What airlines fly to Spain?

United Airlines, Delta and American Airlines 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 36% of people opting to fly with this airline when traveling to Spain. Keep in mind that there are 7 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?

American Airlines, United Airlines, and Lufthansa 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 7 operators available for flights from Idaho to Spain as of December 2025.

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.

$286 Cheap Flights from Idaho to Spain in 2025/26

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Find the cheapest flights from Idaho to Spain

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:25 am - 11:40 pm

GEG

AGP

27h 15m2 stops

8:20 pm - 3:00 pm

AGP

GEG

27h 40m2 stops

$477Multiple Airlines

Mon, Jan 19 - Sun, Jan 25

4:02 pm - 4:30 pm

BOI

BCN

16h 28m2 stops

10:40 am - 10:36 pm

BCN

BOI

19h 56m1 stop

$481Multiple Airlines

Fri, Feb 20 - Fri, Feb 27

10:05 am - 1:40 pm

GEG

BCN

18h 35m2 stops

10:40 am - 9:13 pm

BCN

GEG

19h 33m1 stop

$481Multiple Airlines

Fri, Jan 30 - Fri, Feb 13

2:37 pm - 9:35 am

BOI

BCN

34h 58m2 stops

1:35 pm - 10:12 am

BCN

BOI

28h 37m2 stops

$482Air Canada

Thu, Feb 5 - Thu, Feb 12

3:18 pm - 4:55 pm

BOI

MAD

17h 37m2 stops

12:55 am - 12:46 pm

MAD

BOI

19h 51m1 stop

$485American Airlines

Thu, Feb 5 - Wed, Feb 11

6:29 am - 12:20 pm

GEG

AGP

44h 51m2 stops

4:25 pm - 2:58 pm

AGP

GEG

31h 33m2 stops

$488Delta

Wed, Feb 4 - Wed, Feb 11

5:00 am - 9:00 am

GEG

BCN

19h 00m2 stops

11:00 am - 10:44 am

BCN

GEG

32h 44m2 stops

$489United Airlines

Thu, Jan 22 - Mon, Jan 26

12:19 pm - 11:20 pm

BOI

BIO

27h 01m2 stops

11:35 am - 11:48 pm

BIO

BOI

20h 13m2 stops

$489United Airlines

Fri, Jan 30 - Tue, Feb 3

12:45 pm - 3:00 pm

BOI

BCN

19h 15m2 stops

9:45 am - 12:53 pm

BCN

BOI

34h 08m1 stop

$493Delta

Mon, Mar 9 - Mon, Mar 16

6:00 am - 8:50 am

GEG

BCN

17h 50m1 stop

12:30 pm - 11:30 pm

BCN

GEG

20h 00m2 stops

$539American Airlines

Thu, Feb 5 - Thu, Mar 5

United Airlines flights from Idaho to Spain

Our best United Airlines deals on Idaho to Spain flight tickets

United Airlines

Mar 4

BOI6:25 amBoise Air Term. Gowen Fld

17h 35m

2 stops

MAD8:00 amMadrid Barajas

Mar 10

MAD12:40 pmMadrid Barajas

41h 16m

2 stops

BOI10:56 pmBoise Air Term. Gowen Fld

$472

Find similar

United Airlines

Jan 22

GEG5:00 amSpokane

19h 00m

2 stops

BCN9:00 amBarcelona-El Prat

Jan 26

BCN11:00 amBarcelona-El Prat

32h 44m

2 stops

GEG10:44 amSpokane

$489

Find similar

United Airlines

Feb 20

BOI5:00 amBoise Air Term. Gowen Fld

20h 35m

2 stops

BCN9:35 amBarcelona-El Prat

Feb 27

BCN6:50 amBarcelona-El Prat

24h 48m

2 stops

BOI11:38 pmBoise Air Term. Gowen Fld

$491

Find similar

American Airlines flights from Idaho to Spain

Our best American Airlines deals on Idaho to Spain flight tickets

American Airlines

Feb 5

BOI3:18 pmBoise Air Term. Gowen Fld

17h 37m

2 stops

MAD4:55 pmMadrid Barajas

Feb 11

MAD12:55 amMadrid Barajas

19h 51m

1 stop

BOI12:46 pmBoise Air Term. Gowen Fld

$485

Find similar

American Airlines

Feb 5

GEG6:00 amSpokane

17h 50m

1 stop

BCN8:50 amBarcelona-El Prat

Mar 5

BCN12:30 pmBarcelona-El Prat

20h 00m

2 stops

GEG11:30 pmSpokane

$539

Find similar

American Airlines

Apr 14

GEG2:03 pmSpokane

18h 27m

2 stops

MAD5:30 pmMadrid Barajas

Apr 28

MAD12:40 pmMadrid Barajas

16h 54m

1 stop

GEG8:34 pmSpokane

$568

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SpokaneMálaga

GEG - AGP

GEGAGP

Spokane

Mon 1/19

11:25 am-11:40 pm

2 stops27h 15m

Malaga

Sun 1/25

8:20 pm-3:00 pm

2 stops27h 40m

$477

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Fri 2/20

4:02 pm-4:30 pm

2 stops16h 28m

Barcelona-El Prat

Fri 2/27

10:40 am-10:36 pm

1 stop19h 56m

$481

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Fri 1/30

10:05 am-1:40 pm

2 stops18h 35m

Barcelona-El Prat

Fri 2/13

10:40 am-9:13 pm

1 stop19h 33m

$481

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Thu 2/5

2:37 pm-9:35 am

2 stops34h 58m

Barcelona-El Prat

Thu 2/12

1:35 pm-10:12 am

2 stops28h 37m

$482

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Thu 2/5

3:18 pm-4:55 pm

2 stops17h 37m

Madrid Barajas

Wed 2/11

12:55 am-12:46 pm

1 stop19h 51m

$485

SpokaneMálaga

GEG - AGP

GEGAGP

Spokane

Wed 2/4

6:29 am-12:20 pm

2 stops44h 51m

Malaga

Wed 2/11

4:25 pm-2:58 pm

2 stops31h 33m

$488

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Thu 1/22

5:00 am-9:00 am

2 stops19h 00m

Barcelona-El Prat

Mon 1/26

11:00 am-10:44 am

2 stops32h 44m

$489

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Fri 1/30

12:19 pm-11:20 pm

2 stops27h 01m

Bilbao

Tue 2/3

11:35 am-11:48 pm

2 stops20h 13m

$489

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

Mon 3/9

12:45 pm-3:00 pm

2 stops19h 15m

Barcelona-El Prat

Mon 3/16

9:45 am-12:53 pm

1 stop34h 08m

$493

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Thu 2/5

6:00 am-8:50 am

1 stop17h 50m

Barcelona-El Prat

Thu 3/5

12:30 pm-11:30 pm

2 stops20h 00m

$539

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 November to fly from Idaho, when ticket prices are also cheap, with an average price of $631.

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

The cheapest day to depart from Idaho 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 Idaho to Spain for around $1,459.

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

Flying to Spain from Idaho 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.

Can stopping save me money on Idaho to Spain flights?

You could potentially save up to 4% 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 19m
Direct flights	None

The fastest flight from Idaho to Spain takes 13h 19m

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 7 operators available for flights from Idaho to Spain as of December 2025.
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
United Airlines	PriceFrom $493	Free Cancellation	Rating 7.4 9,105 reviews	Search United Airlines flights
Iberia	PriceFrom $505	Free Cancellation	Rating 7.0 3,056 reviews	Search Iberia flights
American Airlines	PriceFrom $602	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
Delta	PriceFrom $617	Free Cancellation	Rating 7.9 8,014 reviews	Search Delta flights
Finnair	PriceFrom $637	Free Cancellation	Rating 7.6 1,339 reviews	Search Finnair flights
Air Canada	PriceFrom $651	Free Cancellation	Rating 7.1 10,551 reviews	Search Air Canada flights
KLM	PriceFrom $1,145	Free Cancellation	Rating 7.7 1,434 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.