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.

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

KLM, Delta, and Turkish Airlines are the most popular carriers operating from Chicago to Bilbao

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 33% 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 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 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.

$319 Cheap Flights from Chicago to Bilbao in 2025/26

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Cheap round-trip flights

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7:50 pm - 5:20 pmORD-BIO

38h 30m1 stop

11:55 am - 9:40 amBIO-ORD

28h 45m1 stop

$566Turkish Airlines

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Mon, Apr 6 - Tue, Apr 21

8:20 pm - 4:10 pmORD-BIO

36h 50m1 stop

12:00 pm - 10:05 amBIO-ORD

29h 05m1 stop

$650Turkish Airlines

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Fri, Jan 23 - Tue, Jan 27

12:50 pm - 11:45 amORD-BIO

15h 55m2 stops

9:05 pm - 1:10 pmBIO-ORD

23h 05m2 stops

$654Multiple Airlines

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Sun, Dec 7 - Sat, Dec 13

12:50 pm - 11:00 amORD-BIO

16h 10m1 stop

6:20 pm - 9:40 amBIO-ORD

22h 20m1 stop

$666Turkish Airlines

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Fri, Mar 20 - Sun, Mar 29

7:50 pm - 5:20 pmORD-BIO

38h 30m1 stop

1:10 pm - 9:40 amBIO-ORD

27h 30m2 stops

$671Multiple Airlines

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Mon, Apr 6 - Tue, Apr 21

5:20 pm - 5:20 pmORD-BIO

17h 00m1 stop

6:50 am - 9:05 pmBIO-ORD

21h 15m2 stops

$679Delta

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Fri, Jan 23 - Tue, Jan 27

12:50 pm - 11:45 amORD-BIO

15h 55m2 stops

8:30 am - 8:01 amBIO-ORD

30h 31m3 stops

$687Multiple Airlines

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Sun, Dec 7 - Sat, Dec 13

7:50 pm - 5:20 pmORD-BIO

38h 30m1 stop

11:55 am - 6:15 pmBIO-ORD

37h 20m1 stop

$690Turkish Airlines

Find Deal

Fri, Apr 3 - Tue, Apr 7

10:35 am - 10:25 amMDW-BIO

16h 50m2 stops

6:50 am - 6:05 pmBIO-MDW

18h 15m2 stops

$843Delta

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Mon, Apr 6 - Tue, Apr 21

6:00 am - 10:25 amMDW-BIO

21h 25m2 stops

5:15 pm - 6:34 pmBIO-MDW

32h 19m2 stops

$1,009KLM

Find Deal

Fri, Apr 3 - Tue, Apr 7

Turkish Airlines flights from Chicago to Bilbao

Our best Turkish Airlines deals on Chicago to Bilbao flight tickets

Turkish Airlines

Apr 6

ORD7:50 pmChicago O'Hare Intl

38h 30m

1 stop

BIO5:20 pmBilbao

Apr 21

BIO11:55 amBilbao

28h 45m

1 stop

ORD9:40 amChicago O'Hare Intl

$566

Find similar

Turkish Airlines

Jan 23

ORD8:20 pmChicago O'Hare Intl

36h 50m

1 stop

BIO4:10 pmBilbao

Jan 27

BIO12:00 pmBilbao

29h 05m

1 stop

ORD10:05 amChicago O'Hare Intl

$650

Find similar

Turkish Airlines

Mar 20

ORD12:50 pmChicago O'Hare Intl

16h 10m

1 stop

BIO11:00 amBilbao

Mar 29

BIO6:20 pmBilbao

22h 20m

1 stop

ORD9:40 amChicago O'Hare Intl

$666

Find similar

Iberia flights from Chicago to Bilbao

Our best Iberia deals on Chicago to Bilbao flight tickets

Iberia

Dec 31

ORD5:40 pmChicago O'Hare Intl

12h 10m

1 stop

BIO12:50 pmBilbao

Jan 7

BIO6:10 pmBilbao

51h 45m

2 stops

ORD2:55 pmChicago O'Hare Intl

$846

Find similar

Iberia

Apr 22

ORD11:36 amChicago O'Hare Intl

13h 54m

2 stops

BIO8:30 amBilbao

Apr 29

BIO9:15 amBilbao

12h 00m

1 stop

ORD2:15 pmChicago O'Hare Intl

$1,001

Find similar

Iberia

Apr 22

ORD11:36 amChicago O'Hare Intl

13h 54m

2 stops

BIO8:30 amBilbao

Apr 29

BIO7:00 amBilbao

14h 15m

2 stops

ORD2:15 pmChicago O'Hare Intl

$1,008

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 4/6

7:50 pm-5:20 pm

1 stop38h 30m

Bilbao

Tue 4/21

11:55 am-9:40 am

1 stop28h 45m

$566

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-10:05 am

1 stop29h 05m

$650

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 12/7

12:50 pm-11:45 am

2 stops15h 55m

Bilbao

Sat 12/13

9:05 pm-1:10 pm

2 stops23h 05m

$654

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 3/20

12:50 pm-11:00 am

1 stop16h 10m

Bilbao

Sun 3/29

6:20 pm-9:40 am

1 stop22h 20m

$666

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 4/6

7:50 pm-5:20 pm

1 stop38h 30m

Bilbao

Tue 4/21

1:10 pm-9:40 am

2 stops27h 30m

$671

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 1/23

5:20 pm-5:20 pm

1 stop17h 00m

Bilbao

Tue 1/27

6:50 am-9:05 pm

2 stops21h 15m

$679

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 12/7

12:50 pm-11:45 am

2 stops15h 55m

Bilbao

Sat 12/13

8:30 am-8:01 am

3 stops30h 31m

$687

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 4/3

7:50 pm-5:20 pm

1 stop38h 30m

Bilbao

Tue 4/7

11:55 am-6:15 pm

1 stop37h 20m

$690

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Mon 4/6

10:35 am-10:25 am

2 stops16h 50m

Bilbao

Tue 4/21

6:50 am-6:05 pm

2 stops18h 15m

$843

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Fri 4/3

6:00 am-10:25 am

2 stops21h 25m

Bilbao

Tue 4/7

5:15 pm-6:34 pm

2 stops32h 19m

$1,009

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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

Direct flights	None

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

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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 3,025 reviews	Search Iberia flights
United Airlines	PriceFrom $639	Free Cancellation	Rating 7.4 9,020 reviews	Search United Airlines flights
Lufthansa	PriceFrom $698	Free Cancellation	Rating 6.8 7,576 reviews	Search Lufthansa flights

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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.

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Cheap flights from Chicago to Bilbao from $319

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 12/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Turkish Airlines flights from Chicago to Bilbao

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Our best Iberia deals on Chicago to Bilbao flight tickets

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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?

KLM, Delta, and Turkish Airlines are the most popular carriers 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

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