Spain

$357+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — MAD
may. 23 — may. 301
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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 abril 23, 2026.

This Air France deal was found by Cheapflights users on 4/20. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/291:15 pm
BOI
-
BIO
2 stops20h 15m
Multiple Airlines
mar. 10/136:45 am
BIO
-
BOI
2 stops19h 48m
Multiple Airlines
Deal found 4/20$742
This United Airlines deal was found by Cheapflights users on 4/20. 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.
mié. 11/186:55 pm
BOI
-
BIO
2 stops20h 10m
United Airlines
jue. 11/266:45 am
BIO
-
BOI
2 stops22h 30m
United Airlines
Deal found 4/20$744
This United Airlines deal was found by Cheapflights users on 4/21. 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.
mar. 9/292:45 pm
BOI
-
BIO
2 stops48h 40m
United Airlines
mar. 10/136:50 am
BIO
-
BOI
2 stops23h 42m
United Airlines
Deal found 4/21$749
This American Airlines deal was found by Cheapflights users on 4/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/21:14 pm
GEG
-
BCN
2 stops17h 51m
American Airlines
mar. 11/1010:40 am
BCN
-
GEG
1 stop19h 15m
American Airlines
Deal found 4/20$766
This Orbitz deal was found by Cheapflights users on 4/20. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/25:25 am
GEG
-
BCN
1 stop18h 25m
Iberia
mar. 11/1010:40 am
BCN
-
GEG
1 stop19h 15m
Iberia
Deal found 4/20$770
This American Airlines deal was found by Cheapflights users on 4/19. 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.
mar. 11/101:11 pm
JAC
-
BCN
2 stops21h 14m
American Airlines
mar. 11/2411:00 am
BCN
-
JAC
2 stops33h 14m
American Airlines
Deal found 4/19$771
This American Airlines deal was found by Cheapflights users on 4/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/1312:45 pm
GEG
-
BCN
2 stops17h 55m
Multiple Airlines
vie. 10/2312:20 pm
BCN
-
GEG
2 stops19h 37m
Multiple Airlines
Deal found 4/20$771
This United Airlines deal was found by Cheapflights users on 4/21. 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.
mié. 8/512:38 pm
BOI
-
BIO
2 stops19h 22m
United Airlines
mié. 8/196:50 am
BIO
-
BOI
2 stops25h 00m
United Airlines
Deal found 4/21$775
This American Airlines deal was found by Cheapflights users on 4/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/111:53 pm
GEG
-
BCN
2 stops19h 32m
American Airlines
mar. 10/2010:15 am
BCN
-
GEG
2 stops19h 32m
American Airlines
Deal found 4/20$782
This British Airways deal was found by Cheapflights users on 4/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/283:50 pm
GEG
-
BCN
2 stops19h 50m
Multiple Airlines
mar. 10/610:15 am
BCN
-
GEG
2 stops19h 32m
Multiple Airlines
Deal found 4/21$784
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/206:44 am
BOI
-
BCN
1 stop19h 26m
Iberia
mar. 10/139:30 pm
BCN
-
BOI
2 stops31h 35m
Iberia
Deal found 4/21$785
This Booking.com deal was found by Cheapflights users on 4/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/206:30 am
BOI
-
BCN
2 stops18h 50m
Air Canada
mar. 10/1312:15 pm
BCN
-
BOI
2 stops41h 16m
Air Canada
Deal found 4/21$792

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 abril 23, 2026.

Round-trip from

$742
(Air France)

One-way from

$357
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$814
From Idaho to Spain
One-way flight from Idaho to Spain
Highest demand for flights based on searches. 29% potential increase in price ($403 potential increase over avg. RT price).
Cheapest flight prices on average. 7% potential price decrease ($70 potential savings vs. average RT price).
Average for round-trip flights in April 2026

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 abril 23, 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

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

mar. 9/29

2:45 pm-11:25 pm

2 stops48h 40m

Bilbao

mar. 10/13

6:50 am-11:52 pm

2 stops25h 02m

$749

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

mié. 9/30

1:58 pm-6:35 pm

2 stops19h 37m

Barcelona-El Prat

mié. 10/21

12:20 pm-10:57 pm

2 stops19h 37m

$771

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

mié. 8/5

12:38 pm-4:00 pm

2 stops19h 22m

Bilbao

mié. 8/19

6:50 am-11:50 pm

2 stops25h 00m

$775

SpokaneMálaga

GEG - AGP

GEGAGP

Spokane

vie. 10/9

3:05 pm-7:15 pm

2 stops19h 10m

Malaga

vie. 10/16

10:45 am-10:48 pm

2 stops21h 03m

$797

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

lun. 9/28

4:05 pm-10:00 pm

2 stops21h 55m

Bilbao

lun. 10/12

10:30 am-11:08 pm

2 stops20h 38m

$799

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

mar. 10/13

11:30 am-1:15 pm

1 stop16h 45m

Barcelona-El Prat

vie. 10/23

4:10 pm-10:30 am

1 stop27h 20m

$809

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

mié. 9/30

5:00 am-1:15 pm

2 stops23h 15m

Barcelona-El Prat

mié. 10/21

4:10 pm-10:30 am

1 stop27h 20m

$814

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

mié. 8/5

12:17 pm-11:15 pm

2 stops26h 58m

Bilbao

mié. 8/19

6:45 am-11:27 am

2 stops36h 42m

$817

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

dom. 8/9

5:20 pm-8:20 pm

2 stops19h 00m

Barcelona-El Prat

jue. 8/20

7:40 am-10:20 pm

2 stops22h 40m

$851

BoiseBarcelona

BOI - BCN

BOIBCN

Boise Air Term. Gowen Fld

lun. 8/10

12:17 pm-10:10 am

1 stop13h 53m

Barcelona-El Prat

vie. 8/21

10:15 am-10:20 pm

2 stops20h 05m

$852

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

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 19h 10m. United Airlines provides one of the quickest options available for as low as $797. 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.

Top 6 airlines flying from Idaho to Spain

Discover the top 6 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 abril 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$483Average$782FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$493Average$711FlexibilityNo cancel feeOn-time69%
DeltaCheapest$529Average$941FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$541Average$901FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$651Average$857FlexibilityNo cancel feeOn-time67%
KLMCheapest$1,145Average$1,317FlexibilityNo cancel feeOn-time75%

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