HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chicago

$389+ Cheap flights from Bilbao (BIO) to Chicago (CHI)

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — CHI
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bilbao to Chicago 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 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 January 26, 2026.

This lol.travel deal was found by Cheapflights users on 1/26. 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.
Thu 4/96:45 am
BIO
-
ORD
1 stop14h 30m
Finnair
Mon 4/1310:15 pm
ORD
-
BIO
1 stop18h 00m
Finnair
Deal found 1/26$389
This Finnair deal was found by Cheapflights users on 1/26. 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 4/96:45 am
BIO
-
ORD
1 stop16h 15m
Multiple Airlines
Mon 4/133:35 pm
ORD
-
BIO
2 stops24h 40m
Multiple Airlines
Deal found 1/26$405
This American Airlines deal was found by Cheapflights users on 1/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/59:15 am
BIO
-
ORD
1 stop12h 40m
American Airlines
Tue 2/103:55 pm
ORD
-
BIO
2 stops13h 55m
American Airlines
Deal found 1/26$419
This Finnair deal was found by Cheapflights users on 1/26. 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.
Mon 4/276:45 am
BIO
-
ORD
1 stop14h 30m
Finnair
Sat 5/910:25 pm
ORD
-
BIO
1 stop17h 50m
Finnair
Deal found 1/26$423
This American Airlines deal was found by Cheapflights users on 1/24. 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.
Wed 3/116:45 am
BIO
-
ORD
1 stop15h 29m
American Airlines
Wed 3/1811:50 am
ORD
-
BIO
2 stops14h 40m
American Airlines
Deal found 1/24$424
This Iberia deal was found by Cheapflights users on 1/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/56:45 am
BIO
-
ORD
1 stop15h 10m
Iberia
Tue 2/103:55 pm
ORD
-
BIO
2 stops24h 20m
Iberia
Deal found 1/26$440
This Finnair deal was found by Cheapflights users on 1/26. 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.
Mon 4/276:45 am
BIO
-
ORD
2 stops37h 35m
Multiple Airlines
Sat 5/93:35 pm
ORD
-
BIO
2 stops24h 40m
Multiple Airlines
Deal found 1/26$444
This Iberia deal was found by Cheapflights users on 1/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:50 pm
BIO
-
ORD
1 stop21h 30m
Iberia
Wed 5/610:25 pm
ORD
-
BIO
1 stop27h 05m
Iberia
Deal found 1/26$454
This Iberia deal was found by Cheapflights users on 1/24. 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 2/49:35 pm
BIO
-
ORD
1 stop24h 20m
Iberia
Sun 2/83:55 pm
ORD
-
BIO
2 stops21h 55m
Iberia
Deal found 1/24$459
This United Airlines deal was found by Cheapflights users on 1/25. 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 4/156:50 am
BIO
-
ORD
1 stop15h 00m
United Airlines
Sun 5/175:55 pm
ORD
-
BIO
1 stop22h 30m
United Airlines
Deal found 1/25$467
This Delta deal was found by Cheapflights users on 1/24. 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 3/116:50 am
BIO
-
MDW
2 stops21h 41m
Delta
Wed 3/186:07 pm
MDW
-
BIO
2 stops16h 23m
Delta
Deal found 1/24$587
This Delta deal was found by Cheapflights users on 1/25. 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 2/116:50 am
BIO
-
MDW
2 stops17h 39m
Delta
Sun 2/1511:45 am
MDW
-
BIO
2 stops16h 45m
Delta
Deal found 1/25$596

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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$389
(lol.travel)

Popular in

July

Cheapest in

February

Average price

$559
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
Highest demand for flights based on searches. 19% potential increase in price ($146 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 January 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 January 26, 2026.
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 4/9

6:45 am-2:15 pm

1 stop14h 30m

Chicago O'Hare Intl

Mon 4/13

10:15 pm-11:15 pm

1 stop18h 00m

$389

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 4/27

6:45 am-4:00 pm

1 stop16h 15m

Chicago O'Hare Intl

Sat 5/9

3:35 pm-11:15 pm

2 stops24h 40m

$423

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 4/27

6:45 am-2:15 pm

1 stop14h 30m

Chicago O'Hare Intl

Sat 5/9

10:25 pm-11:15 pm

1 stop17h 50m

$423

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Fri 5/1

6:45 am-4:00 pm

1 stop16h 15m

Chicago O'Hare Intl

Wed 5/6

3:35 pm-11:15 pm

2 stops24h 40m

$423

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 2/5

6:45 am-2:55 pm

1 stop15h 10m

Chicago O'Hare Intl

Tue 2/10

3:55 pm-11:15 pm

2 stops24h 20m

$440

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Tue 4/21

6:50 am-7:55 pm

1 stop20h 05m

Chicago O'Hare Intl

Fri 5/15

11:00 am-11:15 am

2 stops17h 15m

$471

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Wed 3/11

6:45 am-9:30 pm

2 stops20h 45m

Chicago O'Hare Intl

Wed 3/18

4:04 pm-11:15 pm

2 stops25h 11m

$483

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 4/9

6:45 am-7:54 pm

2 stops20h 09m

Chicago O'Hare Intl

Mon 4/13

3:35 pm-11:15 pm

2 stops24h 40m

$494

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 4/30

6:50 am-7:55 pm

1 stop20h 05m

Chicago O'Hare Intl

Fri 5/15

9:40 pm-11:25 pm

1 stop18h 45m

$561

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Wed 3/11

6:50 am-10:31 pm

2 stops21h 41m

Chicago Midway

Wed 3/18

6:07 pm-4:30 pm

2 stops16h 23m

$587

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

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 January.
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 January 26, 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
7,747 reviews

Food

6.3

Comfort

6.8

Crew

7.6

Boarding

7.0

Entertainment

6.4

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
7,747 reviews
Lufthansa
6.8
Okay
7,747 reviews

Food

6.3

Comfort

6.8

Crew

7.6

Boarding

7.0

Entertainment

6.4

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 Finnair and Delta fly from Bilbao to Chicago in about 14h 30m. The time it takes to get you to your destination can typically vary by up to 7h 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
Lansing
Merrillville
Hammond
Porter
Benton Harbor

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 Chicago

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