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$382+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — CHI
May 29 — Jun 51
Fri 5/29
Fri 6/5
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 April 29, 2026.

This Expedia deal was found by Cheapflights users on 4/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:15 am
BIO
-
ORD
1 stop12h 10m
Iberia
Mon 5/117:05 pm
ORD
-
BIO
2 stops18h 45m
Iberia
Deal found 4/25$521
This British Airways deal was found by Cheapflights users on 4/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:15 am
BIO
-
ORD
1 stop12h 10m
British Airways
Mon 5/114:55 pm
ORD
-
BIO
1 stop17h 00m
British Airways
Deal found 4/28$523
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:45 am
BIO
-
ORD
1 stop14h 40m
Iberia
Tue 5/124:55 pm
ORD
-
BIO
1 stop23h 20m
Iberia
Deal found 4/26$531
This American Airlines deal was found by Cheapflights users on 4/27. 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.
Mon 5/49:15 am
BIO
-
ORD
1 stop12h 10m
American Airlines
Mon 5/114:55 pm
ORD
-
BIO
1 stop32h 35m
American Airlines
Deal found 4/27$532
This American Airlines deal was found by Cheapflights users on 4/24. 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.
Fri 5/16:45 am
BIO
-
ORD
1 stop14h 40m
American Airlines
Tue 5/510:30 pm
ORD
-
BIO
1 stop27h 00m
American Airlines
Deal found 4/24$548
This Iberia deal was found by Cheapflights users on 4/24. 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.
Thu 5/76:45 am
BIO
-
ORD
1 stop14h 40m
Iberia
Mon 5/117:05 pm
ORD
-
BIO
2 stops21h 10m
Iberia
Deal found 4/24$556
This Iberia deal was found by Cheapflights users on 4/25. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:15 am
BIO
-
ORD
1 stop12h 10m
Iberia
Sun 6/71:30 pm
ORD
-
BIO
2 stops25h 35m
Iberia
Deal found 4/25$574
This Iberia deal was found by Cheapflights users on 4/27. 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.
Tue 5/59:15 am
BIO
-
ORD
2 stops21h 19m
Iberia
Mon 6/13:06 pm
ORD
-
BIO
2 stops25h 09m
Iberia
Deal found 4/27$577
This Iberia deal was found by Cheapflights users on 4/27. 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.
Fri 5/86:45 am
BIO
-
ORD
1 stop16h 15m
Iberia
Mon 6/13:06 pm
ORD
-
BIO
2 stops25h 09m
Iberia
Deal found 4/27$585
This Iberia deal was found by Cheapflights users on 4/25. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:15 am
BIO
-
ORD
1 stop12h 10m
Iberia
Sun 6/71:30 pm
ORD
-
BIO
2 stops25h 35m
Iberia
Deal found 4/25$592
This Delta deal was found by Cheapflights users on 4/24. 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.
Fri 5/16:45 am
BIO
-
MDW
2 stops22h 43m
Delta
Tue 5/56:00 am
MDW
-
BIO
2 stops20h 50m
Delta
Deal found 4/24$654
This Delta deal was found by Cheapflights users on 4/26. 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.
Thu 5/76:45 am
BIO
-
MDW
2 stops18h 48m
Delta
Tue 5/1210:59 am
MDW
-
BIO
2 stops15h 51m
Delta
Deal found 4/26$655

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 April 29, 2026.

Round-trip from

$595
(Iberia)

One-way from

$382
(American Airlines)

Popular in

July

Cheapest in

February

Average price

$532
From Bilbao to Chicago (CHI)
Search Deals
One-way flight from Bilbao to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($221 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 29, 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

Fri 9/11

2:00 pm-7:55 pm

1 stop12h 55m

Chicago O'Hare Intl

Thu 9/17

10:30 pm-11:10 pm

1 stop17h 40m

$644

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Fri 9/11

6:45 am-10:17 am

2 stops34h 32m

Chicago O'Hare Intl

Thu 9/17

7:05 am-10:45 am

1 stop20h 40m

$704

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Thu 5/21

6:45 am-6:33 pm

2 stops18h 48m

Chicago Midway

Fri 5/29

1:22 pm-11:15 am

2 stops14h 53m

$713

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 5/21

9:15 am-2:25 pm

1 stop12h 10m

Chicago O'Hare Intl

Fri 5/29

7:05 pm-6:35 pm

1 stop16h 30m

$726
Quickest round-trip

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Sat 5/9

6:45 am-2:15 pm

1 stop14h 30m

Chicago O'Hare Intl

Wed 5/27

4:50 pm-11:15 am

1 stop11h 25m

$783

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Sat 5/9

12:00 pm-2:15 pm

1 stop33h 15m

Chicago O'Hare Intl

Tue 5/26

4:20 pm-4:30 pm

1 stop17h 10m

$784

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 6/18

12:00 pm-10:42 pm

2 stops17h 42m

Chicago O'Hare Intl

Mon 6/22

3:22 pm-4:30 pm

2 stops18h 08m

$835

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Wed 7/15

9:15 am-8:59 pm

2 stops18h 44m

Chicago O'Hare Intl

Wed 7/22

4:55 pm-4:55 pm

1 stop17h 00m

$838

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Tue 7/7

6:45 am-6:25 pm

2 stops18h 40m

Chicago Midway

Tue 7/14

11:05 am-9:50 am

2 stops15h 45m

$859

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Wed 7/15

6:45 am-6:25 pm

2 stops18h 40m

Chicago Midway

Wed 7/22

9:19 am-9:50 am

2 stops17h 31m

$859

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

Showing 1-10 of 31 resultsSorted by cheapest first
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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

What is the cheapest month to book a flight from Bilbao to Chicago?

Currently, February is the cheapest month in which you can book a flight from Bilbao to Chicago (average of $378). Flying from Bilbao to Chicago in June is currently the most expensive (average of $655). 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.

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 Lufthansa, United Airlines, and Delta fly from Bilbao to Chicago in about 12h 55m. The time it takes to get you to your destination can typically vary by up to 21h 37m. 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.

  • What is the cheapest month to book a flight from Bilbao to Chicago?

    Currently, February is the cheapest month in which you can book a flight from Bilbao to Chicago (average of $378). Flying from Bilbao to Chicago in June is currently the most expensive (average of $655). 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 Chicago?

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

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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.
Bilbao to O'Hare Intl flights

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