What are the cheapest airlines flying from Chicago to Bilbao round-trip?

Cheapflights users have booked flights from Chicago to Bilbao round-trip from $553. Other airlines that can offer you cheap pricing are United Airlines, from $589, and Air Canada, from $593. Finnair is 44% cheaper than the average price of flights available within the next 90 days to this destination.

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

One-way options have recently been found by users for as low as $693 on SWISS. Other airlines that offer cheap prices include United Airlines from $700 and TAP AIR PORTUGAL from $734 one-way.

What is the cheapest day to fly from Chicago to Bilbao?

Travelers seeking maximum savings on their Chicago to Bilbao flight should consider departing on Monday afternoons when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Chicago to Bilbao?

Before booking your flight from Chicago to Bilbao check out the most popular airlines for this route: Iberia, KLM or Lufthansa.

What is the cheapest day to fly round-trip from Chicago to Bilbao?

Sunday is generally a great day to depart. Flying on this day could help you save up to 25%.

What is the cheapest month to fly from Chicago to Bilbao?

Due to multiple factors, expect to potentially pay more when booking in April. For low rates, January can be a great choice for travel to Bilbao. Flights to Bilbao from Chicago in January are about $999 on average during January, but can be found for as low as $574.

Most accurate provider : When it comes to deals on Chicago-Bilbao flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Chicago-Bilbao flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Chicago-Bilbao flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Chicago-Bilbao flights, Cheapflights users trust AranGrant the most. AranGrant 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-Bilbao flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly into for flights to Bilbao from Chicago?

Bilbao (BIO) is the airport you will fly into if you book a flight from Chicago to Bilbao. You should not have trouble finding flights to Bilbao from Chicago; the airport handles an average of 0 inbound flights from Chicago per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Bilbao airport from Chicago. It is only a 3.0 mi journey from Bilbao (BIO) to Bilbao’s city center.

Can I find deals for flights from Chicago to Bilbao that include hotel bookings?

Yes. In addition to deals on Chicago to Bilbao flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Chicago to Bilbao?

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

Can I find deals for business class flights from Chicago to Bilbao?

Yes. Cheapflights offers flight deals from Chicago 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.

$553+ Flights from Chicago to Bilbao

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Cheap flight deals from Chicago to Bilbao

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$553 (StudentUniverse)
Popular in	April
Cheapest in	January
Average price	$1,271

Provider with most accurate pricing for Chicago (CHI)-Bilbao flight deals.

Search Deals

Provider most trusted by Cheapflights users for Chicago (CHI)-Bilbao flights.

Search Deals

From Chicago (CHI) to Bilbao

Search Deals

Highest demand for flights based on searches. 30% potential increase in price ($443 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 14% potential price decrease ($131 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 2025

Search Deals

Find flight deals from Chicago to Bilbao

Cheapest flights from Chicago to Bilbao
Explore the most affordable flight options available from Chicago to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Tue 10/74:30 pmORD - BIO

1 stop23h 45mFinnair

Tue 10/216:45 amBIO - ORD

1 stop14h 30mFinnair

Deal found 4/30

$553

Mon 10/69:40 pmORD - BIO

1 stop13h 10mUnited Airlines

Thu 10/236:45 amBIO - ORD

2 stops15h 05mUnited Airlines

Deal found 4/30

$589

Tue 10/710:40 amORD - BIO

2 stops24h 40mAir Canada

Fri 10/246:45 amBIO - ORD

2 stops39h 05mAir Canada

Deal found 4/30

$593

Mon 10/69:40 pmORD - BIO

1 stop13h 10mMultiple Airlines

Tue 10/216:45 amBIO - ORD

2 stops15h 19mMultiple Airlines

Deal found 4/30

$595

Wed 10/83:35 pmORD - BIO

1 stop12h 30mLufthansa

Tue 10/217:15 amBIO - ORD

1 stop18h 00mLufthansa

Deal found 4/30

$599

Sat 11/13:14 pmORD - BIO

2 stops15h 36mAmerican Airlines

Mon 11/109:35 pmBIO - ORD

1 stop23h 55mAmerican Airlines

Deal found 4/30

$613

Sun 10/52:20 pmORD - BIO

2 stops20h 30mSWISS

Mon 10/209:45 amBIO - ORD

1 stop33h 25mSWISS

Deal found 4/30

$616

Wed 9/1011:25 amORD - BIO

1 stop23h 00mTurkish Airlines

Mon 9/1512:05 pmBIO - ORD

1 stop16h 55mTurkish Airlines

Deal found 4/30

$617

Wed 10/85:20 pmORD - BIO

2 stops16h 10mDelta

Wed 10/226:50 amBIO - ORD

2 stops19h 57mDelta

Deal found 4/30

$658

Sat 8/307:00 amORD - BIO

2 stops44h 00mScandinavian Airlines

Fri 9/128:40 pmBIO - ORD

1 stop26h 30mScandinavian Airlines

Deal found 4/30

$687

Sat 8/306:15 pmORD - BIO

1 stop16h 50mTAP AIR PORTUGAL

Wed 9/1012:25 pmBIO - ORD

1 stop29h 30mTAP AIR PORTUGAL

Deal found 4/30

$891

Thu 8/284:30 pmORD - BIO

1 stop21h 20mIberia

Tue 9/166:45 amBIO - ORD

1 stop14h 30mIberia

Deal found 5/1

$904

Best flights from Chicago to Bilbao
Discover carefully curated flight deals from Chicago to Bilbao that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2025.

Tue 10/74:30 pmORD - BIO

1 stop23h 45mFinnair

Tue 10/216:45 amBIO - ORD

1 stop14h 30mFinnair

Deal found 4/30

$553

Mon 10/69:40 pmORD - BIO

1 stop13h 10mUnited Airlines

Thu 10/236:45 amBIO - ORD

2 stops15h 05mUnited Airlines

Deal found 4/30

$589

Tue 10/710:40 amORD - BIO

2 stops24h 40mAir Canada

Fri 10/246:45 amBIO - ORD

2 stops39h 05mAir Canada

Deal found 4/30

$593

Mon 10/69:40 pmORD - BIO

1 stop13h 10mMultiple Airlines

Tue 10/216:45 amBIO - ORD

2 stops15h 19mMultiple Airlines

Deal found 4/30

$595

Wed 10/83:35 pmORD - BIO

1 stop12h 30mLufthansa

Tue 10/217:15 amBIO - ORD

1 stop18h 00mLufthansa

Deal found 4/30

$599

Sun 10/52:20 pmORD - BIO

2 stops20h 30mSWISS

Mon 10/209:45 amBIO - ORD

1 stop33h 25mSWISS

Deal found 4/30

$616

Wed 9/1011:25 amORD - BIO

1 stop23h 00mTurkish Airlines

Mon 9/1512:05 pmBIO - ORD

1 stop16h 55mTurkish Airlines

Deal found 4/30

$617

Wed 10/85:20 pmORD - BIO

2 stops16h 10mDelta

Wed 10/226:50 amBIO - ORD

2 stops19h 57mDelta

Deal found 4/30

$658

Sat 8/307:00 amORD - BIO

2 stops44h 00mScandinavian Airlines

Fri 9/128:40 pmBIO - ORD

1 stop26h 30mScandinavian Airlines

Deal found 4/30

$687

Sat 8/306:15 pmORD - BIO

1 stop16h 50mTAP AIR PORTUGAL

Wed 9/1012:25 pmBIO - ORD

1 stop29h 30mTAP AIR PORTUGAL

Deal found 4/30

$891

Thu 8/284:30 pmORD - BIO

1 stop21h 20mIberia

Tue 9/166:45 amBIO - ORD

1 stop14h 30mIberia

Deal found 5/1

$904

Fri 8/295:10 pmORD - BIO

1 stop10h 45mKLM

Wed 9/1012:00 pmBIO - ORD

1 stop33h 10mKLM

Deal found 4/30

$933

Last-minute flights from Chicago to Bilbao
Discover last-minute flight deals from Chicago to Bilbao. Data last updated May 1, 2025 and is based on user searches.

Wed 4/309:15 pmORD - BIO

1 stop13h 15mAer Lingus

Tue 5/66:10 pmBIO - ORD

2 stops31h 05mAer Lingus

Deal found 4/30

$1,915

Wed 5/78:40 amORD - BIO

2 stops20h 15mMultiple Airlines

Mon 5/124:50 pmBIO - ORD

2 stops34h 22mMultiple Airlines

Deal found 4/30

$772

Wed 5/77:50 pmORD - BIO

1 stop32h 15mTurkish Airlines

Mon 5/1212:05 pmBIO - ORD

1 stop28h 35mTurkish Airlines

Deal found 4/30

$1,044

Mon 5/194:30 pmORD - BIO

1 stop13h 15mIberia

Fri 5/239:15 amBIO - ORD

1 stop12h 00mIberia

Deal found 4/30

$1,341

Mon 5/197:05 pmORD - BIO

1 stop18h 10mSWISS

Mon 5/2610:25 amBIO - ORD

1 stop32h 45mSWISS

Deal found 4/30

$1,362

Mon 5/196:00 amORD - BIO

2 stops21h 25mDelta

Sun 5/256:50 amBIO - ORD

2 stops21h 43mDelta

Deal found 4/30

$1,397

Mon 5/194:20 pmORD - BIO

2 stops23h 05mAustrian Airlines

Sun 5/252:10 pmBIO - ORD

2 stops30h 10mAustrian Airlines

Deal found 4/30

$1,431

Mon 5/1911:45 amORD - BIO

2 stops13h 45mAmerican Airlines

Mon 5/269:15 amBIO - ORD

2 stops17h 21mAmerican Airlines

Deal found 4/30

$1,432

Mon 5/1910:25 amMDW - BIO

2 stops17h 00mDelta

Fri 5/237:10 amBIO - MDW

2 stops17h 35mDelta

Deal found 4/30

$1,748

Thu 5/222:00 pmORD - BIO

2 stops21h 20mAir Canada

Thu 5/296:45 amBIO - ORD

2 stops20h 27mAir Canada

Deal found 5/1

$1,299

Wed 5/286:00 pmORD - BIO

1 stop22h 25mUnited Airlines

Sun 6/112:30 pmBIO - ORD

1 stop13h 07mUnited Airlines

Deal found 4/30

$1,190

One-way flights from Chicago to Bilbao
Search for one-way flight options from Chicago to Bilbao. Find affordable one-way fares based on user searches. Data last updated May 1, 2025.

Wed 5/147:05 pmORD - BIO

1 stop29h 45mSWISS

Deal found 4/30

$693

Wed 5/1410:00 amORD - BIO

2 stops18h 05mUnited Airlines

Deal found 4/30

$700

Fri 5/96:00 pmORD - BIO

1 stop16h 35mTAP AIR PORTUGAL

Deal found 4/30

$734

Sat 6/1410:58 amORD - BIO

2 stops24h 07mMultiple Airlines

Deal found 4/30

$804

Fri 5/93:45 pmORD - BIO

1 stop18h 45mAer Lingus

Deal found 5/1

$820

Sun 6/156:47 pmMDW - BIO

2 stops14h 53mDelta

Deal found 5/1

$876

Thu 5/811:45 amORD - BIO

2 stops18h 00mIberia

Deal found 4/30

$1,041

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 10/7

4:30 pm-11:15 pm

1 stop23h 45m

Bilbao

Tue 10/21

6:45 am-2:15 pm

1 stop14h 30m

$553

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 10/6

9:40 pm-5:50 pm

1 stop13h 10m

Bilbao

Thu 10/23

6:45 am-2:50 pm

2 stops15h 05m

$589

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 10/7

10:40 am-6:20 pm

2 stops24h 40m

Bilbao

Fri 10/24

6:45 am-2:50 pm

2 stops39h 05m

$593

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 10/6

9:40 pm-5:50 pm

1 stop13h 10m

Bilbao

Tue 10/21

6:45 am-3:04 pm

2 stops15h 19m

$595

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 10/8

3:35 pm-11:05 am

1 stop12h 30m

Bilbao

Tue 10/21

7:15 am-6:15 pm

1 stop18h 00m

$599

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 10/5

2:20 pm-5:50 pm

2 stops20h 30m

Bilbao

Mon 10/20

9:45 am-12:10 pm

1 stop33h 25m

$616

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 9/10

11:25 am-5:25 pm

1 stop23h 00m

Bilbao

Mon 9/15

12:05 pm-10:00 pm

1 stop16h 55m

$617

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 10/8

5:20 pm-4:30 pm

2 stops16h 10m

Bilbao

Wed 10/22

6:50 am-7:47 pm

2 stops19h 57m

$658

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 8/30

7:00 am-10:00 am

2 stops44h 00m

Bilbao

Fri 9/12

8:40 pm-4:10 pm

1 stop26h 30m

$687

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 8/30

6:15 pm-6:05 pm

1 stop16h 50m

Bilbao

Wed 9/10

12:25 pm-10:55 am

1 stop29h 30m

$891

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 23 results

Compare providers for flights from Chicago to Bilbao

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Bilbao in May.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust 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-Bilbao flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Chicago-Bilbao flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Chicago-Bilbao flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Chicago-Bilbao flights, Cheapflights users trust AranGrant the most. AranGrant 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-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 Chicago to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Chicago 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 to Bilbao

What is the cheapest month to book a flight from Chicago to Bilbao?

Currently, January is the cheapest month in which you can book a flight from Chicago to Bilbao (average of $541). Flying from Chicago to Bilbao in June is currently the most expensive (average of $1,178). 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 CHI to BIO?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 41% on flights from Chicago to Bilbao by exploring options for tickets in the morning.

Rainfall in Bilbao 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

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

See what other customers who have flown with Delta, KLM and Finnair from Chicago to Bilbao have to say. 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

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,934 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,334 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,275 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS

7.5

Good

1,588 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,934 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly into for flights to Bilbao from Chicago?
Bilbao (BIO) is the airport you will fly into if you book a flight from Chicago to Bilbao. You should not have trouble finding flights to Bilbao from Chicago; the airport handles an average of 0 inbound flights from Chicago per day. You should also have plenty of airline options to choose from since 4 airlines have flights to the Bilbao airport from Chicago. It is only a 3.0 mi journey from Bilbao (BIO) to Bilbao’s city center.
What are the cheapest airlines flying from Chicago to Bilbao round-trip?
Cheapflights users have booked flights from Chicago to Bilbao round-trip from $553. Other airlines that can offer you cheap pricing are United Airlines, from $589, and Air Canada, from $593. Finnair is 44% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Chicago to Bilbao one-way?
One-way options have recently been found by users for as low as $693 on SWISS. Other airlines that offer cheap prices include United Airlines from $700 and TAP AIR PORTUGAL from $734 one-way.
Can I find deals for flights from Chicago to Bilbao that include hotel bookings?
Yes. In addition to deals on Chicago to Bilbao flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Chicago to Bilbao?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Bilbao.
Can I find deals for business class flights from Chicago to Bilbao?
Yes. Cheapflights offers flight deals from Chicago 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 to Bilbao?
Currently, January is the cheapest month in which you can book a flight from Chicago to Bilbao (average of $541). Flying from Chicago to Bilbao in June is currently the most expensive (average of $1,178). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Chicago to Bilbao

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$567	Average$1,046	FlexibilityNo cancel fee	On-time75%
Iberia	Cheapest$578	Average$894	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$639	Average$1,101	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$646	Average$990	FlexibilityNo cancel fee	On-time76%

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$553+ Cheap flights from Chicago (CHI) to Bilbao (BIO)

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Chicago to Bilbao with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Chicago to Bilbao

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Chicago to Bilbao

Cheapest flights from Chicago to BilbaoExplore the most affordable flight options available from Chicago to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Explore the most affordable flight options available from Chicago to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chicago to Bilbao that are best for you.

Compare providers for flights from Chicago 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 Chicago to Bilbao in May.

Best time to book a flight from Chicago to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Chicago with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Bilbao

What is the cheapest month to book a flight from Chicago to Bilbao?

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

Find hourly flight availability from Chicago 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 May 1, 2025.

Rainfall in Bilbao by month

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

Temperature in Bilbao by month

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

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 May 1, 2025.

See what other customers who have flown with Delta, KLM and Finnair from Chicago to Bilbao have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Chicago 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?

What are the cheapest airlines flying from Chicago to Bilbao round-trip?

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

Can I find deals for flights from Chicago to Bilbao that include hotel bookings?

How can I find direct flights from Chicago to Bilbao?

Can I find deals for business class flights from Chicago to Bilbao?

What is the cheapest month to book a flight from Chicago to Bilbao?

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.

Alternative routes for Chicago to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Chicago to Bilbao

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Cheapest flights from Chicago to Bilbao
Explore the most affordable flight options available from Chicago to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.