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?

Munich (MUC) has the shortest average layover time for this route: 2h 03m.

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

Frankfurt am Main (FRA) was the most common stop: 64% of momondo users choosing 1-stop flights on this route connected there.

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 January 2026.

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.

$227 Cheap Flights from Chicago to Bilbao in 2026

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Find the cheapest flights from Chicago to Bilbao

Round-trip

One-way

Cheap round-trip flights

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8:25 pm - 6:35 pm

ORD

BIO

15h 10m

1 stop

6:40 pm - 3:00 pm

BIO

ORD

27h 20m

1 stop

$396TAP AIR PORTUGAL

Sun, Feb 15 - Tue, Mar 3

8:25 pm - 6:35 pm

ORD

BIO

15h 10m

1 stop

6:40 pm - 3:00 pm

BIO

ORD

27h 20m

1 stop

$411TAP AIR PORTUGAL

Sun, Feb 15 - Tue, Mar 3

10:50 pm - 11:05 pm

ORD

BIO

18h 15m

1 stop

6:50 am - 12:55 pm

BIO

ORD

13h 05m

1 stop

$547Lufthansa

Mon, Mar 23 - Wed, Apr 8

10:50 pm - 11:05 pm

ORD

BIO

18h 15m

1 stop

6:50 am - 7:55 pm

BIO

ORD

20h 05m

1 stop

$549Lufthansa

Mon, Mar 23 - Wed, Apr 8

2:10 pm - 11:30 am

ORD

BIO

15h 20m

2 stops

6:45 am - 2:30 pm

BIO

ORD

14h 45m

1 stop

$575Delta

Mon, Mar 23 - Wed, Apr 8

1:37 pm - 11:30 am

ORD

BIO

15h 53m

2 stops

6:45 am - 2:30 pm

BIO

ORD

14h 45m

1 stop

$576Delta

Mon, Mar 23 - Wed, Apr 8

7:14 pm - 5:20 pm

ORD

BIO

16h 06m

2 stops

6:45 am - 6:31 pm

BIO

ORD

18h 46m

2 stops

$584Delta

Mon, Mar 23 - Wed, Apr 8

11:25 am - 11:10 am

ORD

BIO

16h 45m

1 stop

12:10 pm - 9:40 am

BIO

ORD

28h 30m

1 stop

$596Turkish Airlines

Thu, Apr 2 - Mon, Apr 13

11:25 am - 5:20 pm

ORD

BIO

22h 55m

1 stop

12:10 pm - 6:15 pm

BIO

ORD

37h 05m

1 stop

$605Turkish Airlines

Wed, Apr 1 - Fri, Apr 10

7:20 pm - 4:30 pm

MDW

BIO

14h 10m

2 stops

7:10 am - 5:54 pm

BIO

MDW

17h 44m

2 stops

$964Scandinavian Airlines

Fri, Apr 3 - Sun, Apr 12

United Airlines flights from Chicago to Bilbao

Our best United Airlines deals on Chicago to Bilbao flight tickets

United Airlines

Feb 27

ORD2:19 pmChicago O'Hare Intl

26h 01m

2 stops

BIO11:20 pmBilbao

Mar 3

BIO6:45 amBilbao

13h 40m

1 stop

ORD1:25 pmChicago O'Hare Intl

$678

United Airlines

Feb 28

ORD8:40 pmChicago O'Hare Intl

32h 20m

2 stops

BIO12:00 pmBilbao

Mar 8

BIO6:45 amBilbao

15h 35m

1 stop

ORD3:20 pmChicago O'Hare Intl

$693

United Airlines

Apr 1

ORD1:00 pmChicago O'Hare Intl

20h 00m

2 stops

BIO4:00 pmBilbao

Apr 14

BIO6:50 amBilbao

13h 05m

1 stop

ORD12:55 pmChicago O'Hare Intl

$707

TAP AIR PORTUGAL flights from Chicago to Bilbao

Our best TAP AIR PORTUGAL deals on Chicago to Bilbao flight tickets

TAP AIR PORTUGAL

Feb 15

ORD8:25 pmChicago O'Hare Intl

15h 10m

1 stop

BIO6:35 pmBilbao

Mar 3

BIO6:40 pmBilbao

27h 20m

1 stop

ORD3:00 pmChicago O'Hare Intl

$396

TAP AIR PORTUGAL

Feb 15

ORD8:25 pmChicago O'Hare Intl

15h 10m

1 stop

BIO6:35 pmBilbao

Mar 3

BIO6:40 pmBilbao

27h 20m

1 stop

ORD3:00 pmChicago O'Hare Intl

$411

TAP AIR PORTUGAL

Apr 4

ORD6:15 pmChicago O'Hare Intl

16h 50m

1 stop

BIO6:05 pmBilbao

Apr 11

BIO6:35 pmBilbao

28h 25m

1 stop

ORD4:00 pmChicago O'Hare Intl

$647

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 2/15

8:25 pm-6:35 pm

1 stop15h 10m

Bilbao

Tue 3/3

6:40 pm-3:00 pm

1 stop27h 20m

$396

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 2/15

8:25 pm-6:35 pm

1 stop15h 10m

Bilbao

Tue 3/3

6:40 pm-3:00 pm

1 stop27h 20m

$411

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 3/23

10:50 pm-11:05 pm

1 stop18h 15m

Bilbao

Wed 4/8

6:50 am-12:55 pm

1 stop13h 05m

$547

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 3/23

10:50 pm-11:05 pm

1 stop18h 15m

Bilbao

Wed 4/8

6:50 am-7:55 pm

1 stop20h 05m

$549

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

1:37 pm-11:30 am

2 stops15h 53m

Bilbao

Wed 4/8

6:45 am-2:30 pm

1 stop14h 45m

$576

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 3/23

7:14 pm-5:20 pm

2 stops16h 06m

Bilbao

Wed 4/8

6:45 am-6:31 pm

2 stops18h 46m

$584

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 4/2

11:25 am-11:10 am

1 stop16h 45m

Bilbao

Mon 4/13

12:10 pm-9:40 am

1 stop28h 30m

$596

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 4/1

11:25 am-5:20 pm

1 stop22h 55m

Bilbao

Fri 4/10

12:10 pm-6:15 pm

1 stop37h 05m

$605

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Fri 4/3

7:20 pm-4:30 pm

2 stops14h 10m

Bilbao

Sun 4/12

7:10 am-5:54 pm

2 stops17h 44m

$964

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

Airlines

Layovers

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

Air France is the most popular carrier operating from Chicago to Bilbao

What airlines fly to Bilbao?

United Airlines, Lufthansa and Iberia are the top three most popular airlines that fly to Bilbao from Chicago according to our data. United Airlines 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.

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	12h 25m
Direct flights	None

The fastest flight from Chicago to Bilbao takes 12h 25m

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 12h 25m.
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 January 2026.
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 United Airlines, making up 53% of the total bookings. Other popular airlines include Lufthansa 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
Lufthansa	PriceFrom $575	Free Cancellation	Rating 6.8 7,756 reviews	Search Lufthansa flights
Iberia	PriceFrom $656	Free Cancellation	Rating 7.0 3,100 reviews	Search Iberia flights
United Airlines	PriceFrom $699	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines 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.