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$353+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — CHI
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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The best prices from Bilbao to Chicago are usually found in January or February, booked 41 days in advance, depart on a Thursday or Monday and return on a Monday

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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$353
(Iberia)

Popular in

July

Cheapest in

January

Average price

$435
Provider with most accurate pricing for Bilbao-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Bilbao-Chicago (CHI) flights.
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From Bilbao to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($166 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in February 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 febrero 20, 2025.

This Iberia deal was found by Cheapflights users on 2/20. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/229:35 pmBIO - ORD
1 stop23h 40mIberia
mar. 4/294:30 pmORD - BIO
1 stop13h 15mIberia
Deal found 2/20$353
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/286:40 pmBIO - ORD
1 stop27h 50mTAP AIR PORTUGAL
dom. 11/28:25 pmORD - BIO
1 stop15h 10mTAP AIR PORTUGAL
Deal found 2/20$424
This Lufthansa deal was found by Cheapflights users on 2/20. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/56:45 pmBIO - ORD
1 stop30h 40mLufthansa
lun. 3/1010:25 pmORD - BIO
1 stop17h 25mLufthansa
Deal found 2/20$462
This KLM deal was found by Cheapflights users on 2/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/2212:00 pmBIO - ORD
1 stop33h 40mKLM
mar. 4/293:30 pmORD - BIO
2 stops13h 25mKLM
Deal found 2/20$498
This Finnair deal was found by Cheapflights users on 2/20. 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.
mar. 6/39:15 amBIO - ORD
1 stop12h 00mMultiple Airlines
sáb. 9/134:30 pmORD - BIO
1 stop23h 45mMultiple Airlines
Deal found 2/20$504
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/39:15 amBIO - ORD
2 stops17h 21mAmerican Airlines
sáb. 9/132:55 pmORD - BIO
2 stops14h 50mAmerican Airlines
Deal found 2/20$522
This United Airlines deal was found by Cheapflights users on 2/20. 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.
mar. 4/226:45 amBIO - ORD
2 stops32h 05mUnited Airlines
mar. 4/299:20 amORD - BIO
2 stops26h 00mUnited Airlines
Deal found 2/20$540
This Delta deal was found by Cheapflights users on 2/20. 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.
mar. 6/36:50 amBIO - MDW
2 stops18h 40mDelta
sáb. 9/136:50 pmMDW - BIO
2 stops14h 40mDelta
Deal found 2/20$560
This Kiwi.com deal was found by Cheapflights users on 2/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/156:10 pmBIO - ORD
1 stop26h 50mAer Lingus
mié. 4/238:50 pmORD - BIO
1 stop13h 40mAer Lingus
Deal found 2/20$663
This Air Canada deal was found by Cheapflights users on 2/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/16:45 amBIO - ORD
2 stops16h 10mAir Canada
mar. 10/282:00 pmORD - BIO
2 stops15h 55mAir Canada
Deal found 2/20$672
This Expedia deal was found by Cheapflights users on 2/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/287:20 amBIO - MDW
2 stops16h 43mMultiple Airlines
dom. 11/25:59 pmMDW - BIO
2 stops21h 21mMultiple Airlines
Deal found 2/20$688
This SWISS deal was found by Cheapflights users on 2/20. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/278:55 amBIO - ORD
1 stop14h 20mSWISS
dom. 11/27:05 pmORD - BIO
2 stops16h 00mSWISS
Deal found 2/20$698

Find flights from Bilbao to Chicago within your budget

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 febrero 20, 2025.

Fly from

Bilbao

Fly to

Chicago

Route

Depart

Return

Price

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

mar. 4/22

9:35 pm-2:15 pm

1 stop23h 40m

Chicago O'Hare Intl

mar. 4/29

4:30 pm-12:45 pm

1 stop13h 15m

$353

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

mié. 3/5

6:45 pm-6:25 pm

1 stop30h 40m

Chicago O'Hare Intl

lun. 3/10

10:25 pm-9:50 pm

1 stop17h 25m

$462

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

mar. 3/4

6:40 pm-3:30 pm

1 stop27h 50m

Chicago O'Hare Intl

dom. 3/9

9:25 pm-6:35 pm

1 stop15h 10m

$496

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

mar. 4/22

12:00 pm-2:40 pm

1 stop33h 40m

Chicago O'Hare Intl

mar. 4/29

3:30 pm-11:55 am

2 stops13h 25m

$498

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

mar. 6/3

9:15 am-2:15 pm

1 stop12h 00m

Chicago O'Hare Intl

sáb. 9/13

4:30 pm-11:15 pm

1 stop23h 45m

$504

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

mar. 6/3

9:15 am-7:36 pm

2 stops17h 21m

Chicago O'Hare Intl

sáb. 9/13

2:55 pm-12:45 pm

2 stops14h 50m

$522

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

mar. 4/22

6:45 am-7:50 am

2 stops32h 05m

Chicago O'Hare Intl

mar. 4/29

9:20 am-6:20 pm

2 stops26h 00m

$540

BilbaoChicago

BIO - MDW

BIOMDW

Bilbao

mar. 6/3

6:50 am-6:30 pm

2 stops18h 40m

Chicago Midway

sáb. 9/13

6:50 pm-4:30 pm

2 stops14h 40m

$560

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

mar. 4/15

6:10 pm-2:00 pm

1 stop26h 50m

Chicago O'Hare Intl

mié. 4/23

8:50 pm-5:30 pm

1 stop13h 40m

$663

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

lun. 3/3

12:10 pm-10:10 am

1 stop29h 00m

Chicago O'Hare Intl

sáb. 3/8

8:30 pm-11:10 am

1 stop31h 40m

$718

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 24 results
1
2
3
  • 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.

Travel insights for flights from Bilbao to Chicago

Get recent, data-driven insights about flights from Bilbao to Chicago including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Bilbao to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Bilbao to Chicago. Price data was last updated on February 14, 2025.

Booking 41 days in advance of your planned departure date is, on average, the best time to get cheap flights from Bilbao to Chicago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 febrero 20, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and SWISS from Bilbao to Chicago to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.5
Good
1,568 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Qatar Airways
7.4
Good
3,609 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Crew

8.5

Boarding

8.2

Comfort

8.0

Food

7.3

Overall

8.0

Entertainment

7.9

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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, Iberia ($353), Lufthansa ($462), and TAP AIR PORTUGAL ($496) offers the cheapest pricing from Bilbao to Chicago. These flights start at 40% lower than the current average price 3 months from now.

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

    $360 is the cheapest one-way deal found within the past few days, from Qatar Airways. You may also be able to find cheap deals on British Airways and Lufthansa, with prices starting from $386 and $468, 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 Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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Alternative routes for Bilbao to Chicago

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