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Bilbao

$275+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BIO
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap 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 January 26, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/2310:50 pm
ORD
-
BIO
1 stop18h 15m
Lufthansa
Wed 4/86:50 am
BIO
-
ORD
1 stop20h 05m
Lufthansa
Deal found 1/25$547
This Booking.com deal was found by Cheapflights users on 1/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1012:50 pm
ORD
-
BIO
1 stop21h 20m
Turkish Airlines
Tue 3/1712:00 pm
BIO
-
ORD
1 stop29h 05m
Turkish Airlines
Deal found 1/24$557
This Air France deal was found by Cheapflights users on 1/25. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/232:10 pm
ORD
-
BIO
2 stops15h 20m
Multiple Airlines
Wed 4/86:45 am
BIO
-
ORD
1 stop14h 45m
Multiple Airlines
Deal found 1/25$575
This Cheapflightsfares deal was found by Cheapflights users on 1/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/119:40 pm
ORD
-
BIO
1 stop18h 45m
Lufthansa
Fri 10/236:50 am
BIO
-
ORD
2 stops18h 25m
Lufthansa
Deal found 1/24$579
This Delta deal was found by Cheapflights users on 1/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/231:57 pm
ORD
-
BIO
2 stops15h 33m
Delta
Wed 4/86:45 am
BIO
-
ORD
2 stops18h 46m
Delta
Deal found 1/25$584
This Mytrip deal was found by Cheapflights users on 1/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1010:50 pm
ORD
-
BIO
2 stops18h 05m
Multiple Airlines
Tue 3/177:45 pm
BIO
-
ORD
2 stops24h 40m
Multiple Airlines
Deal found 1/24$588
This FlightHub deal was found by Cheapflights users on 1/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1111:25 am
ORD
-
BIO
1 stop16h 45m
Turkish Airlines
Fri 5/2212:10 pm
BIO
-
ORD
1 stop28h 30m
Turkish Airlines
Deal found 1/23$593
This Booking.com deal was found by Cheapflights users on 1/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/711:50 am
ORD
-
BIO
1 stop21h 20m
Turkish Airlines
Tue 2/1012:00 pm
BIO
-
ORD
1 stop29h 05m
Turkish Airlines
Deal found 1/24$597
This Booking.com deal was found by Cheapflights users on 1/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:10 pm
ORD
-
BIO
1 stop38h 10m
Turkish Airlines
Sat 9/512:10 pm
BIO
-
ORD
1 stop16h 55m
Turkish Airlines
Deal found 1/25$599
This American Airlines deal was found by Cheapflights users on 1/24. 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.
Sun 10/119:41 am
ORD
-
BIO
2 stops15h 49m
American Airlines
Fri 10/239:15 am
BIO
-
ORD
2 stops17h 20m
American Airlines
Deal found 1/24$604
This KAYAK deal was found by Cheapflights users on 1/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3011:25 am
ORD
-
BIO
1 stop16h 45m
Turkish Airlines
Wed 4/86:15 pm
BIO
-
ORD
1 stop31h 00m
Turkish Airlines
Deal found 1/26$606
This FlightHub deal was found by Cheapflights users on 1/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/211:25 am
ORD
-
BIO
1 stop16h 45m
Turkish Airlines
Sun 4/126:15 pm
BIO
-
ORD
1 stop22h 25m
Turkish Airlines
Deal found 1/24$616

Find 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$547
(Cheapflightsfares)

One-way from

$275
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$901
Provider with most accurate pricing for Chicago O'Hare Intl-Bilbao flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Bilbao flights.
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From Chicago O'Hare Intl to Bilbao
Search Deals
One-way flight from Chicago O'Hare Intl to Bilbao
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($163 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
Search Deals

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 January 26, 2026.
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 3/23

2:10 pm-11:30 am

2 stops15h 20m

Bilbao

Wed 4/8

6:45 am-2:30 pm

1 stop14h 45m

$575

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 3/23

1:57 pm-11:30 am

2 stops15h 33m

Bilbao

Wed 4/8

6:45 am-6:31 pm

2 stops18h 46m

$584

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 3/30

11:25 am-11:10 am

1 stop16h 45m

Bilbao

Wed 4/8

6:15 pm-6:15 pm

1 stop31h 00m

$606

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 4/2

11:25 am-11:10 am

1 stop16h 45m

Bilbao

Sun 4/12

6:15 pm-9:40 am

1 stop22h 25m

$616

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 3/10

5:55 pm-12:50 pm

1 stop12h 55m

Bilbao

Tue 3/17

6:45 am-2:25 pm

1 stop13h 40m

$623

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 3/10

2:10 pm-11:30 am

2 stops15h 20m

Bilbao

Tue 3/17

11:55 am-3:20 pm

1 stop33h 25m

$625

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 3/11

10:40 am-11:30 am

2 stops18h 50m

Bilbao

Wed 3/18

6:50 am-6:31 pm

2 stops17h 41m

$636

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 2/12

11:50 am-11:00 am

1 stop16h 10m

Bilbao

Thu 2/19

5:10 pm-6:25 pm

1 stop32h 15m

$646

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 4/23

6:31 am-6:05 pm

2 stops28h 34m

$275

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 4/16

4:28 pm-5:10 pm

3 stops41h 42m

$300

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 15 results
1
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Compare providers for flights from O'Hare Intl to Bilbao

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Bilbao in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Bilbao flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Bilbao flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Bilbao 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 Chicago O'Hare Intl Airport-Bilbao 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 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, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bilbao (average of $547). Flying from Chicago O'Hare Intl Airport to Bilbao in January is currently the most expensive (average of $901). 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.

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 January 26, 2026.
Peruse reviews from past customers who have flown with United Airlines, Iberia, and Lufthansa from Chicago O'Hare Intl Airport to Bilbao to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,203 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,203 reviews
United Airlines
7.4
Good
9,203 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Iberia
7.0
Good
3,098 reviews
United Airlines
7.4
Good
9,203 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,747 reviews
United Airlines
7.4
Good
9,203 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 3 different airlines.

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

    Departing from Chicago O'Hare Intl Airport to Bilbao will take you 15h 33m. The distance between Chicago O'Hare Intl Airport and Bilbao is about 4116 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on Lufthansa is currently your cheapest option to Bilbao, with prices starting at $575. Additional round-trip tickets that might be worth considering are offered by Iberia and United Airlines, with the lowest prices starting at $656 and $699, respectively. Users have found that Lufthansa is 34% cheaper than the other options available to this destination.

  • 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, August is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bilbao (average of $547). Flying from Chicago O'Hare Intl Airport to Bilbao in January is currently the most expensive (average of $901). 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 3 airlines flying from O'Hare Intl to Bilbao

Discover the top 3 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$575Average$879FlexibilityNo cancel feeOn-time76%
IberiaCheapest$656Average$785FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$699Average$901FlexibilityNo cancel feeOn-time69%

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