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$350+ Cheap flights from Bilbao (BIO) to Chicago (CHI)

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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — CHI
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Bilbao to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Bilbao (BIO) to Chicago (CHI). 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 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$464
(lol.travel)

One-way from

$350
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$590
Provider with most accurate pricing for Bilbao-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Bilbao-Chicago (CHI) flights.
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From Bilbao to Chicago (CHI)
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One-way flight from Bilbao to Chicago (CHI)
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Highest demand for flights based on searches. 25% potential increase in price ($195 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($30 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 Bilbao to Chicago

Cheapest flights from Bilbao to Chicago
Explore the most affordable flight options available from Bilbao to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This lol.travel deal was found by Cheapflights users on 4/29. 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.
Mon 5/199:35 pmBIO - ORD
1 stop23h 40mMultiple Airlines
Mon 5/264:30 pmORD - BIO
1 stop23h 45mMultiple Airlines
Deal found 4/29$473
This Flighttix deal was found by Cheapflights users on 4/29. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/199:15 amBIO - ORD
1 stop12h 00mIberia
Mon 5/263:20 pmORD - BIO
2 stops14h 25mIberia
Deal found 4/29$489
This lol.travel deal was found by Cheapflights users on 4/29. 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 5/236:45 amBIO - ORD
1 stop19h 05mFinnair
Wed 5/284:30 pmORD - BIO
1 stop23h 45mFinnair
Deal found 4/29$492
This American Airlines deal was found by Cheapflights users on 4/29. 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 5/269:15 amBIO - ORD
1 stop12h 00mAmerican Airlines
Mon 6/211:45 amORD - BIO
2 stops13h 45mAmerican Airlines
Deal found 4/29$534
This Delta deal was found by Cheapflights users on 4/29. 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 5/296:50 amBIO - MDW
2 stops18h 55mDelta
Thu 6/59:16 amMDW - BIO
2 stops18h 09mDelta
Deal found 4/29$591
This KLM deal was found by Cheapflights users on 4/29. 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 5/2912:00 pmBIO - ORD
1 stop33h 10mKLM
Thu 6/54:20 pmORD - BIO
1 stop11h 55mKLM
Deal found 4/29$591
This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 5/237:10 amBIO - ORD
1 stop14h 50mDelta
Wed 5/287:25 pmORD - BIO
2 stops14h 05mDelta
Deal found 4/29$620
This United Airlines deal was found by Cheapflights users on 4/29. 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 6/1112:30 pmBIO - ORD
1 stop13h 07mUnited Airlines
Thu 6/196:25 pmORD - BIO
1 stop16h 55mUnited Airlines
Deal found 4/29$773
This Air Canada deal was found by Cheapflights users on 4/29. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/16:45 amBIO - ORD
2 stops32h 14mAir Canada
Tue 7/81:01 pmORD - BIO
2 stops22h 19mAir Canada
Deal found 4/29$787
This SmartFares deal was found by Cheapflights users on 4/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1312:05 pmBIO - ORD
1 stop28h 35mTurkish Airlines
Fri 6/2011:25 amORD - BIO
1 stop16h 40mTurkish Airlines
Deal found 4/29$864

Cheapflights Fare Finder

Customize your flight search to find flights from Bilbao to Chicago 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 29, 2025.
Use the filters below to find and compare flights from Bilbao to Chicago that are best for you.

Fly from

Bilbao

Fly to

Chicago

Route

Depart

Return

Price

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 5/19

9:35 pm-2:15 pm

1 stop23h 40m

Chicago O'Hare Intl

Mon 5/26

4:30 pm-11:15 pm

1 stop23h 45m

$473

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 5/19

9:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

Mon 5/26

3:20 pm-12:45 pm

2 stops14h 25m

$489

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Fri 5/23

6:45 am-6:50 pm

1 stop19h 05m

Chicago O'Hare Intl

Wed 5/28

4:30 pm-11:15 pm

1 stop23h 45m

$492

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 5/26

9:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

Mon 6/2

11:45 am-8:30 am

2 stops13h 45m

$534

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Thu 5/29

6:50 am-6:45 pm

2 stops18h 55m

Chicago Midway

Thu 6/5

9:16 am-10:25 am

2 stops18h 09m

$591

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 5/29

12:00 pm-2:10 pm

1 stop33h 10m

Chicago O'Hare Intl

Thu 6/5

4:20 pm-11:15 am

1 stop11h 55m

$591

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Fri 5/23

7:10 am-3:00 pm

1 stop14h 50m

Chicago O'Hare Intl

Wed 5/28

7:25 pm-4:30 pm

2 stops14h 05m

$620

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Wed 6/11

12:30 pm-6:37 pm

1 stop13h 07m

Chicago O'Hare Intl

Thu 6/19

6:25 pm-6:20 pm

1 stop16h 55m

$773

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Tue 7/1

6:45 am-7:59 am

2 stops32h 14m

Chicago O'Hare Intl

Tue 7/8

1:01 pm-6:20 pm

2 stops22h 19m

$787

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Fri 6/13

12:05 pm-9:40 am

1 stop28h 35m

Chicago O'Hare Intl

Fri 6/20

11:25 am-11:05 am

1 stop16h 40m

$864

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 14 results
1
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Compare providers for flights from Bilbao to Chicago

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 Chicago in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 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 flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bilbao-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bilbao-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bilbao-Chicago 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 Bilbao-Chicago 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 Chicago

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

Rainfall in Chicago by month

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

In terms of precipitation, rainfall in Chicago 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 when rainfall is around 1.7 in.

Temperature in Chicago by month

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

If weather is an important factor for your trip to Chicago, 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 Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated April 29, 2025.
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

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
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

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
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

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
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

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
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,929 reviews

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

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 Chicago. 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?

    For a flight from Bilbao to Chicago, you will be flying from Bilbao. Bilbao (BIO) is just 3.0 mi from the center of the city. Bilbao is the only Bilbao airport and it handles 0 outbound flights to Chicago per day. 0 airlines have flights to Chicago from Bilbao on a regular basis.

  • What are the cheapest airlines flying from Bilbao to Chicago round-trip?

    According to our current data, Iberia ($464), American Airlines ($534), and United Airlines ($585) offers the cheapest pricing from Bilbao to Chicago. These flights start at 19% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bilbao to Chicago 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?

    Currently, August is the cheapest month in which you can book a flight from Bilbao to Chicago (average of $245). Flying from Bilbao to Chicago 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
Merrillville
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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Alternative routes for Bilbao to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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