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Bilbao

$361+ Cheap flights from O'Hare Intl (ORD) to Bilbao (BIO)

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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BIO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Bilbao (BIO). 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 June 12, 2025.

Round-trip from

$500
(FlightHub)

One-way from

$361
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$1,115
From Chicago O'Hare Intl to Bilbao
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One-way flight from Chicago O'Hare Intl to Bilbao
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Highest demand for flights based on searches. 20% potential increase in price ($233 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from O'Hare Intl to Bilbao

Cheapest flights from O'Hare Intl to Bilbao
Explore the most affordable flight options available from O'Hare Intl to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:20 pmORD - BIO
1 stop16h 20mScandinavian Airlines
Fri 1/97:30 pmBIO - ORD
1 stop28h 15mScandinavian Airlines
Deal found 6/11$399
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:10 pmORD - BIO
1 stop16h 50mTAP AIR PORTUGAL
Sun 9/147:45 pmBIO - ORD
1 stop27h 55mTAP AIR PORTUGAL
Deal found 6/11$500
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Sun 9/76:00 pmORD - BIO
2 stops17h 55mMultiple Airlines
Sat 9/1310:25 pmBIO - ORD
2 stops49h 15mMultiple Airlines
Deal found 6/11$551
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/54:30 pmORD - BIO
1 stop13h 15mIberia
Wed 10/229:15 amBIO - ORD
1 stop12h 00mIberia
Deal found 6/12$583
This United Airlines deal was found by Cheapflights users on 6/12. 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 10/19:40 pmORD - BIO
1 stop18h 45mUnited Airlines
Wed 10/86:45 amBIO - ORD
2 stops20h 26mUnited Airlines
Deal found 6/12$589
This Lufthansa deal was found by Cheapflights users on 6/11. 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.
Sun 12/289:50 pmORD - BIO
1 stop13h 15mLufthansa
Thu 1/86:50 pmBIO - ORD
1 stop30h 35mLufthansa
Deal found 6/11$602
This Gotogate deal was found by Cheapflights users on 6/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/283:35 pmORD - BIO
2 stops38h 15mAir Canada
Tue 12/912:50 pmBIO - ORD
2 stops30h 09mAir Canada
Deal found 6/10$606
This FlightHub deal was found by Cheapflights users on 6/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/111:45 pmORD - BIO
1 stop28h 20mTurkish Airlines
Wed 10/86:25 pmBIO - ORD
1 stop22h 15mTurkish Airlines
Deal found 6/12$611
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Sun 9/1410:35 pmORD - BIO
2 stops15h 15mAmerican Airlines
Sun 9/219:15 amBIO - ORD
1 stop12h 00mAmerican Airlines
Deal found 6/11$722
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/14:20 pmORD - BIO
2 stops23h 05mAustrian Airlines
Mon 9/82:10 pmBIO - ORD
2 stops30h 10mAustrian Airlines
Deal found 6/9$822
This KLM deal was found by Cheapflights users on 6/11. 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.
Sat 9/62:25 pmORD - BIO
2 stops13h 50mKLM
Sun 9/146:50 amBIO - ORD
1 stop14h 20mKLM
Deal found 6/11$843
This Finnair deal was found by Cheapflights users on 6/10. 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.
Sat 8/307:05 pmORD - BIO
2 stops43h 50mFinnair
Wed 9/106:45 amBIO - ORD
1 stop14h 30mFinnair
Deal found 6/10$871

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl to Bilbao 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 June 12, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Bilbao that are best for you.

Fly from

O'Hare Intl

Fly to

Bilbao

Route

Depart

Return

Price

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 9/8

6:10 pm-6:00 pm

1 stop16h 50m

Bilbao

Sun 9/14

7:45 pm-4:40 pm

1 stop27h 55m

$500

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 9/7

6:00 pm-6:55 pm

2 stops17h 55m

Bilbao

Sat 9/13

10:25 pm-4:40 pm

2 stops49h 15m

$551

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 10/5

4:30 pm-12:45 pm

1 stop13h 15m

Bilbao

Wed 10/22

9:15 am-2:15 pm

1 stop12h 00m

$583

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 10/1

9:40 pm-11:25 pm

1 stop18h 45m

Bilbao

Wed 10/8

6:45 am-8:11 pm

2 stops20h 26m

$589

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 11/28

3:35 pm-12:50 pm

2 stops38h 15m

Bilbao

Tue 12/9

12:50 pm-11:59 am

2 stops30h 09m

$606

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 10/1

11:45 pm-11:05 am

1 stop28h 20m

Bilbao

Wed 10/8

6:25 pm-9:40 am

1 stop22h 15m

$611

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 11/28

9:50 pm-11:05 pm

1 stop18h 15m

Bilbao

Wed 12/10

12:45 pm-8:05 pm

1 stop14h 20m

$617

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 9/6

7:15 pm-10:00 am

1 stop31h 45m

Bilbao

Fri 9/12

8:40 pm-4:10 pm

1 stop26h 30m

$640

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 9/14

10:35 pm-8:50 pm

2 stops15h 15m

Bilbao

Sun 9/21

9:15 am-2:15 pm

1 stop12h 00m

$722

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 9/1

4:20 pm-10:25 pm

2 stops23h 05m

Bilbao

Mon 9/8

2:10 pm-1:20 pm

2 stops30h 10m

$822

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 21 results
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Best time to book a flight from O'Hare Intl to Bilbao

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

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

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bilbao (average of $541). Flying from Chicago O'Hare Intl Airport to Bilbao in June is currently the most expensive (average of $1,139). 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.

What is the cheapest time of day to fly from ORD to BIO?

Find hourly flight availability from O'Hare Intl to Bilbao. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Chicago O'Hare Intl Airport to Bilbao, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 41% versus a flight in the afternoon.

Rainfall in Bilbao by month

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

In terms of precipitation, rainfall in Bilbao ranges from 2.4 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Bilbao when rainfall is around 2.4 in.

Temperature in Bilbao by month

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

If weather is an important factor for your trip to Bilbao, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Bilbao

Get insights into the airlines that provide service to Bilbao. 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 Bilbao. Reviews last updated June 12, 2025.
Get a feel of what it's like to fly with Delta, KLM and Austrian Airlines from Chicago to Bilbao by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

    Located just 3.0 mi from the city center, Bilbao is the airport most travelers will use when flying to Bilbao from Chicago O'Hare Intl. Booking flights from Chicago O'Hare Intl to Bilbao (BIO) should be relatively easy as there are 0 daily inbound flights from Chicago O'Hare Intl from 4 different airlines.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Bilbao round-trip?

    Flying on TAP AIR PORTUGAL is currently your cheapest option to Bilbao, with prices starting at $500. Additional round-trip tickets that might be worth considering are offered by Iberia and United Airlines, with the lowest prices starting at $583 and $589, respectively. Users have found that TAP AIR PORTUGAL is 44% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Bilbao one-way?

    The cheapest airlines for a one-way flight from Chicago O'Hare Intl Airport to Bilbao are TAP AIR PORTUGAL ($400), Air Canada ($479), and Aer Lingus ($559).

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bilbao (average of $541). Flying from Chicago O'Hare Intl Airport to Bilbao in June is currently the most expensive (average of $1,139). 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

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Alternative routes for O'Hare Intl to Bilbao

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

Top 4 airlines flying from O'Hare Intl to Bilbao

Discover the top 4 airlines that operate flights from O'Hare Intl to Bilbao. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$567Average$927FlexibilityNo cancel feeOn-time75%
IberiaCheapest$612Average$894FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$639Average$1,041FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$646Average$936FlexibilityNo cancel feeOn-time76%

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