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$337+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — CHI
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
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Cheap 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 14, 2026.

This Finnair deal was found by Cheapflights users on 3/9. 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 4/96:45 am
BIO
-
ORD
1 stop16h 15m
Finnair
Mon 4/1310:30 pm
ORD
-
BIO
1 stop17h 45m
Finnair
Deal found 3/9$484
This Finnair deal was found by Cheapflights users on 3/11. 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 4/96:45 am
BIO
-
ORD
1 stop16h 15m
Multiple Airlines
Mon 4/137:05 pm
ORD
-
BIO
2 stops21h 10m
Multiple Airlines
Deal found 3/11$485
This Finnair deal was found by Cheapflights users on 3/10. 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.
Mon 4/276:45 am
BIO
-
ORD
1 stop16h 15m
Multiple Airlines
Sat 5/93:15 pm
ORD
-
BIO
2 stops25h 00m
Multiple Airlines
Deal found 3/10$523
This Finnair deal was found by Cheapflights users on 3/9. 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.
Mon 4/276:45 am
BIO
-
ORD
1 stop16h 15m
Finnair
Sat 5/910:40 pm
ORD
-
BIO
1 stop17h 35m
Finnair
Deal found 3/9$525
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 4/99:15 am
BIO
-
ORD
1 stop13h 45m
American Airlines
Mon 4/1310:30 pm
ORD
-
BIO
1 stop27h 00m
American Airlines
Deal found 3/10$526
This Expedia deal was found by Cheapflights users on 3/13. 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.
Wed 10/216:45 am
BIO
-
ORD
1 stop14h 40m
Iberia
Sat 10/3111:45 am
ORD
-
BIO
2 stops14h 45m
Iberia
Deal found 3/13$532
This Trip.com deal was found by Cheapflights users on 3/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/96:45 am
BIO
-
MDW
2 stops18h 55m
KLM
Mon 4/1310:41 am
MDW
-
BIO
2 stops16h 09m
KLM
Deal found 3/10$592
This Trip.com deal was found by Cheapflights users on 3/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:10 am
BIO
-
MDW
2 stops22h 18m
Multiple Airlines
Mon 5/47:16 pm
MDW
-
BIO
2 stops14h 14m
Multiple Airlines
Deal found 3/10$604
This Trip.com deal was found by Cheapflights users on 3/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:25 am
BIO
-
MDW
2 stops21h 06m
KLM
Sun 3/297:20 pm
MDW
-
BIO
2 stops14h 10m
KLM
Deal found 3/9$606
This Delta deal was found by Cheapflights users on 3/13. 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 4/276:45 am
BIO
-
MDW
2 stops18h 13m
Delta
Mon 5/47:16 pm
MDW
-
BIO
2 stops14h 14m
Delta
Deal found 3/13$628
This Delta deal was found by Cheapflights users on 3/10. 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 4/2710:30 am
BIO
-
MDW
2 stops18h 58m
Delta
Sat 5/95:10 pm
MDW
-
BIO
2 stops16h 20m
Delta
Deal found 3/10$636
This Delta deal was found by Cheapflights users on 3/13. 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 4/96:45 am
BIO
-
MDW
2 stops18h 09m
Delta
Mon 4/137:16 pm
MDW
-
BIO
2 stops14h 14m
Delta
Deal found 3/13$645

Find 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 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$484
(Finnair)

One-way from

$337
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$495
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. 26% potential increase in price ($220 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 14, 2026.
Use the filters below to find and compare flights from Bilbao to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 4/9

6:45 am-4:00 pm

1 stop16h 15m

Chicago O'Hare Intl

Mon 4/13

12:30 pm-11:15 pm

2 stops27h 45m

$506

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 4/27

6:45 am-4:00 pm

1 stop16h 15m

Chicago O'Hare Intl

Sat 5/9

3:15 pm-11:15 pm

2 stops25h 00m

$525

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 4/27

9:35 pm-4:00 pm

1 stop25h 25m

Chicago O'Hare Intl

Sat 5/9

11:15 am-8:30 am

2 stops14h 15m

$566

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 4/27

6:50 am-12:55 pm

1 stop13h 05m

Chicago O'Hare Intl

Sat 5/9

5:55 pm-11:25 pm

1 stop22h 30m

$597

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Wed 3/25

7:25 am-10:31 pm

2 stops21h 06m

Chicago Midway

Sun 3/29

7:20 pm-4:30 pm

2 stops14h 10m

$606

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 4/27

6:50 am-3:15 pm

2 stops15h 25m

Chicago O'Hare Intl

Sat 5/9

3:40 pm-5:00 pm

2 stops42h 20m

$628

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Mon 4/27

10:30 am-10:28 pm

2 stops18h 58m

Chicago Midway

Sat 5/9

5:10 pm-4:30 pm

2 stops16h 20m

$636

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Wed 3/25

9:25 am-2:45 pm

2 stops35h 20m

Chicago O'Hare Intl

Sun 3/29

2:20 pm-9:25 am

1 stop12h 05m

$643

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Wed 4/1

6:50 am-7:26 am

2 stops31h 36m

Chicago O'Hare Intl

Sat 4/11

9:30 pm-1:20 pm

2 stops32h 50m

$650

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Wed 7/15

6:45 am-7:40 pm

2 stops19h 55m

Chicago O'Hare Intl

Wed 7/22

4:05 pm-11:15 pm

2 stops24h 10m

$756

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 29 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 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
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 March 14, 2026.
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
7,848 reviews

Food

6.3

Comfort

6.8

Crew

7.6

Boarding

7.0

Entertainment

6.5

Overall

6.8

Reviews

1 / 20
4.0
Okay

Djermouli,Dec 2025

FRA - SFO

I’m sorry the worst airline united food sales I’m diabetic plus high cholesterol pls seats it’s not comfortable plus screen tv broke I try to charge my phone don’t work I’m not flying with united airlines
Lufthansa
6.8
Okay
7,848 reviews
Lufthansa
6.8
Okay
7,848 reviews

Food

6.3

Comfort

6.8

Crew

7.6

Boarding

7.0

Entertainment

6.5

Overall

6.8

Reviews

1 / 20
4.0
Okay

Djermouli,Dec 2025

FRA - SFO

I’m sorry the worst airline united food sales I’m diabetic plus high cholesterol pls seats it’s not comfortable plus screen tv broke I try to charge my phone don’t work I’m not flying with united airlines

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 British Airways, United Airlines, and KLM fly from Bilbao to Chicago in about 13h 05m. The time it takes to get you to your destination can typically vary by up to 12h 20m. 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
Lansing
Merrillville
Hammond
Porter
Benton Harbor

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