HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$482+ Cheap flights from Bilbao (BIO) to O'Hare Intl (ORD)

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — ORD
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bilbao to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Bilbao to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Bilbao (BIO) to O'Hare Intl (ORD). 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 24, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$509
(lol.travel)

Popular in

June

Cheapest in

March

Average price

$580
Provider with most accurate pricing for Bilbao-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bilbao-Chicago O'Hare Intl flights.
Search Deals
From Bilbao to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($216 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Bilbao to O'Hare Intl

Cheapest flights from Bilbao to O'Hare Intl
Explore the most affordable flight options available from Bilbao to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This lol.travel 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/29:15 amBIO - ORD
1 stop12h 00mIberia
Tue 5/610:15 pmORD - BIO
1 stop18h 00mIberia
Deal found 4/22$482
This lol.travel deal was found by Cheapflights users on 4/23. 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 5/89:35 pmBIO - ORD
1 stop23h 40mMultiple Airlines
Mon 5/124:30 pmORD - BIO
1 stop23h 45mMultiple Airlines
Deal found 4/23$509
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/159:15 amBIO - ORD
2 stops17h 15mAmerican Airlines
Wed 10/151:15 pmORD - BIO
2 stops16h 30mAmerican Airlines
Deal found 4/22$550
This lol.travel deal was found by Cheapflights users on 4/23. 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 5/86:45 amBIO - ORD
2 stops19h 36mFinnair
Mon 5/124:30 pmORD - BIO
1 stop23h 45mFinnair
Deal found 4/23$570
This Delta deal was found by Cheapflights users on 4/23. 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 5/811:05 amBIO - ORD
2 stops19h 53mDelta
Mon 5/1210:05 amORD - BIO
2 stops17h 20mDelta
Deal found 4/23$601
This TAP AIR PORTUGAL 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/177:45 pmBIO - ORD
1 stop27h 55mTAP AIR PORTUGAL
Mon 8/256:10 pmORD - BIO
1 stop16h 50mTAP AIR PORTUGAL
Deal found 4/22$679
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/66:10 pmBIO - ORD
1 stop31h 50mAer Lingus
Fri 6/139:15 pmORD - BIO
1 stop13h 15mAer Lingus
Deal found 4/22$703
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2612:00 pmBIO - ORD
1 stop33h 10mKLM
Wed 5/75:10 pmORD - BIO
1 stop21h 50mKLM
Deal found 4/22$741
This United Airlines 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/106:45 amBIO - ORD
2 stops18h 37mUnited Airlines
Mon 8/259:40 pmORD - BIO
1 stop18h 45mUnited Airlines
Deal found 4/22$750
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1012:05 pmBIO - ORD
1 stop28h 35mTurkish Airlines
Mon 8/2511:25 amORD - BIO
1 stop16h 40mTurkish Airlines
Deal found 4/22$759
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/111:50 amBIO - ORD
2 stops31h 20mSWISS
Tue 5/62:20 pmORD - BIO
2 stops20h 30mSWISS
Deal found 4/22$763
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/157:05 pmBIO - ORD
1 stop22h 55mLufthansa
Tue 8/2610:30 pmORD - BIO
1 stop17h 20mLufthansa
Deal found 4/22$783

Cheapflights Fare Finder

Customize your flight search to find flights from Bilbao to O'Hare Intl 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 24, 2025.
Use the filters below to find and compare flights from Bilbao to Chicago O'Hare Intl Airport that are best for you.

Fly from

Bilbao

Fly to

O'Hare Intl

Route

Depart

Return

Price

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 5/8

9:35 pm-2:15 pm

1 stop23h 40m

Chicago O'Hare Intl

Mon 5/12

4:30 pm-11:15 pm

1 stop23h 45m

$509

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Tue 6/3

9:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

Sat 9/13

10:08 am-8:30 am

2 stops15h 22m

$554

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 5/8

6:45 am-7:21 pm

2 stops19h 36m

Chicago O'Hare Intl

Mon 5/12

4:30 pm-11:15 pm

1 stop23h 45m

$570

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Sat 5/10

6:45 am-6:22 pm

2 stops18h 37m

Chicago O'Hare Intl

Mon 8/25

9:31 pm-10:45 am

2 stops30h 14m

$574

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 5/8

11:05 am-11:58 pm

2 stops19h 53m

Chicago O'Hare Intl

Mon 5/12

10:05 am-10:25 am

2 stops17h 20m

$601

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Sat 5/10

6:35 pm-4:10 pm

1 stop28h 35m

Chicago O'Hare Intl

Mon 8/25

6:10 pm-6:00 pm

1 stop16h 50m

$724

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Sat 5/10

12:05 pm-9:40 am

1 stop28h 35m

Chicago O'Hare Intl

Mon 8/25

11:25 am-11:05 am

1 stop16h 40m

$759

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Fri 7/25

8:40 pm-4:10 pm

1 stop26h 30m

Chicago O'Hare Intl

Sat 8/23

7:15 pm-10:00 am

1 stop31h 45m

$956

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Fri 7/25

6:10 pm-9:04 am

2 stops45h 54m

Chicago O'Hare Intl

Sat 8/23

9:05 pm-5:30 pm

2 stops37h 25m

$1,063

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Compare providers for flights from Bilbao to O'Hare Intl

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 Bilbao to O'Hare Intl in April.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 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 Bilbao-Chicago O'Hare Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Bilbao-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Bilbao-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bilbao-Chicago O'Hare Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant 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 Bilbao-Chicago O'Hare Intl Airport 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 Bilbao to O'Hare Intl

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

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated April 24, 2025.
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,272 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,685 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Turkish Airlines
7.3
Good
3,775 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Scandinavian Airlines
7.3
Good
1,344 reviews
Delta
8.0
Very good
7,920 reviews

Comfort

7.9

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Bilbao to O'Hare Intl. 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 from for flights from Bilbao to Chicago O'Hare Intl?

    Bilbao (BIO), located 3.0 mi from the city center, is the airport you fly out of when you book flights from Bilbao to Chicago O'Hare Intl. 0 airlines have flights from Bilbao to Chicago O'Hare Intl on a regular basis. Booking flights from Bilbao to Chicago O'Hare Intl should not be difficult; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day.

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

    American Airlines, at $554, was found to be the cheapest airline from Bilbao to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include Finnair and United Airlines. American Airlines is currently priced 11% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Bilbao to Chicago O'Hare Intl Airport (average of $245). Flying from Bilbao to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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

Traveling to a place near Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
Schaumburg
Hoffman Estates
Rosemont
Beloit
Racine
Skokie
Naperville
Tinley Park
Kenosha
Rockford
Arlington Heights
Elgin
Joliet
Orland Park
Merrillville
Northbrook
Des Plaines
Lake Geneva
Waukegan
Glenview

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bilbao to O'Hare Intl

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

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.