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$297+ 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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — CHI
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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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 October 20, 2025.

This Expedia deal was found by Cheapflights users on 10/19. 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.
Mon 11/246:45 amBIO - ORD
1 stop14h 45mIberia
Mon 12/14:45 pmORD - BIO
1 stop17h 10mIberia
Deal found 10/19$393
This Finnair deal was found by Cheapflights users on 10/20. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:45 amBIO - ORD
2 stops19h 37mMultiple Airlines
Mon 12/84:45 pmORD - BIO
1 stop13h 05mMultiple Airlines
Deal found 10/20$399
This Iberia deal was found by Cheapflights users on 10/19. 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.
Wed 12/39:35 pmBIO - ORD
1 stop23h 55mIberia
Mon 12/84:45 pmORD - BIO
1 stop17h 10mIberia
Deal found 10/19$404
This Finnair deal was found by Cheapflights users on 10/20. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:45 amBIO - ORD
2 stops19h 42mMultiple Airlines
Thu 12/112:38 pmORD - BIO
2 stops25h 37mMultiple Airlines
Deal found 10/20$418
This United Airlines deal was found by Cheapflights users on 10/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:45 amBIO - ORD
1 stop15h 35mUnited Airlines
Fri 11/76:00 pmORD - BIO
1 stop22h 20mUnited Airlines
Deal found 10/20$423
This United Airlines deal was found by Cheapflights users on 10/19. 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 12/2412:50 pmBIO - ORD
1 stop14h 15mUnited Airlines
Wed 12/316:00 pmORD - BIO
1 stop17h 05mUnited Airlines
Deal found 10/19$424
This United Airlines deal was found by Cheapflights users on 10/19. 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 12/2412:50 pmBIO - ORD
1 stop14h 15mUnited Airlines
Tue 12/304:20 pmORD - BIO
1 stop12h 45mUnited Airlines
Deal found 10/19$425
This Delta deal was found by Cheapflights users on 10/19. 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.
Mon 11/2411:55 amBIO - MDW
2 stops18h 45mDelta
Mon 12/11:15 pmMDW - BIO
2 stops15h 15mDelta
Deal found 10/19$592
This Delta deal was found by Cheapflights users on 10/20. 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 12/46:50 amBIO - MDW
2 stops18h 10mDelta
Thu 12/111:14 pmMDW - BIO
2 stops15h 06mDelta
Deal found 10/20$598
This Delta deal was found by Cheapflights users on 10/19. 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 10/306:50 amBIO - MDW
2 stops21h 24mDelta
Fri 11/75:09 pmMDW - BIO
2 stops17h 11mDelta
Deal found 10/19$650
This Delta deal was found by Cheapflights users on 10/18. 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.
Tue 12/211:55 amBIO - MDW
2 stops18h 54mDelta
Tue 12/99:34 amMDW - BIO
2 stops18h 46mDelta
Deal found 10/18$681
This Delta deal was found by Cheapflights users on 10/19. 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.
Wed 12/36:50 amBIO - MDW
2 stops18h 28mDelta
Mon 12/89:34 amMDW - BIO
2 stops18h 46mDelta
Deal found 10/19$685

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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$393
(Expedia)

One-way from

$297
(lol.travel)

Popular in

July

Cheapest in

January

Average price

$564
Provider with most accurate pricing for Bilbao-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bilbao-Chicago (CHI) flights.
Search Deals
From Bilbao to Chicago (CHI)
Search Deals
One-way flight from Bilbao to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($121 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 20, 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

Wed 12/3

6:45 am-7:22 pm

2 stops19h 37m

Chicago O'Hare Intl

Mon 12/8

4:45 pm-12:50 pm

1 stop13h 05m

$399

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Wed 12/3

9:35 pm-2:30 pm

1 stop23h 55m

Chicago O'Hare Intl

Mon 12/8

4:45 pm-4:55 pm

1 stop17h 10m

$404

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 12/4

6:45 am-2:30 pm

1 stop14h 45m

Chicago O'Hare Intl

Thu 12/11

2:38 pm-11:15 pm

2 stops25h 37m

$408

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 10/30

6:45 am-4:20 pm

1 stop15h 35m

Chicago O'Hare Intl

Fri 11/7

6:00 pm-11:20 pm

1 stop22h 20m

$423

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Wed 12/24

12:50 pm-8:05 pm

1 stop14h 15m

Chicago O'Hare Intl

Tue 12/30

4:20 pm-12:05 pm

1 stop12h 45m

$425

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Fri 2/6

6:50 am-6:34 pm

2 stops18h 44m

Chicago Midway

Sat 2/14

1:00 pm-4:30 pm

2 stops20h 30m

$586

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Mon 11/24

6:50 am-6:18 pm

2 stops18h 28m

Chicago Midway

Mon 12/1

5:34 pm-5:20 pm

2 stops16h 46m

$594

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Thu 12/4

6:50 am-6:00 pm

2 stops18h 10m

Chicago Midway

Thu 12/11

1:14 pm-11:20 am

2 stops15h 06m

$598

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Thu 10/30

6:50 am-10:14 pm

2 stops21h 24m

Chicago Midway

Fri 11/7

5:09 pm-5:20 pm

2 stops17h 11m

$650

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Tue 12/2

11:55 am-11:49 pm

2 stops18h 54m

Chicago Midway

Tue 12/9

9:34 am-11:20 am

2 stops18h 46m

$681

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 21 results
1
2
3

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 October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 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 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
No data available for this route at this time. Please check back soon.

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 October 20, 2025.
Read reviews from past customers who have flown Lufthansa from Bilbao to Chicago. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,508 reviews

Food

6.3

Entertainment

6.4

Overall

6.8

Comfort

6.8

Boarding

7.0

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jan 2025

FRA - TPA

I had ordered a gluten-free meal through you I double triple checked that through you got screamed at by one of your representatives. She yelled at me and said that she had ordered the mail, she had chosen my seat, and made sure that all my baggage is were paid for. That was a lie. My experience with discover airlines in and of itself was GOOD but your representative was out of line did not do anything that she screamed at me and told me she did and I literally had to call the airlines myself to get my seat selected to double check on my gluten-free meal which still was not on board and to pay for my bags which I thought that I paid for all of them until I got to the airport and I still had to pay for my check back. So cheap flights I will never use you again.
Lufthansa
6.8
Okay
7,508 reviews
Lufthansa
6.8
Okay
7,508 reviews

Food

6.3

Entertainment

6.4

Overall

6.8

Comfort

6.8

Boarding

7.0

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Jan 2025

FRA - TPA

I had ordered a gluten-free meal through you I double triple checked that through you got screamed at by one of your representatives. She yelled at me and said that she had ordered the mail, she had chosen my seat, and made sure that all my baggage is were paid for. That was a lie. My experience with discover airlines in and of itself was GOOD but your representative was out of line did not do anything that she screamed at me and told me she did and I literally had to call the airlines myself to get my seat selected to double check on my gluten-free meal which still was not on board and to pay for my bags which I thought that I paid for all of them until I got to the airport and I still had to pay for my check back. So cheap flights I will never use you again.

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.

  • How long is the flight from Bilbao to Chicago?

    Airlines like Iberia and Delta fly from Bilbao to Chicago in about 18h 44m. The time it takes to get you to your destination can typically vary by up to 5h 11m. The distance from Bilbao to Chicago is about 4116 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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.

See more FAQs

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Porter
Benton Harbor
Chesterton

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