Which layover airport has the shortest connection time from Chicago to Bilbao?

Madrid (MAD) has the shortest average layover time for this route: 1h 50m.

Which layover airport has the shortest travel time from Chicago to Bilbao?

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 11h 10m.

Which airport is the most popular layover for flights between Chicago and Bilbao?

Frankfurt am Main (FRA) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Bilbao?

Iberia, Lufthansa and United Airlines are the top three most popular airlines that fly to Bilbao from Chicago according to our data. Iberia is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Bilbao. Keep in mind that there are 4 different airlines that fly to Bilbao on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from Chicago to Bilbao?

Flights via Munich (MUC) offer the lowest average round-trip price of $817.

What is the cheapest airline that flies from Chicago to Bilbao?

Delta is the most popular carrier operating from Chicago to Bilbao

When did momondo last update prices for flights from Chicago to Bilbao Airport?

Prices for flights from Chicago to Bilbao Airport were last updated today.

How many operators does momondo search for flights from Chicago to Bilbao Airport?

The number of operators available for flights from Chicago to Bilbao Airport is 3 as of November 2025.

How old do you have to be to fly from Chicago to Bilbao Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Bilbao Airport.

What documentation or ID do you need to fly to Bilbao Airport?

The necessary travel and health documents for your Bilbao Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$297 Cheap Flights from Chicago to Bilbao in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Chicago to Bilbao

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:15 pm - 11:35 amORD-BIO

33h 20m1 stop

9:25 pm - 4:10 pmBIO-ORD

25h 45m1 stop

$505Scandinavian Airlines

Find Deal

Sat, Apr 25 - Sun, May 17

6:30 pm - 6:35 pmORD-BIO

17h 05m2 stops

7:45 am - 5:20 pmBIO-ORD

16h 35m2 stops

$585Multiple Airlines

Find Deal

Wed, Jan 7 - Wed, Jan 14

11:25 am - 10:55 amORD-BIO

16h 30m1 stop

6:20 pm - 9:40 amBIO-ORD

22h 20m1 stop

$605Turkish Airlines

Find Deal

Mon, Mar 30 - Wed, Apr 8

6:30 pm - 11:05 amORD-BIO

33h 35m2 stops

6:45 am - 2:55 pmBIO-ORD

15h 10m1 stop

$618Multiple Airlines

Find Deal

Thu, Jan 8 - Thu, Jan 15

5:20 pm - 11:30 amORD-BIO

11h 10m1 stop

6:50 am - 2:20 pmBIO-ORD

14h 30m1 stop

$619KLM

Find Deal

Wed, Jan 7 - Wed, Jan 14

5:20 pm - 11:30 amORD-BIO

11h 10m1 stop

6:50 am - 9:35 pmBIO-ORD

21h 45m2 stops

$629Delta

Find Deal

Wed, Jan 7 - Wed, Jan 14

8:20 pm - 4:10 pmORD-BIO

36h 50m1 stop

12:00 pm - 6:25 pmBIO-ORD

37h 25m1 stop

$650Turkish Airlines

Find Deal

Fri, Jan 23 - Tue, Jan 27

9:50 pm - 9:55 pmORD-BIO

17h 05m1 stop

7:40 am - 6:25 pmBIO-ORD

17h 45m1 stop

$667Lufthansa

Find Deal

Thu, Jan 8 - Thu, Jan 15

1:26 pm - 5:20 pmMDW-BIO

20h 54m2 stops

7:25 am - 5:55 pmBIO-MDW

17h 30m2 stops

$719Delta

Find Deal

Fri, Jan 30 - Tue, Feb 3

1:26 pm - 5:20 pmMDW-BIO

20h 54m2 stops

5:20 pm - 6:36 pmBIO-MDW

32h 16m2 stops

$740KLM

Find Deal

Fri, Jan 30 - Tue, Feb 3

Turkish Airlines flights from Chicago to Bilbao

Our best Turkish Airlines deals on Chicago to Bilbao flight tickets

Turkish Airlines

Mar 30

ORD11:25 amChicago O'Hare Intl

16h 30m

1 stop

BIO10:55 amBilbao

Apr 8

BIO6:20 pmBilbao

22h 20m

1 stop

ORD9:40 amChicago O'Hare Intl

$605

Find similar

Turkish Airlines

Jan 23

ORD8:20 pmChicago O'Hare Intl

36h 50m

1 stop

BIO4:10 pmBilbao

Jan 27

BIO12:00 pmBilbao

37h 25m

1 stop

ORD6:25 pmChicago O'Hare Intl

$650

Find similar

Turkish Airlines

Jan 28

ORD11:50 amChicago O'Hare Intl

21h 20m

1 stop

BIO4:10 pmBilbao

Feb 1

BIO5:10 pmBilbao

32h 15m

1 stop

ORD6:25 pmChicago O'Hare Intl

$665

Find similar

Lufthansa flights from Chicago to Bilbao

Our best Lufthansa deals on Chicago to Bilbao flight tickets

Lufthansa

Jan 8

ORD9:50 pmChicago O'Hare Intl

17h 05m

1 stop

BIO9:55 pmBilbao

Jan 15

BIO7:40 amBilbao

17h 45m

1 stop

ORD6:25 pmChicago O'Hare Intl

$667

Find similar

Lufthansa

May 17

ORD9:40 pmChicago O'Hare Intl

13h 10m

1 stop

BIO5:50 pmBilbao

May 24

BIO6:45 amBilbao

15h 10m

1 stop

ORD2:55 pmChicago O'Hare Intl

$885

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 4/25

7:15 pm-11:35 am

1 stop33h 20m

Bilbao

Sun 5/17

9:25 pm-4:10 pm

1 stop25h 45m

$505

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 1/7

6:30 pm-6:35 pm

2 stops17h 05m

Bilbao

Wed 1/14

7:45 am-5:20 pm

2 stops16h 35m

$585

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 3/30

11:25 am-10:55 am

1 stop16h 30m

Bilbao

Wed 4/8

6:20 pm-9:40 am

1 stop22h 20m

$605

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 1/8

6:30 pm-11:05 am

2 stops33h 35m

Bilbao

Thu 1/15

6:45 am-2:55 pm

1 stop15h 10m

$618

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 1/7

5:20 pm-11:30 am

1 stop11h 10m

Bilbao

Wed 1/14

6:50 am-2:20 pm

1 stop14h 30m

$619

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 1/7

5:20 pm-11:30 am

1 stop11h 10m

Bilbao

Wed 1/14

6:50 am-9:35 pm

2 stops21h 45m

$629

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 1/23

8:20 pm-4:10 pm

1 stop36h 50m

Bilbao

Tue 1/27

12:00 pm-6:25 pm

1 stop37h 25m

$650

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 1/8

9:50 pm-9:55 pm

1 stop17h 05m

Bilbao

Thu 1/15

7:40 am-6:25 pm

1 stop17h 45m

$667

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Fri 1/30

1:26 pm-5:20 pm

2 stops20h 54m

Bilbao

Tue 2/3

7:25 am-5:55 pm

2 stops17h 30m

$719

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Fri 1/30

1:26 pm-5:20 pm

2 stops20h 54m

Bilbao

Tue 2/3

5:20 pm-6:36 pm

2 stops32h 16m

$740

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Chicago to Bilbao

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the cheapest day to depart on your flight to Bilbao?

The cheapest day to depart from Chicago to Bilbao is on a Monday. Travelers who choose to depart for Bilbao on a Monday will often find tickets for as low as $930. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,171. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bilbao.

What is the cheapest time of day to depart on your flight to Bilbao?

Our most recent data shows that the best time of day to fly to Bilbao is in the morning. Flights from Chicago to Bilbao during this time can be as low as $652. In the evening is when there is more demand to fly to Bilbao, so prices are often more expensive at around $1,100 per ticket.

When to book flights from Chicago to Bilbao

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Bilbao according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago to Bilbao (CHI to BIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Bilbao

Fastest flight time	13h 10m
Direct flights	None

The fastest flight from Chicago to Bilbao takes 13h 10m

There are no direct flights from Chicago to Bilbao. There are no popular flight routes from Chicago to Bilbao.

Search flight deals

How far is Chicago to Bilbao by plane?
The straight-line distance from Chicago to Bilbao is 4107.8 mi. A reasonable flight in good conditions will take 11h 10m.
When did momondo last update prices for flights from Chicago to Bilbao Airport?
Prices for flights from Chicago to Bilbao Airport were last updated today.
How many operators does momondo search for flights from Chicago to Bilbao Airport?
The number of operators available for flights from Chicago to Bilbao Airport is 3 as of November 2025.
How old do you have to be to fly from Chicago to Bilbao Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Bilbao Airport.
What documentation or ID do you need to fly to Bilbao Airport?
The necessary travel and health documents for your Bilbao Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Chicago to Bilbao?
Based on momondo bookings for flights between Chicago and Bilbao, the leading airline is Lufthansa, making up 53% of the total bookings. Other popular airlines include United Airlines with 47%.

Best airlines flying from Chicago to Bilbao

Compare and see reviews for airlines that fly from Chicago to Bilbao with momondo

Airline	Rating	Free Cancellation	Price
Iberia	PriceFrom $612	Free Cancellation	Rating 7.0 3,034 reviews	Search Iberia flights
Lufthansa	PriceFrom $698	Free Cancellation	Rating 6.8 7,594 reviews	Search Lufthansa flights
United Airlines	PriceFrom $699	Free Cancellation	Rating 7.4 9,046 reviews	Search United Airlines flights

Getxo

Laredo

Lekeitio

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Bilbao?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Bilbao for you.

Can I find flights from Chicago to Bilbao with flexible booking policies on momondo?

Yes. All flights to Bilbao from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to Bilbao?

Once you have performed a search for Chicago to Bilbao flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Chicago to Bilbao right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Chicago to Bilbao now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bilbao and let you know when they change.

An easier way to manage your Bilbao trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Thu 12/25

Thu 1/1

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Spain

Cheap flights from Chicago to Bilbao from $297

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Bilbao departing on 12/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Chicago to Bilbao

Cheap round-trip flights

Cheap one-way flights

Turkish Airlines flights from Chicago to Bilbao

Our best Turkish Airlines deals on Chicago to Bilbao flight tickets

Lufthansa flights from Chicago to Bilbao

Our best Lufthansa deals on Chicago to Bilbao flight tickets

momondo Fare Finder

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

See travel insights to Bilbao from

How to get the cheapest flight ticket from Chicago to Bilbao

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Bilbao?

What is the cheapest time of day to depart on your flight to Bilbao?

Our most recent data shows that the best time of day to fly to Bilbao is in the morning. Flights from Chicago to Bilbao during this time can be as low as $652. In the evening is when there is more demand to fly to Bilbao, so prices are often more expensive at around $1,100 per ticket.

What is the cheapest airline that flies from Chicago to Bilbao?

Delta is the most popular carrier operating from Chicago to Bilbao

What airlines fly to Bilbao?

Which airport is the most popular layover for flights between Chicago and Bilbao?

Frankfurt am Main (FRA) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Chicago to Bilbao?

Flights via Munich (MUC) offer the lowest average round-trip price of $817.

Which layover airport has the shortest travel time from Chicago to Bilbao?

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 11h 10m.

Which layover airport has the shortest connection time from Chicago to Bilbao?

Madrid (MAD) has the shortest average layover time for this route: 1h 50m.

When to book flights from Chicago to Bilbao

Cheap Chicago to Bilbao (CHI to BIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Bilbao

Fastest flight time

Direct flights

How far is Chicago to Bilbao by plane?

When did momondo last update prices for flights from Chicago to Bilbao Airport?

How many operators does momondo search for flights from Chicago to Bilbao Airport?

How old do you have to be to fly from Chicago to Bilbao Airport?

What documentation or ID do you need to fly to Bilbao Airport?

What is the most popular airline from Chicago to Bilbao?

Best airlines flying from Chicago to Bilbao

Compare and see reviews for airlines that fly from Chicago to Bilbao with momondo

Traveling to a place near Bilbao?

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Bilbao?

Can I find flights from Chicago to Bilbao with flexible booking policies on momondo?

How can momondo help me find flights from Chicago to Bilbao?

I’m not ready to book a flight from Chicago to Bilbao right now. Can momondo alert me if prices change?

An easier way to manage your Bilbao trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Spain

Airports servicing Basque Country