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$307+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — CHI
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$477
(lol.travel)

One-way from

$307
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$872
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. 20% potential increase in price ($156 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This lol.travel deal was found by Cheapflights users on 7/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:45 amBIO - ORD
1 stop19h 05mFinnair
Tue 9/2310:30 pmORD - BIO
1 stop17h 45mFinnair
Deal found 7/28$477
This Iberia deal was found by Cheapflights users on 7/30. 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 9/49:15 amBIO - ORD
1 stop12h 00mIberia
Mon 9/84:30 pmORD - BIO
1 stop17h 25mIberia
Deal found 7/30$478
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/46:45 amBIO - ORD
1 stop14h 30mAmerican Airlines
Mon 9/88:39 amORD - BIO
2 stops16h 51mAmerican Airlines
Deal found 7/30$482
This Finnair deal was found by Cheapflights users on 7/28. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:45 amBIO - ORD
1 stop14h 30mMultiple Airlines
Mon 9/84:30 pmORD - BIO
1 stop23h 45mMultiple Airlines
Deal found 7/28$517
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:50 amBIO - MDW
2 stops18h 45mDelta
Tue 9/2312:43 pmMDW - BIO
2 stops14h 42mDelta
Deal found 7/28$608
This Delta deal was found by Cheapflights users on 7/29. 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 9/26:50 amBIO - ORD
2 stops20h 33mDelta
Sun 10/126:59 pmORD - BIO
2 stops14h 31mDelta
Deal found 7/29$609
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Tue 9/26:45 amBIO - ORD
2 stops18h 40mUnited Airlines
Sun 9/141:12 pmORD - BIO
2 stops17h 13mUnited Airlines
Deal found 7/29$652
This Turkish Airlines deal was found by Cheapflights users on 7/30. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1712:00 pmBIO - ORD
1 stop29h 05mTurkish Airlines
Sat 11/2211:50 amORD - BIO
1 stop21h 20mTurkish Airlines
Deal found 7/30$995
This lol.travel deal was found by Cheapflights users on 7/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/37:45 pmBIO - ORD
1 stop27h 55mTAP AIR PORTUGAL
Mon 8/256:10 pmORD - BIO
1 stop16h 50mTAP AIR PORTUGAL
Deal found 7/28$1,137

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 July 30, 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 9/18

6:45 am-6:50 pm

1 stop19h 05m

Chicago O'Hare Intl

Tue 9/23

10:30 pm-11:15 pm

1 stop17h 45m

$477

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 9/4

9:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

Mon 9/8

4:30 pm-4:55 pm

1 stop17h 25m

$478

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 9/4

6:45 am-2:15 pm

1 stop14h 30m

Chicago O'Hare Intl

Mon 9/8

8:39 am-8:30 am

2 stops16h 51m

$482

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Thu 9/4

6:45 am-2:15 pm

1 stop14h 30m

Chicago O'Hare Intl

Mon 9/8

4:30 pm-11:15 pm

1 stop23h 45m

$517

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

Thu 9/18

6:50 am-6:35 pm

2 stops18h 45m

Chicago Midway

Tue 9/23

12:43 pm-10:25 am

2 stops14h 42m

$608

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Tue 9/2

6:50 am-8:23 pm

2 stops20h 33m

Chicago O'Hare Intl

Sun 10/12

6:59 pm-4:30 pm

2 stops14h 31m

$609

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Tue 9/2

6:45 am-6:25 pm

2 stops18h 40m

Chicago O'Hare Intl

Sun 9/14

1:12 pm-1:25 pm

2 stops17h 13m

$652

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 11/17

12:00 pm-10:05 am

1 stop29h 05m

Chicago O'Hare Intl

Sat 11/22

11:50 am-4:10 pm

1 stop21h 20m

$995

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 11/17

7:20 pm-9:16 pm

2 stops32h 56m

Chicago O'Hare Intl

Sat 11/22

8:05 am-5:55 pm

2 stops26h 50m

$1,149

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 10/27

11:35 am-7:25 pm

1 stop13h 50m

Chicago O'Hare Intl

Wed 10/29

10:50 pm-6:05 pm

1 stop13h 15m

$2,187

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 18 results
1
2

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 July 30, 2025.
Read reviews from past customers who have flown Delta, KLM, and Finnair 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.
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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 ($477), American Airlines ($485), and Iberia ($499) offers the cheapest pricing from Bilbao to Chicago. These flights start at 19% lower than the current average price 3 months from now.

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

    $431 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Finnair and Lufthansa, with prices starting from $571 and $575, 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 $321). 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
Merrillville
Lansing
Hammond
Benton Harbor
Porter
Valparaiso
Chesterton

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Alternative routes for Bilbao to Chicago

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