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Bilbao

$576+ Cheap flights from Idaho to Bilbao (BIO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — BIO
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Idaho to Bilbao

Keep the following information in mind while searching for Idaho to Bilbao flight deals. Data was last updated September 15, 2025.

Round-trip from

$576
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$746
From Idaho to Bilbao
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($373 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Idaho to Bilbao

Cheapest flights from Idaho to Bilbao
Explore the most affordable flight options available from Idaho to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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 11/58:25 amBOI - BIO
2 stops30h 40mUnited Airlines
Fri 11/146:45 amBIO - BOI
3 stops38h 59mUnited Airlines
Deal found 9/14$576
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/112:36 pmBOI - BIO
2 stops43h 14mUnited Airlines
Fri 10/316:45 amBIO - BOI
2 stops23h 00mUnited Airlines
Deal found 9/13$581
This United deal was found by Cheapflights users on 9/13. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/115:39 pmBOI - BIO
2 stops40h 46mMultiple Airlines
Fri 10/3111:35 amBIO - BOI
3 stops33h 09mMultiple Airlines
Deal found 9/13$596
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/256:31 amBOI - BIO
2 stops25h 34mUnited Airlines
Sat 10/46:45 amBIO - BOI
2 stops22h 39mUnited Airlines
Deal found 9/14$781
This KAYAK deal was found by Cheapflights users on 9/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/252:39 pmBOI - BIO
2 stops43h 11mLufthansa
Sat 10/46:45 amBIO - BOI
2 stops22h 39mLufthansa
Deal found 9/12$990
This American Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 11/57:00 amBOI - BIO
2 stops27h 50mMultiple Airlines
Thu 11/139:15 amBIO - BOI
3 stops21h 05mMultiple Airlines
Deal found 9/13$2,890
This Delta deal was found by Cheapflights users on 9/13. 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.
Thu 9/2511:00 amBOI - BIO
2 stops21h 40mDelta
Sat 10/47:10 amBIO - BOI
2 stops23h 50mDelta
Deal found 9/13$3,434
This American Airlines deal was found by Cheapflights users on 9/12. 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 9/251:37 pmBOI - BIO
2 stops23h 13mMultiple Airlines
Sat 10/49:15 amBIO - BOI
3 stops21h 50mMultiple Airlines
Deal found 9/12$6,601

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Bilbao 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 September 15, 2025.
Use the filters below to find and compare flights from Idaho to Bilbao that are best for you.

Fly from

Idaho

Fly to

Bilbao

Route

Depart

Return

Price

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 11/5

10:40 am-11:05 pm

2 stops28h 25m

Bilbao

Fri 11/14

12:50 pm-1:44 pm

3 stops32h 54m

$576

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 11/5

2:40 pm-11:05 pm

2 stops24h 25m

Bilbao

Thu 11/13

6:45 am-10:45 pm

2 stops24h 00m

$576

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sat 10/11

2:36 pm-5:50 pm

2 stops43h 14m

Bilbao

Fri 10/31

6:45 am-10:45 pm

2 stops23h 00m

$581

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Sat 10/11

5:39 pm-6:25 pm

2 stops40h 46m

Bilbao

Fri 10/31

11:35 am-1:44 pm

3 stops33h 09m

$596

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Thu 9/25

6:31 am-4:05 pm

2 stops25h 34m

Bilbao

Sat 10/4

6:45 am-9:24 pm

2 stops22h 39m

$781

BoiseBilbao

BOI - BIO

BOIBIO

Boise Air Term. Gowen Fld

Wed 11/5

7:00 am-6:50 pm

2 stops27h 50m

Bilbao

Thu 11/13

9:15 am-10:20 pm

3 stops21h 05m

$2,890

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Best time to book a flight from Idaho to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao 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 Bilbao

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

Currently, January is the cheapest month in which you can book a flight from Idaho to Bilbao (average of $541). Flying from Idaho to Bilbao in June is currently the most expensive (average of $1,136). 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.

What is the cheapest time of day to fly from ID to BIO?

Find hourly flight availability from Idaho to Bilbao. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Idaho to Bilbao, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

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

  • What airport do you fly into for flights to Bilbao from Idaho?

    If you book a flight to Bilbao from Idaho, you will be flying to Bilbao, which is the city’s only airport. Bilbao (BIO) is located 3.0 mi from the center of Bilbao.

  • How long is the flight from Idaho to Bilbao?

    Departing from Idaho to Bilbao will take you 28h 25m. There are 5157 mi between Idaho and Bilbao.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho to Bilbao 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 Bilbao?

    Currently, January is the cheapest month in which you can book a flight from Idaho to Bilbao (average of $541). Flying from Idaho to Bilbao in June is currently the most expensive (average of $1,136). 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

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Alternative routes for Idaho to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Idaho to Bilbao

Discover the top 3 airlines that operate flights from Idaho to Bilbao. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$570Average$759FlexibilityNo cancel feeOn-time69%
DeltaCheapest$617Average$1,318FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$664Average$1,317FlexibilityNo cancel feeOn-time75%

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