HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$383+ Cheap flights from Bilbao (BIO) to O'Hare Intl (ORD)

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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
BIO — ORD
May 24 — May 311
Sun 5/24
Sun 5/31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bilbao to O'Hare Intl 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 O'Hare Intl

Cheapest flights from Bilbao to O'Hare Intl
Explore the most affordable flight options available from Bilbao to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.

This British Airways deal was found by Cheapflights users on 4/21. 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.
Mon 5/49:15 am
BIO
-
ORD
1 stop12h 10m
British Airways
Mon 5/114:55 pm
ORD
-
BIO
1 stop17h 00m
British Airways
Deal found 4/21$524
This American Airlines deal was found by Cheapflights users on 4/19. 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 4/279:15 am
BIO
-
ORD
1 stop12h 10m
American Airlines
Mon 5/410:30 pm
ORD
-
BIO
1 stop27h 00m
American Airlines
Deal found 4/19$533
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Mon 4/279:35 pm
BIO
-
ORD
1 stop23h 50m
Iberia
Mon 5/44:55 pm
ORD
-
BIO
1 stop20h 55m
Iberia
Deal found 4/21$535
This Expedia deal was found by Cheapflights users on 4/22. 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.
Thu 5/76:45 am
BIO
-
ORD
1 stop14h 40m
Iberia
Mon 5/117:05 pm
ORD
-
BIO
2 stops14h 50m
Iberia
Deal found 4/22$547
This Trip.com deal was found by Cheapflights users on 4/22. 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 4/306:45 am
BIO
-
ORD
1 stop16h 15m
Iberia
Mon 5/44:55 pm
ORD
-
BIO
1 stop32h 35m
Iberia
Deal found 4/22$560
This Iberia deal was found by Cheapflights users on 4/23. 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 4/306:45 am
BIO
-
ORD
1 stop16h 15m
Iberia
Mon 5/2510:30 pm
ORD
-
BIO
2 stops17h 45m
Iberia
Deal found 4/23$578
This Iberia deal was found by Cheapflights users on 4/23. 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 4/306:45 am
BIO
-
ORD
1 stop16h 15m
Iberia
Wed 5/2710:40 am
ORD
-
BIO
2 stops23h 15m
Iberia
Deal found 4/23$587
This Iberia deal was found by Cheapflights users on 4/23. 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 4/306:45 am
BIO
-
ORD
1 stop16h 15m
Iberia
Sun 5/317:20 pm
ORD
-
BIO
2 stops19h 45m
Iberia
Deal found 4/23$592

Find flight deals from Bilbao to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Bilbao (BIO) to O'Hare Intl (ORD). 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 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$524
(British Airways)

One-way from

$405
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$937
Provider with most accurate pricing for Bilbao-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bilbao-Chicago O'Hare Intl flights.
Search Deals
From Bilbao to Chicago O'Hare Intl
Search Deals
One-way flight from Bilbao to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($220 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($35 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 O'Hare Intl 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 24, 2026.
Use the filters below to find and compare flights from Bilbao to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 5/4

9:15 am-2:25 pm

1 stop12h 10m

Chicago O'Hare Intl

Mon 5/11

4:55 pm-4:55 pm

1 stop17h 00m

$524

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Fri 9/11

6:45 am-6:37 pm

2 stops18h 52m

Chicago O'Hare Intl

Thu 9/17

12:57 pm-1:15 pm

2 stops17h 18m

$712

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 6/1

6:45 am-7:20 pm

2 stops19h 35m

Chicago O'Hare Intl

Mon 6/15

10:29 am-11:15 am

2 stops17h 46m

$715
Quickest round-trip

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Sun 6/7

6:50 am-12:55 pm

1 stop13h 05m

Chicago O'Hare Intl

Sun 6/14

6:30 pm-1:20 pm

1 stop11h 50m

$718

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 6/1

6:50 am-6:47 pm

2 stops18h 57m

Chicago O'Hare Intl

Sat 6/13

8:20 pm-10:10 am

2 stops30h 50m

$723

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

$729

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Sat 5/23

6:50 am-11:26 pm

2 stops23h 36m

Chicago O'Hare Intl

Wed 5/27

11:03 am-5:55 pm

2 stops23h 52m

$738

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 6/1

6:45 am-9:00 pm

2 stops21h 15m

Chicago O'Hare Intl

Wed 6/17

10:30 pm-11:15 pm

1 stop17h 45m

$747

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 6/1

11:55 am-12:35 pm

1 stop31h 40m

Chicago O'Hare Intl

Mon 6/15

10:30 pm-10:25 pm

1 stop16h 55m

$758

BilbaoChicago

BIO - ORD

BIOORD

Bilbao

Mon 5/4

12:00 pm-2:15 pm

1 stop33h 15m

Chicago O'Hare Intl

Tue 5/26

11:09 am-5:30 pm

2 stops23h 21m

$779

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3
  • Most accurate provider: When it comes to deals on Bilbao-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bilbao-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Bilbao-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bilbao-Chicago O'Hare Intl Airport 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 O'Hare Intl Airport 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 O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 O'Hare Intl Airport

What is the cheapest month to book a flight from Bilbao to Chicago O'Hare Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Bilbao to Chicago O'Hare Intl Airport (average of $437). Flying from Bilbao to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $1,056). 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.

How much does it cost to fly round-trip from Bilbao to Chicago O'Hare Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Bilbao to O'Hare Intl. 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 O'Hare Intl?

    Bilbao (BIO), located 3.0 mi from the city center, is the airport you fly out of when you book flights from Bilbao to Chicago O'Hare Intl. 0 airlines have flights from Bilbao to Chicago O'Hare Intl on a regular basis. Booking flights from Bilbao to Chicago O'Hare Intl should not be difficult; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day.

  • How long is the flight from Bilbao to Chicago O'Hare Intl Airport?

    Departing from Bilbao to Chicago O'Hare Intl Airport will take you 12h 10m. Airlines will cover a distance of 4116 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Bilbao to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Bilbao to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bilbao to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bilbao to O'Hare Intl.

  • Can I find deals for business class flights from Bilbao to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Bilbao to O'Hare Intl 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 O'Hare Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Bilbao to Chicago O'Hare Intl Airport (average of $437). Flying from Bilbao to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $1,056). 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 O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Rosemont
Schaumburg
Naperville
Gurnee
Lake Geneva
Delavan
Hoffman Estates
Downers Grove
Oakbrook Terrace
Benton Harbor
Des Plaines
Oak Brook
South Holland
Libertyville
Elgin
Warrenville
Elk Grove Village
Bridgeview
Great Lakes
Lansing

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.

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.
Site
©2026 Cheapflights