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$343+ Cheap flights from Idaho to Spain

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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — MAD
Jun 21 — Jun 281
Sun 6/21
Sun 6/28
1 adult, Economy
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Cheap flight deals from Idaho to Spain

Cheapest flights from Idaho to Spain
Explore the most affordable flight options available from Idaho to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 22, 2026.

This Delta deal was found by Cheapflights users on 5/19. 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.
Sun 11/810:05 am
GEG
-
AGP
2 stops21h 50m
Delta
Wed 11/184:10 pm
AGP
-
GEG
2 stops40h 32m
Delta
Deal found 5/19$742
This United Airlines deal was found by Cheapflights users on 5/18. 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 11/187:00 am
BOI
-
BIO
2 stops27h 05m
United Airlines
Fri 11/276:45 am
BIO
-
BOI
2 stops19h 10m
United Airlines
Deal found 5/18$743
This Cheapflightsfares deal was found by Cheapflights users on 5/18. 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.
Tue 9/2910:37 am
BOI
-
BIO
2 stops28h 28m
Lufthansa
Tue 10/136:50 am
BIO
-
BOI
2 stops22h 41m
Lufthansa
Deal found 5/18$746
This Delta deal was found by Cheapflights users on 5/19. 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.
Sat 11/75:40 pm
GEG
-
AGP
2 stops38h 15m
Delta
Tue 11/174:10 pm
AGP
-
GEG
2 stops32h 56m
Delta
Deal found 5/19$747
This Delta deal was found by Cheapflights users on 5/17. 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.
Tue 9/2910:23 am
BOI
-
BIO
2 stops23h 07m
Delta
Tue 10/137:10 am
BIO
-
BOI
2 stops23h 58m
Delta
Deal found 5/17$749
This Delta deal was found by Cheapflights users on 5/19. 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.
Sun 11/810:50 am
GEG
-
AGP
2 stops21h 05m
Delta
Thu 11/191:20 pm
AGP
-
GEG
2 stops41h 17m
Delta
Deal found 5/19$755
This United Airlines deal was found by Cheapflights users on 5/18. 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.
Tue 9/296:25 am
BOI
-
BIO
2 stops32h 40m
United Airlines
Tue 10/136:50 am
BIO
-
BOI
2 stops22h 41m
United Airlines
Deal found 5/18$755
This Delta deal was found by Cheapflights users on 5/19. 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.
Sat 11/75:40 pm
GEG
-
AGP
2 stops38h 15m
Delta
Thu 11/191:20 pm
AGP
-
GEG
2 stops41h 17m
Delta
Deal found 5/19$760
This United Airlines deal was found by Cheapflights users on 5/17. 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.
Sun 11/85:00 am
BOI
-
BIO
2 stops34h 05m
United Airlines
Tue 11/1011:35 am
BIO
-
BOI
2 stops43h 30m
United Airlines
Deal found 5/17$761
This United Airlines deal was found by Cheapflights users on 5/20. 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.
Mon 9/287:05 pm
BOI
-
BIO
2 stops20h 20m
United Airlines
Mon 10/122:10 pm
BIO
-
BOI
2 stops41h 42m
United Airlines
Deal found 5/20$763
This United Airlines deal was found by Cheapflights users on 5/18. 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.
Mon 11/94:05 pm
BOI
-
VLC
2 stops47h 05m
United Airlines
Thu 11/121:00 pm
VLC
-
BOI
2 stops33h 56m
United Airlines
Deal found 5/18$766
This American Airlines deal was found by Cheapflights users on 5/19. 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.
Tue 10/1312:45 pm
GEG
-
BCN
2 stops17h 55m
American Airlines
Fri 10/2310:30 am
BCN
-
GEG
2 stops19h 17m
American Airlines
Deal found 5/19$770

Find flight deals from Idaho to Spain

Keep the following information in mind while searching for Idaho to Spain flight deals. Data was last updated May 22, 2026.

Round-trip from

$742
(Delta)

One-way from

$343
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$1,236
From Idaho to Spain
Search Deals
One-way flight from Idaho to Spain
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($386 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($68 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Spain 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 May 22, 2026.
Use the filters below to find and compare flights from Idaho to Spain that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneMálaga

GEG - AGP

GEGAGP

Spokane

Mon 11/9

7:55 am-4:55 pm

2 stops24h 00m

Malaga

Wed 11/18

4:10 pm-6:22 pm

2 stops35h 12m

$742

SpokaneMálaga

GEG - AGP

GEGAGP

Spokane

Tue 11/10

10:45 pm-12:20 pm

2 stops28h 35m

Malaga

Mon 11/16

4:10 pm-4:06 pm

2 stops32h 56m

$742

SpokaneMálaga

GEG - AGP

GEGAGP

Spokane

Mon 11/9

9:10 am-4:55 pm

2 stops22h 45m

Malaga

Mon 11/16

4:10 pm-4:06 pm

2 stops32h 56m

$742

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 11/18

2:43 pm-10:50 pm

2 stops24h 07m

Bilbao

Thu 11/26

6:45 am-9:16 pm

2 stops22h 31m

$743

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 11/18

7:00 am-6:05 pm

2 stops27h 05m

Bilbao

Thu 11/26

6:45 am-9:16 pm

2 stops22h 31m

$743

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-9:16 pm

2 stops22h 31m

$743

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Tue 9/29

10:23 am-5:30 pm

2 stops23h 07m

Bilbao

Tue 10/13

7:10 am-11:08 pm

2 stops23h 58m

$749

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Tue 9/29

2:31 pm-11:05 pm

2 stops24h 34m

Bilbao

Tue 10/13

6:50 am-9:31 pm

2 stops22h 41m

$755

BoiseValencia

BOI - VLC

BOIVLC

Boise Air Term. Gowen Fld

Mon 11/9

4:05 pm-11:10 pm

2 stops47h 05m

Valencia

Thu 11/12

1:00 pm-2:56 pm

2 stops33h 56m

$766

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/20

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Idaho to Spain

Have a flexible travel schedule? Discover the best time to fly to Spain from Idaho 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 Idaho to Spain

What is the cheapest month to book a flight from Idaho to Spain?

Currently, February is the cheapest month in which you can book a flight from Idaho to Spain (average of $467). Flying from Idaho to Spain in June is currently the most expensive (average of $776). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Idaho to Spain. 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 Idaho to Spain?

    A quick flight from Idaho to Spain can take about 24h. Delta provides one of the quickest options available for as low as $742. There are 5298 mi between Idaho and Spain. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Idaho to Spain?

    Currently, February is the cheapest month in which you can book a flight from Idaho to Spain (average of $467). Flying from Idaho to Spain in June is currently the most expensive (average of $776). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Idaho to Spain

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Idaho to Spain

Discover the top 5 airlines that operate flights from Idaho to Spain. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$483Average$776FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$493Average$734FlexibilityNo cancel feeOn-time69%
DeltaCheapest$528Average$869FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$541Average$974FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$856Average$869FlexibilityNo cancel feeOn-time67%

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