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$480+ Cheap flights from Spain to Idaho

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — BOI
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from Spain to Idaho

Cheapest flights from Spain to Idaho
Explore the most affordable flight options available from Spain to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:25 am
MAD
-
JAC
2 stops20h 28m
United Airlines
Wed 4/222:35 pm
JAC
-
MAD
2 stops33h 30m
United Airlines
Deal found 2/1$838
This lol.travel deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1910:40 am
BCN
-
BOI
1 stop19h 42m
Finnair
Mon 2/237:00 am
BOI
-
BCN
1 stop17h 50m
Finnair
Deal found 2/1$868
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:50 am
BCN
-
IDA
2 stops34h 58m
United Airlines
Mon 2/235:33 pm
IDA
-
BCN
2 stops31h 27m
United Airlines
Deal found 2/3$894
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:50 am
BCN
-
GEG
2 stops23h 27m
United Airlines
Sun 2/224:02 pm
GEG
-
BCN
2 stops55h 18m
United Airlines
Deal found 2/2$894
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/199:55 am
BCN
-
BOI
2 stops19h 16m
United Airlines
Mon 2/235:24 pm
BOI
-
BCN
2 stops30h 56m
United Airlines
Deal found 2/1$895
This Cheapflightsfares deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/15:50 am
BCN
-
GEG
2 stops24h 27m
Lufthansa
Mon 3/91:37 pm
GEG
-
BCN
2 stops25h 28m
Lufthansa
Deal found 2/2$902
This KLM deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:00 am
BCN
-
BOI
2 stops20h 22m
KLM
Mon 2/231:43 pm
BOI
-
BCN
1 stop34h 57m
KLM
Deal found 2/1$905
This American Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1910:40 am
BCN
-
IDA
1 stop35h 08m
American Airlines
Mon 2/232:18 pm
IDA
-
BCN
1 stop34h 32m
American Airlines
Deal found 2/3$905
This KLM deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:00 am
BCN
-
GEG
2 stops17h 58m
KLM
Sun 2/2212:48 pm
GEG
-
BCN
1 stop34h 52m
KLM
Deal found 2/2$905
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:00 am
MAD
-
GEG
2 stops22h 57m
Delta
Sun 2/227:30 pm
GEG
-
MAD
2 stops27h 30m
Delta
Deal found 2/2$906
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1811:15 am
MAD
-
GEG
2 stops42h 52m
United Airlines
Sun 2/224:02 pm
GEG
-
MAD
2 stops32h 13m
United Airlines
Deal found 2/2$910
This KLM deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:05 am
MAD
-
GEG
2 stops21h 52m
KLM
Sun 2/2212:48 pm
GEG
-
MAD
1 stop35h 27m
KLM
Deal found 2/2$914

Find flight deals from Spain to Idaho

Keep the following information in mind while searching for Spain to Idaho flight deals. Data was last updated February 3, 2026.

Round-trip from

$838
(United Airlines)

One-way from

$480
(Kiwi.com)
From Spain to Idaho
Search Deals
One-way flight from Spain to Idaho
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Spain to Idaho 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, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Spain to Idaho that are best for you.

Fly from

Spain

Fly to

Idaho

Route

Depart

Return

Price

MadridJackson

MAD - JAC

MADJAC

Madrid Barajas

Sat 4/18

8:25 am-8:53 pm

2 stops20h 28m

Jackson Hole

Wed 4/22

2:35 pm-8:05 am

2 stops33h 30m

$838

BarcelonaBoise

BCN - BOI

BCNBOI

Barcelona-El Prat

Thu 2/19

10:40 am-10:22 pm

1 stop19h 42m

Boise Air Term. Gowen Fld

Mon 2/23

7:00 am-8:50 am

1 stop17h 50m

$868

BarcelonaIdaho Falls

BCN - IDA

BCNIDA

Barcelona-El Prat

Thu 2/19

6:50 am-9:48 am

2 stops34h 58m

Idaho Falls Fanning Field

Mon 2/23

5:33 pm-9:00 am

2 stops31h 27m

$894

BarcelonaSpokane

BCN - GEG

BCNGEG

Barcelona-El Prat

Wed 2/18

6:50 am-9:17 pm

2 stops23h 27m

Spokane

Sun 2/22

4:02 pm-8:20 am

2 stops55h 18m

$894

BarcelonaBoise

BCN - BOI

BCNBOI

Barcelona-El Prat

Thu 2/19

9:55 am-9:11 pm

2 stops19h 16m

Boise Air Term. Gowen Fld

Mon 2/23

5:24 pm-8:20 am

2 stops30h 56m

$895

BarcelonaSpokane

BCN - GEG

BCNGEG

Barcelona-El Prat

Sun 3/1

5:50 am-9:17 pm

2 stops24h 27m

Spokane

Mon 3/9

1:37 pm-11:05 pm

2 stops25h 28m

$902

BarcelonaBoise

BCN - BOI

BCNBOI

Barcelona-El Prat

Thu 2/19

6:00 am-6:22 pm

2 stops20h 22m

Boise Air Term. Gowen Fld

Mon 2/23

1:43 pm-8:40 am

1 stop34h 57m

$905

BarcelonaIdaho Falls

BCN - IDA

BCNIDA

Barcelona-El Prat

Thu 2/19

10:40 am-1:48 pm

1 stop35h 08m

Idaho Falls Fanning Field

Mon 2/23

2:18 pm-8:50 am

1 stop34h 32m

$905

BarcelonaSpokane

BCN - GEG

BCNGEG

Barcelona-El Prat

Wed 2/18

6:00 am-2:58 pm

2 stops17h 58m

Spokane

Sun 2/22

12:48 pm-8:40 am

1 stop34h 52m

$905

MadridSpokane

MAD - GEG

MADGEG

Madrid Barajas

Wed 2/18

6:00 am-7:57 pm

2 stops22h 57m

Spokane

Sun 2/22

7:30 pm-8:00 am

2 stops27h 30m

$906

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 60 results
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Best time to book a flight from Spain to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Spain with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Spain to Idaho
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Spain to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Spain to Idaho?

    United Airlines, Finnair, and Lufthansa can get you from Spain to Idaho in just under 19h 42m. Your travel time can differ by up to 4h 45m. The distance from Spain to Idaho is about 5431 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Spain to Idaho that include hotel bookings?

    Yes. In addition to deals on Spain to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Spain to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Spain to Idaho.

  • Can I find deals for business class flights from Spain to Idaho?

    Yes. Cheapflights offers flight deals from Spain to Idaho by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Spain to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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