 pm

BCN

GEG

19h 32m

2 stops

$783Multiple Airlines

Tue, Oct 13 - Fri, Oct 23

3:05 pm - 7:15 pm

GEG

AGP

19h 10m

2 stops

10:45 am - 11:42 pm

AGP

GEG

21h 57m

2 stops

$797KLM

Fri, Oct 9 - Fri, Oct 16

12:42 pm - 6:10 pm

BOI

BCN

21h 28m

2 stops

7:00 pm - 6:40 pm

BCN

BOI

31h 40m

2 stops

$798Scandinavian Airlines

Tue, Sep 8 - Thu, Sep 17

12:40 pm - 12:50 pm

GEG

BCN

15h 10m

1 stop

1:20 pm - 11:42 pm

BCN

GEG

19h 22m

1 stop

$799KLM

Tue, Oct 13 - Fri, Oct 23

2:57 pm - 3:50 pm

BOI

MAD

16h 53m

2 stops

1:00 pm - 12:32 pm

MAD

BOI

30h 32m

1 stop

$846American Airlines

Sat, Oct 17 - Fri, Oct 30

Iberia flights from Idaho to Spain

Our best Iberia deals on Idaho to Spain flight tickets

Iberia

Nov 8

GEG5:25 amSpokane

15h 45m

1 stop

MAD6:10 amMadrid Barajas

Nov 12

MAD1:00 pmMadrid Barajas

16h 55m

1 stop

GEG8:55 pmSpokane

$794

Iberia

Oct 17

BOI2:55 pmBoise Air Term. Gowen Fld

34h 10m

1 stop

MAD9:05 amMadrid Barajas

Oct 30

MAD1:00 pmMadrid Barajas

29h 26m

1 stop

BOI11:26 amBoise Air Term. Gowen Fld

$806

Iberia

Nov 3

GEG5:25 amSpokane

15h 45m

1 stop

MAD6:10 amMadrid Barajas

Nov 18

MAD1:00 pmMadrid Barajas

16h 55m

1 stop

GEG8:55 pmSpokane

$821

Virgin Atlantic flights from Idaho to Spain

Our best Virgin Atlantic deals on Idaho to Spain flight tickets

Virgin Atlantic

Jul 13

BOI2:50 pmBoise Air Term. Gowen Fld

35h 05m

2 stops

MAD9:55 amMadrid Barajas

Jul 28

MAD12:45 pmMadrid Barajas

19h 06m

2 stops

BOI11:51 pmBoise Air Term. Gowen Fld

$948

Virgin Atlantic

Jul 13

BOI2:04 pmBoise Air Term. Gowen Fld

14h 11m

1 stop

MAD12:15 pmMadrid Barajas

Jul 28

MAD12:45 pmMadrid Barajas

19h 06m

2 stops

BOI11:51 pmBoise Air Term. Gowen Fld

$951

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 11/18

4:05 pm-11:05 pm

2 stops23h 00m

Bilbao

Fri 11/27

6:45 am-5:55 pm

2 stops19h 10m

$743

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Tue 9/29

6:25 am-11:05 pm

2 stops32h 40m

Bilbao

Tue 10/13

6:50 am-9:31 pm

2 stops22h 41m

$755

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Mon 9/28

7:05 pm-11:25 pm

2 stops20h 20m

Bilbao

Mon 10/12

2:10 pm-9:31 pm

2 stops39h 21m

$763

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Wed 9/30

2:09 pm-6:35 pm

2 stops19h 26m

Barcelona-El Prat

Wed 10/14

12:20 pm-9:25 pm

2 stops18h 05m

$770

JacksonBarcelona

JAC - BCN

JACBCN

Jackson Hole

Tue 10/6

1:46 pm-2:15 pm

2 stops16h 29m

Barcelona-El Prat

Tue 10/20

1:30 pm-11:59 am

2 stops30h 29m

$772

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Tue 10/13

12:45 pm-3:40 pm

2 stops17h 55m

Barcelona-El Prat

Fri 10/23

10:15 am-8:47 pm

2 stops19h 32m

$783

SpokaneMálaga

GEG - AGP

GEGAGP

Spokane

Fri 10/9

3:05 pm-7:15 pm

2 stops19h 10m

Malaga

Fri 10/16

10:45 am-11:42 pm

2 stops21h 57m

$797

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Tue 9/8

12:42 pm-6:10 pm

2 stops21h 28m

Barcelona-El Prat

Thu 9/17

7:00 pm-6:40 pm

2 stops31h 40m

$798

Quickest round-trip

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Tue 10/13

12:40 pm-12:50 pm

1 stop15h 10m

Barcelona-El Prat

Fri 10/23

1:20 pm-11:42 pm

1 stop19h 22m

$799

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Sat 10/17

2:57 pm-3:50 pm

2 stops16h 53m

Madrid Barajas

Fri 10/30

1:00 pm-12:32 pm

1 stop30h 32m

$846

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 March to fly from Idaho, when ticket prices are also cheap, with an average price of $468.

Can stopping save me money on Idaho to Spain flights?

You could potentially save up to 35% 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	14h 35m
Direct flights	None

The fastest flight from Idaho to Spain takes 14h 35m

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 May 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 3,219 reviews	Search Iberia flights
United Airlines	PriceFrom $493	Free Cancellation	Rating 7.4 9,750 reviews	Search United Airlines flights
Delta	PriceFrom $528	Free Cancellation	Rating 7.9 8,424 reviews	Search Delta flights
American Airlines	PriceFrom $541	Free Cancellation	Rating 7.1 11,630 reviews	Search American Airlines flights
Air Canada	PriceFrom $856	Free Cancellation	Rating 7.1 11,090 reviews	Search Air Canada 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.