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Bilbao

$367+ Cheap flights from O'Hare Intl (ORD) to Bilbao (BIO)

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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BIO
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Bilbao (BIO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 22, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$785
(TAP AIR PORTUGAL)

One-way from

$741
(TAP AIR PORTUGAL)

Popular in

June

Cheapest in

November

Average price

$733
Provider with most accurate pricing for Chicago O'Hare Intl-Bilbao flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Bilbao flights.
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From Chicago O'Hare Intl to Bilbao
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One-way flight from Chicago O'Hare Intl to Bilbao
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Highest demand for flights based on searches. 22% potential increase in price ($253 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from O'Hare Intl to Bilbao

Cheapest flights from O'Hare Intl to Bilbao
Explore the most affordable flight options available from O'Hare Intl to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/911:25 amORD - BIO
1 stop16h 40mTurkish Airlines
Wed 10/226:25 pmBIO - ORD
1 stop22h 15mTurkish Airlines
Deal found 4/20$594
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/106:00 pmORD - BIO
1 stop16h 35mTAP AIR PORTUGAL
Wed 10/2212:25 pmBIO - ORD
1 stop31h 10mTAP AIR PORTUGAL
Deal found 4/20$609
This United deal was found by Cheapflights users on 4/22. 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.
Tue 10/144:00 pmORD - BIO
1 stop19h 20mMultiple Airlines
Tue 10/216:45 amBIO - ORD
2 stops20h 26mMultiple Airlines
Deal found 4/22$633
This Booking.com deal was found by Cheapflights users on 4/22. 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.
Tue 10/1410:40 amORD - BIO
2 stops22h 25mAir Canada
Tue 10/216:45 amBIO - ORD
2 stops20h 26mAir Canada
Deal found 4/22$634
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1010:35 pmORD - BIO
2 stops26h 55mIberia
Wed 10/229:15 amBIO - ORD
1 stop12h 00mIberia
Deal found 4/20$682
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.
Thu 10/97:10 amORD - BIO
2 stops24h 35mUnited Airlines
Thu 10/236:45 amBIO - ORD
2 stops34h 06mUnited Airlines
Deal found 4/21$684
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/15:25 pmORD - BIO
2 stops13h 25mAmerican Airlines
Mon 11/109:35 pmBIO - ORD
1 stop23h 55mAmerican Airlines
Deal found 4/21$693
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:10 pmORD - BIO
2 stops15h 30mDelta
Thu 10/236:50 amBIO - ORD
2 stops18h 48mDelta
Deal found 4/20$727
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/264:00 pmORD - BIO
1 stop14h 25mLufthansa
Sun 10/56:45 amBIO - ORD
1 stop13h 10mLufthansa
Deal found 4/20$746
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/97:05 pmORD - BIO
1 stop11h 30mSWISS
Sun 10/1911:50 amBIO - ORD
2 stops31h 20mSWISS
Deal found 4/20$757
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2010:35 pmORD - BIO
1 stop16h 20mFinnair
Fri 8/86:45 amBIO - ORD
1 stop18h 30mFinnair
Deal found 4/21$958
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/224:20 pmORD - BIO
1 stop23h 25mKLM
Thu 5/295:15 pmBIO - ORD
1 stop27h 55mKLM
Deal found 4/21$1,304

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl 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 April 22, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Bilbao that are best for you.

Fly from

O'Hare Intl

Fly to

Bilbao

Route

Depart

Return

Price

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 5/12

8:40 am-2:00 pm

2 stops22h 20m

Bilbao

Mon 5/19

2:25 pm-12:10 pm

2 stops28h 45m

$718

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 7/20

10:35 pm-9:55 pm

1 stop16h 20m

Bilbao

Fri 8/8

6:45 am-6:15 pm

1 stop18h 30m

$958

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 7/20

3:35 pm-11:05 am

1 stop12h 30m

Bilbao

Fri 8/8

12:30 pm-9:16 pm

2 stops15h 46m

$965

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 6/5

4:55 pm-11:30 am

1 stop11h 35m

Bilbao

Thu 6/12

12:15 pm-4:10 pm

1 stop34h 55m

$1,005

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 4/30

7:50 pm-11:05 am

1 stop32h 15m

Bilbao

Tue 5/6

12:05 pm-9:40 am

1 stop28h 35m

$1,061

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 6/4

9:40 pm-11:25 pm

1 stop18h 45m

Bilbao

Wed 6/11

11:50 am-6:15 pm

1 stop13h 25m

$1,091

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 6/5

10:40 am-2:45 pm

2 stops21h 05m

Bilbao

Thu 6/12

6:45 am-7:59 am

2 stops32h 14m

$1,110

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 5/20

7:05 pm-7:55 am

1 stop29h 50m

Bilbao

Sun 5/25

9:05 am-3:55 pm

1 stop13h 50m

$1,135

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 5/22

9:00 am-11:15 am

2 stops19h 15m

Bilbao

Thu 5/29

6:50 am-2:10 pm

1 stop14h 20m

$1,208

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 5/22

4:20 pm-10:45 pm

1 stop23h 25m

Bilbao

Thu 5/29

5:15 pm-2:10 pm

1 stop27h 55m

$1,304

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 22 results
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Compare providers for flights from O'Hare Intl to Bilbao

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Bilbao in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Bilbao flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago O'Hare Intl Airport-Bilbao flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Bilbao flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Bilbao flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from O'Hare Intl to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from O'Hare Intl 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 Chicago O'Hare Intl Airport to Bilbao

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Bilbao?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bilbao (average of $541). Flying from Chicago O'Hare Intl Airport to Bilbao in June is currently the most expensive (average of $1,178). 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 ORD to BIO?

Find hourly flight availability from O'Hare Intl 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 April 22, 2025.

When flying from Chicago O'Hare Intl Airport to Bilbao, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 41% versus a flight in the afternoon.

Rainfall in Bilbao by month

Plan your trip to Bilbao by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bilbao ranges from 2.4 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Bilbao when rainfall is around 2.4 in.

Temperature in Bilbao by month

Plan your trip to Bilbao by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bilbao, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Bilbao

Get insights into the airlines that provide service to Bilbao. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bilbao. Reviews last updated April 22, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Chicago to Bilbao by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,331 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,582 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 Chicago O'Hare Intl?

    Located just 3.0 mi from the city center, Bilbao is the airport most travelers will use when flying to Bilbao from Chicago O'Hare Intl. Booking flights from Chicago O'Hare Intl to Bilbao (BIO) should be relatively easy as there are 0 daily inbound flights from Chicago O'Hare Intl from 4 different airlines.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Bilbao round-trip?

    Flying on TAP AIR PORTUGAL is currently your cheapest option to Bilbao, with prices starting at $785. Additional round-trip tickets that might be worth considering are offered by Finnair and Turkish Airlines, with the lowest prices starting at $959 and $960, respectively. Users have found that TAP AIR PORTUGAL is 12% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Bilbao one-way?

    The cheapest airlines for a one-way flight from Chicago O'Hare Intl Airport to Bilbao are TAP AIR PORTUGAL ($741), Iberia ($781), and American Airlines ($786).

  • Can I find deals for flights from O'Hare Intl to Bilbao that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Bilbao flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Bilbao?

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

  • Can I find deals for business class flights from O'Hare Intl to Bilbao?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 Chicago O'Hare Intl Airport to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bilbao (average of $541). Flying from Chicago O'Hare Intl Airport to Bilbao in June is currently the most expensive (average of $1,178). 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 O'Hare Intl to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
Midway to Bilbao flights
O'Hare Intl to San Sebastian flights

Top 4 airlines flying from O'Hare Intl to Bilbao

Discover the top 4 airlines that operate flights from O'Hare Intl 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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$567Average$1,046FlexibilityNo cancel feeOn-time75%
IberiaCheapest$578Average$894FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$639Average$1,101FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$646Average$1,079FlexibilityNo cancel feeOn-time76%

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