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$371+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — CHI
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$440
(Finnair)

One-way from

$371
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$562
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 ($202 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 March 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 March 28, 2025.

This Finnair deal was found by Cheapflights users on 3/27. 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.
Thu 4/249:15 amBIO - ORD
1 stop12h 00mMultiple Airlines
Mon 4/2810:10 pmORD - BIO
1 stop18h 05mMultiple Airlines
Deal found 3/27$440
This Finnair deal was found by Cheapflights users on 3/26. 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.
Thu 4/246:45 amBIO - ORD
1 stop14h 30mFinnair
Mon 4/2810:10 pmORD - BIO
1 stop18h 05mFinnair
Deal found 3/26$441
This Iberia deal was found by Cheapflights users on 3/27. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/241:30 pmBIO - ORD
1 stop12h 20mIberia
Mon 4/2811:36 amORD - BIO
2 stops18h 09mIberia
Deal found 3/27$451
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Tue 6/39:15 amBIO - ORD
1 stop12h 00mAmerican Airlines
Sat 9/134:45 pmORD - BIO
2 stops13h 00mAmerican Airlines
Deal found 3/27$526
This Delta deal was found by Cheapflights users on 3/27. 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 4/246:50 amBIO - MDW
2 stops18h 30mDelta
Mon 4/281:16 pmMDW - BIO
2 stops14h 09mDelta
Deal found 3/27$564
This KLM deal was found by Cheapflights users on 3/26. 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 4/175:15 pmBIO - ORD
1 stop27h 55mKLM
Thu 4/244:20 pmORD - BIO
1 stop23h 25mKLM
Deal found 3/26$565
This Lufthansa deal was found by Cheapflights users on 3/26. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/12:10 pmBIO - ORD
1 stop12h 45mLufthansa
Sun 5/410:30 pmORD - BIO
1 stop12h 55mLufthansa
Deal found 3/26$574
This United Airlines deal was found by Cheapflights users on 3/27. 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 4/266:45 amBIO - ORD
2 stops18h 48mUnited Airlines
Wed 5/71:29 pmORD - BIO
2 stops19h 36mUnited Airlines
Deal found 3/27$581
This Delta deal was found by Cheapflights users on 3/26. 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.
Sat 4/266:50 amBIO - ORD
2 stops21h 41mDelta
Tue 5/65:10 pmORD - BIO
1 stop16h 30mDelta
Deal found 3/26$587
This lol.travel deal was found by Cheapflights users on 3/27. 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 4/248:40 amBIO - ORD
1 stop14h 15mSWISS
Mon 4/286:35 pmORD - BIO
1 stop18h 40mSWISS
Deal found 3/27$594
This Air Canada deal was found by Cheapflights users on 3/27. 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.
Sat 4/266:45 amBIO - ORD
2 stops20h 15mAir Canada
Tue 5/68:40 amORD - BIO
2 stops21h 40mAir Canada
Deal found 3/27$615
This lol.travel deal was found by Cheapflights users on 3/26. 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.
Wed 7/96:25 pmBIO - ORD
1 stop22h 15mTurkish Airlines
Tue 7/227:50 pmORD - BIO
1 stop38h 35mTurkish Airlines
Deal found 3/26$715

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 March 28, 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

Thu 4/24

9:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

Mon 4/28

10:10 pm-11:15 pm

1 stop18h 05m

$440

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 4/24

6:45 am-2:15 pm

1 stop14h 30m

Chicago O'Hare Intl

Mon 4/28

10:10 pm-11:15 pm

1 stop18h 05m

$441

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 4/24

1:30 pm-6:50 pm

1 stop12h 20m

Chicago O'Hare Intl

Mon 4/28

11:36 am-12:45 pm

2 stops18h 09m

$451

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Tue 6/3

9:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

Sat 9/13

4:45 pm-12:45 pm

2 stops13h 00m

$526

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Thu 4/24

6:50 am-6:20 pm

2 stops18h 30m

Chicago Midway

Mon 4/28

1:16 pm-10:25 am

2 stops14h 09m

$564

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 4/17

5:15 pm-2:10 pm

1 stop27h 55m

Chicago O'Hare Intl

Thu 4/24

4:20 pm-10:45 pm

1 stop23h 25m

$565

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 5/1

2:10 pm-7:55 pm

1 stop12h 45m

Chicago O'Hare Intl

Sun 5/4

10:30 pm-6:25 pm

1 stop12h 55m

$574

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Sat 4/26

6:45 am-6:33 pm

2 stops18h 48m

Chicago O'Hare Intl

Wed 5/7

1:29 pm-4:05 pm

2 stops19h 36m

$581

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Sat 4/26

6:50 am-9:31 pm

2 stops21h 41m

Chicago O'Hare Intl

Tue 5/6

5:10 pm-4:40 pm

1 stop16h 30m

$587

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 4/24

8:40 am-3:55 pm

1 stop14h 15m

Chicago O'Hare Intl

Mon 4/28

6:35 pm-8:15 pm

1 stop18h 40m

$594

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/26

Showing 1-10 of 20 results
1
2

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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice 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 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 FlightHub the most. FlightHub 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 March 28, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from Bilbao to Chicago to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

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
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

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
1,321 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

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
1,267 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

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
1,570 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

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
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

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, Finnair ($441), Iberia ($451), and American Airlines ($526) offers the cheapest pricing from Bilbao to Chicago. These flights start at 24% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Bilbao to Chicago one-way?

    $492 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Turkish Airlines and Lufthansa, with prices starting from $551 and $660, respectively.

  • 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 $323). 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
New Buffalo
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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