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

TAP AIR PORTUGAL, Delta, and Air France are the most popular carriers operating from Chicago 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.

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 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 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 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 September 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.

$258 Cheap Flights from Chicago to Bilbao in 2025/26

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Find the cheapest flights from Chicago to Bilbao

Round-trip

One-way

Last minute

Cheap round-trip flights

9:50 pm - 11:05 pmORD-BIO

18h 15m1 stop

11:35 am - 6:25 pmBIO-ORD

13h 50m1 stop

$456United Airlines

Find Deal

Sun, Nov 2 - Tue, Nov 18

9:50 pm - 6:05 pmORD-BIO

13h 15m1 stop

7:25 am - 5:48 pmBIO-ORD

17h 23m2 stops

$465Multiple Airlines

Find Deal

Sun, Nov 2 - Tue, Nov 18

3:35 pm - 5:50 pmORD-BIO

19h 15m1 stop

7:25 am - 7:25 pmBIO-ORD

18h 00m1 stop

$481Lufthansa

Find Deal

Mon, Oct 20 - Fri, Oct 31

4:45 pm - 12:50 pmORD-BIO

13h 05m1 stop

6:45 am - 3:30 pmBIO-ORD

14h 45m1 stop

$520Iberia

Find Deal

Thu, Mar 5 - Thu, Mar 12

11:45 am - 8:30 amORD-BIO

13h 45m2 stops

9:15 am - 3:30 pmBIO-ORD

12h 15m1 stop

$524Iberia

Find Deal

Thu, Mar 5 - Thu, Mar 12

10:40 am - 5:50 pmORD-BIO

24h 10m2 stops

6:45 am - 2:48 pmBIO-ORD

15h 03m2 stops

$539Air Canada

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Thu, Oct 16 - Thu, Oct 23

9:08 pm - 12:00 pmORD-BIO

32h 52m2 stops

6:50 pm - 6:25 pmBIO-ORD

30h 35m1 stop

$547Lufthansa

Find Deal

Sat, Nov 1 - Mon, Nov 10

9:20 pm - 11:00 amORD-BIO

31h 40m1 stop

12:00 pm - 10:05 amBIO-ORD

29h 05m1 stop

$634Turkish Airlines

Find Deal

Sat, Nov 1 - Mon, Nov 10

2:00 pm - 12:05 pmORD-BIO

15h 05m2 stops

12:45 pm - 3:10 pmBIO-ORD

57h 25m2 stops

$651Air Canada

Find Deal

Mon, Nov 24 - Sun, Nov 30

9:20 pm - 11:00 amORD-BIO

31h 40m1 stop

12:00 pm - 6:25 pmBIO-ORD

37h 25m1 stop

$653Turkish Airlines

Find Deal

Sat, Nov 1 - Mon, Nov 10

Scandinavian Airlines flights from Chicago to Bilbao

Our best Scandinavian Airlines deals on Chicago to Bilbao flight tickets

Scandinavian Airlines

Dec 11

ORD7:10 amChicago O'Hare Intl

28h 30m

2 stops

BIO6:40 pmBilbao

Jan 2

BIO7:30 pmBilbao

28h 15m

1 stop

ORD4:45 pmChicago O'Hare Intl

$1,009

Find similar

Scandinavian Airlines

Dec 14

ORD7:10 amChicago O'Hare Intl

28h 30m

2 stops

BIO6:40 pmBilbao

Jan 2

BIO7:30 pmBilbao

28h 15m

1 stop

ORD4:45 pmChicago O'Hare Intl

$1,079

Find similar

Scandinavian Airlines

Dec 14

ORD7:20 pmChicago O'Hare Intl

16h 20m

1 stop

BIO6:40 pmBilbao

Jan 2

BIO7:30 pmBilbao

28h 15m

1 stop

ORD4:45 pmChicago O'Hare Intl

$1,113

Find similar

Turkish Airlines flights from Chicago to Bilbao

Our best Turkish Airlines deals on Chicago to Bilbao flight tickets

Turkish Airlines

Nov 1

ORD9:20 pmChicago O'Hare Intl

31h 40m

1 stop

BIO11:00 amBilbao

Nov 10

BIO12:00 pmBilbao

29h 05m

1 stop

ORD10:05 amChicago O'Hare Intl

$634

Find similar

Turkish Airlines

Nov 1

ORD9:20 pmChicago O'Hare Intl

31h 40m

1 stop

BIO11:00 amBilbao

Nov 10

BIO12:00 pmBilbao

37h 25m

1 stop

ORD6:25 pmChicago O'Hare Intl

$653

Find similar

Turkish Airlines

Nov 20

ORD11:50 amChicago O'Hare Intl

16h 10m

1 stop

BIO11:00 amBilbao

Nov 30

BIO5:10 pmBilbao

23h 55m

1 stop

ORD10:05 amChicago O'Hare Intl

$720

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 11/2

9:50 pm-11:05 pm

1 stop18h 15m

Bilbao

Tue 11/18

11:35 am-6:25 pm

1 stop13h 50m

$456

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 11/2

9:50 pm-6:05 pm

1 stop13h 15m

Bilbao

Tue 11/18

7:25 am-5:48 pm

2 stops17h 23m

$465

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 10/20

3:35 pm-5:50 pm

1 stop19h 15m

Bilbao

Fri 10/31

7:25 am-7:25 pm

1 stop18h 00m

$481

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 3/5

4:45 pm-12:50 pm

1 stop13h 05m

Bilbao

Thu 3/12

6:45 am-3:30 pm

1 stop14h 45m

$520

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 3/5

11:45 am-8:30 am

2 stops13h 45m

Bilbao

Thu 3/12

9:15 am-3:30 pm

1 stop12h 15m

$524

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 10/16

10:40 am-5:50 pm

2 stops24h 10m

Bilbao

Thu 10/23

6:45 am-2:48 pm

2 stops15h 03m

$539

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 11/1

9:08 pm-12:00 pm

2 stops32h 52m

Bilbao

Mon 11/10

6:50 pm-6:25 pm

1 stop30h 35m

$547

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 11/1

9:20 pm-11:00 am

1 stop31h 40m

Bilbao

Mon 11/10

12:00 pm-10:05 am

1 stop29h 05m

$634

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 11/24

2:00 pm-12:05 pm

2 stops15h 05m

Bilbao

Sun 11/30

12:45 pm-3:10 pm

2 stops57h 25m

$651

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 11/1

9:20 pm-11:00 am

1 stop31h 40m

Bilbao

Mon 11/10

12:00 pm-6:25 pm

1 stop37h 25m

$653

Flights are sorted by cheapest round-trip flights first.

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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.

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 30m.
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 September 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 31% of the total bookings. Other popular airlines include United Airlines with 30%, Iberia with 21%, and Turkish Airlines with 18%.

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
United Airlines	PriceFrom $639	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
Iberia	PriceFrom $640	Free Cancellation	Rating 7.0 2,925 reviews	Search Iberia flights
Lufthansa	PriceFrom $646	Free Cancellation	Rating 6.8 7,409 reviews	Search Lufthansa flights

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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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Flights to Arrecifefrom $418

Cheap flights from Chicago to Bilbao from $258

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 9/22. 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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Scandinavian Airlines flights from Chicago to Bilbao

Our best Scandinavian Airlines deals on Chicago to Bilbao flight tickets

Turkish Airlines flights from Chicago to Bilbao

Our best Turkish Airlines 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?

TAP AIR PORTUGAL, Delta, and Air France 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