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Cheap flights from Idaho to Madrid from $435

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Madrid departing on 9/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Idaho to Madrid

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:30 am - 6:50 am
BOI
-
MAD
16h 20m
2 stops
Multiple Airlines Logo
6:25 pm - 9:25 pm
MAD
-
BOI
35h 00m
2 stops
$759Multiple Airlines
Mon, Aug 17 - Mon, Sep 7
Lufthansa Logo
12:35 pm - 10:30 pm
GEG
-
MAD
24h 55m
2 stops
Lufthansa Logo
7:00 am - 9:11 pm
MAD
-
GEG
23h 11m
2 stops
$762Lufthansa
Wed, Apr 22 - Wed, Apr 29
Multiple Airlines Logo
4:30 pm - 2:25 pm
JAC
-
MAD
13h 55m
1 stop
Multiple Airlines Logo
7:50 pm - 11:54 am
MAD
-
JAC
24h 04m
2 stops
$775Multiple Airlines
Wed, Sep 23 - Fri, Oct 16
American Airlines Logo
1:22 pm - 1:30 pm
GEG
-
MAD
15h 08m
1 stop
American Airlines Logo
11:45 am - 11:10 pm
MAD
-
GEG
20h 25m
2 stops
$802American Airlines
Wed, Apr 22 - Wed, Apr 29
American Airlines Logo
6:44 am - 2:25 pm
BOI
-
MAD
23h 41m
1 stop
American Airlines Logo
10:35 am - 10:17 pm
MAD
-
BOI
19h 42m
2 stops
$805American Airlines
Mon, Aug 17 - Mon, Sep 7
Iberia Logo
2:55 pm - 2:25 pm
BOI
-
MAD
15h 30m
1 stop
Iberia Logo
12:40 pm - 9:40 pm
MAD
-
BOI
17h 00m
1 stop
$828Iberia
Tue, Aug 11 - Tue, Aug 25
United Airlines Logo
10:51 am - 8:50 am
JAC
-
MAD
37h 59m
2 stops
United Airlines Logo
12:45 pm - 3:12 pm
MAD
-
JAC
34h 27m
2 stops
$832United Airlines
Wed, Sep 23 - Fri, Oct 16
Iberia Logo
6:00 am - 9:05 am
GEG
-
MAD
18h 05m
1 stop
Iberia Logo
1:00 pm - 8:33 pm
MAD
-
GEG
16h 33m
1 stop
$838Iberia
Wed, Apr 22 - Wed, Apr 29
KLM Logo
2:18 pm - 12:15 pm
BOI
-
MAD
13h 57m
1 stop
KLM Logo
12:45 pm - 10:28 pm
MAD
-
BOI
17h 43m
1 stop
$848KLM
Wed, Apr 22 - Wed, Apr 29
United Airlines Logo
11:09 am - 7:50 pm
GEG
-
MAD
23h 41m
2 stops
United Airlines Logo
5:55 am - 9:04 pm
MAD
-
GEG
24h 09m
2 stops
$898United Airlines
Sun, Aug 9 - Wed, Aug 19

United Airlines flights from Idaho to Madrid

Our best United Airlines deals on Idaho to Madrid flight tickets
United Airlines
Sep 23
JAC10:51 amJackson Hole
37h 59m
2 stops
MAD8:50 amMadrid Barajas
Oct 16
MAD12:45 pmMadrid Barajas
34h 27m
2 stops
JAC3:12 pmJackson Hole
$832
United Airlines
Sep 11
BOI11:46 amBoise Air Term. Gowen Fld
59h 04m
2 stops
MAD6:50 amMadrid Barajas
Sep 22
MAD1:30 pmMadrid Barajas
36h 23m
2 stops
BOI5:53 pmBoise Air Term. Gowen Fld
$872
United Airlines
Sep 15
BOI7:01 pmBoise Air Term. Gowen Fld
51h 49m
2 stops
MAD6:50 amMadrid Barajas
Sep 26
MAD1:30 pmMadrid Barajas
35h 19m
2 stops
BOI4:49 pmBoise Air Term. Gowen Fld
$888

KLM flights from Idaho to Madrid

Our best KLM deals on Idaho to Madrid flight tickets
KLM
Apr 14
BOI2:18 pmBoise Air Term. Gowen Fld
13h 57m
1 stop
MAD12:15 pmMadrid Barajas
Apr 28
MAD10:25 amMadrid Barajas
19h 59m
2 stops
BOI10:24 pmBoise Air Term. Gowen Fld
$893
KLM
Apr 24
BOI2:18 pmBoise Air Term. Gowen Fld
13h 57m
1 stop
MAD12:15 pmMadrid Barajas
May 1
MAD12:45 pmMadrid Barajas
17h 43m
1 stop
BOI10:28 pmBoise Air Term. Gowen Fld
$898
KLM
Apr 21
BOI2:18 pmBoise Air Term. Gowen Fld
13h 57m
1 stop
MAD12:15 pmMadrid Barajas
Apr 28
MAD6:00 amMadrid Barajas
18h 14m
2 stops
BOI4:14 pmBoise Air Term. Gowen Fld
$943

momondo Fare Finder

 
Customize your flight search to find flights from Idaho to Madrid 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 March 28, 2026.
Use the filters below to find and compare flights from Idaho to Madrid that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Mon 8/17

6:30 am-6:50 am

2 stops16h 20m

Madrid Barajas

Mon 9/7

6:25 pm-9:25 pm

2 stops35h 00m

$759

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

Wed 4/22

12:35 pm-10:30 pm

2 stops24h 55m

Madrid Barajas

Wed 4/29

7:00 am-9:11 pm

2 stops23h 11m

$762

JacksonMadrid

JAC - MAD

JACMAD

Jackson Hole

Wed 9/23

4:30 pm-2:25 pm

1 stop13h 55m

Madrid Barajas

Fri 10/16

7:50 pm-11:54 am

2 stops24h 04m

$775

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

Wed 4/22

1:22 pm-1:30 pm

1 stop15h 08m

Madrid Barajas

Wed 4/29

11:45 am-11:10 pm

2 stops20h 25m

$802

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Mon 8/17

6:44 am-2:25 pm

1 stop23h 41m

Madrid Barajas

Mon 9/7

10:35 am-10:17 pm

2 stops19h 42m

$805

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Tue 8/11

2:55 pm-2:25 pm

1 stop15h 30m

Madrid Barajas

Tue 8/25

12:40 pm-9:40 pm

1 stop17h 00m

$828

JacksonMadrid

JAC - MAD

JACMAD

Jackson Hole

Wed 9/23

10:51 am-8:50 am

2 stops37h 59m

Madrid Barajas

Fri 10/16

12:45 pm-3:12 pm

2 stops34h 27m

$832

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

Wed 4/22

6:00 am-9:05 am

1 stop18h 05m

Madrid Barajas

Wed 4/29

1:00 pm-8:33 pm

1 stop16h 33m

$838
Quickest round-trip

BoiseMadrid

BOI - MAD

BOIMAD

Boise Air Term. Gowen Fld

Wed 4/22

2:18 pm-12:15 pm

1 stop13h 57m

Madrid Barajas

Wed 4/29

12:45 pm-10:28 pm

1 stop17h 43m

$848

SpokaneMadrid

GEG - MAD

GEGMAD

Spokane

Sun 8/9

11:09 am-7:50 pm

2 stops23h 41m

Madrid Barajas

Wed 8/19

5:55 am-9:04 pm

2 stops24h 09m

$898

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 Madrid from

How to get the cheapest flight ticket from Idaho to Madrid

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

Can stopping save me money on Idaho to Madrid flights?

You could potentially save up to 35% on your flight if you consider stops on a Idaho to Madrid flight.

Cheap Idaho to Madrid flight deals and tips

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

Fastest flight time

14h 35m

Direct flights

None
The fastest flight from Idaho to Madrid takes 14h 35m
There are no direct flights from Idaho to Madrid. There are no popular flight routes from Idaho to Madrid.
Search flight deals

  • When did momondo last update prices for flights from Idaho to Madrid Barajas Airport?

    Prices for flights from Idaho to Madrid Barajas Airport refresh daily.

  • How many operators does momondo search for flights from Idaho to Madrid Barajas Airport?

  • How old do you have to be to fly from Idaho to Madrid Barajas Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Madrid Barajas Airport.

  • What documentation or ID do you need to fly to Madrid Barajas Airport?

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

Best airlines flying from Idaho to Madrid

Compare and see reviews for airlines that fly from Idaho to Madrid with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $489Free CancellationRating
7.1
11,520 reviews
Search American Airlines flights
IberiaPriceFrom $489Free CancellationRating
7.0
3,157 reviews
Search Iberia flights
United AirlinesPriceFrom $493Free CancellationRating
7.4
9,500 reviews
Search United Airlines flights
DeltaPriceFrom $550Free CancellationRating
7.9
8,353 reviews
Search Delta flights

Traveling to a place near Madrid?

Book flights to Madrid if you plan to visit one of these locations
Toledo
Segovia
Fuenlabrada
Getafe
Cuenca
San Lorenzo de El Escorial
Guadalajara

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Idaho to Madrid. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Idaho to Madrid on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Madrid from Idaho.

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

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

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Fly your favorite airline to Madrid

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Iberia
American Airlines
Delta
United Airlines