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.

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.

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.

$394 Cheap Flights from Chicago to Bilbao in 2026

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Find the cheapest flights from Chicago to Bilbao

Round-trip

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Cheap round-trip flights

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7:15 pm - 11:35 am

ORD

BIO

33h 20m1 stop

7:35 pm - 4:10 pm

BIO

ORD

27h 35m1 stop

$505Scandinavian Airlines

Sat, Apr 11 - Fri, Apr 17

7:15 pm - 11:35 am

ORD

BIO

33h 20m1 stop

9:25 pm - 4:10 pm

BIO

ORD

25h 45m1 stop

$535Scandinavian Airlines

Sat, Apr 25 - Sun, May 17

9:50 pm - 9:55 pm

ORD

BIO

17h 05m1 stop

6:45 am - 4:20 pm

BIO

ORD

15h 35m1 stop

$572United Airlines

Sun, Feb 22 - Tue, Mar 10

5:37 pm - 5:20 pm

ORD

BIO

16h 43m2 stops

6:50 am - 6:31 pm

BIO

ORD

17h 41m2 stops

$576Delta

Sun, Feb 22 - Tue, Mar 10

9:50 pm - 11:20 pm

ORD

BIO

18h 30m1 stop

6:45 am - 2:25 pm

BIO

ORD

13h 40m1 stop

$591Lufthansa

Sat, Feb 28 - Tue, Mar 10

7:20 pm - 6:40 pm

ORD

BIO

16h 20m1 stop

7:30 pm - 9:48 pm

BIO

ORD

33h 18m2 stops

$596Scandinavian Airlines

Thu, Feb 12 - Mon, Feb 16

9:15 pm - 11:20 pm

ORD

BIO

19h 05m2 stops

6:45 am - 4:20 pm

BIO

ORD

15h 35m1 stop

$602Lufthansa

Sat, Feb 28 - Tue, Mar 10

11:25 am - 11:10 am

ORD

BIO

16h 45m1 stop

6:15 pm - 9:40 am

BIO

ORD

22h 25m1 stop

$606Turkish Airlines

Mon, Mar 30 - Wed, Apr 8

11:50 am - 11:00 am

ORD

BIO

16h 10m1 stop

5:10 pm - 10:05 am

BIO

ORD

23h 55m1 stop

$619Turkish Airlines

Thu, Feb 12 - Sun, Feb 15

6:17 pm - 5:20 pm

MDW

BIO

16h 03m2 stops

6:50 am - 5:54 pm

BIO

MDW

17h 04m2 stops

$686Delta

Sun, Feb 22 - Tue, Mar 10

Scandinavian Airlines flights from Chicago to Bilbao

Our best Scandinavian Airlines deals on Chicago to Bilbao flight tickets

Scandinavian Airlines

Apr 11

ORD7:15 pmChicago O'Hare Intl

33h 20m

1 stop

BIO11:35 amBilbao

Apr 17

BIO7:35 pmBilbao

27h 35m

1 stop

ORD4:10 pmChicago O'Hare Intl

$505

Find similar

Scandinavian Airlines

Apr 25

ORD7:15 pmChicago O'Hare Intl

33h 20m

1 stop

BIO11:35 amBilbao

May 17

BIO9:25 pmBilbao

25h 45m

1 stop

ORD4:10 pmChicago O'Hare Intl

$535

Find similar

Scandinavian Airlines

Feb 12

ORD7:20 pmChicago O'Hare Intl

16h 20m

1 stop

BIO6:40 pmBilbao

Feb 16

BIO7:30 pmBilbao

33h 18m

2 stops

ORD9:48 pmChicago O'Hare Intl

$596

Find similar

United Airlines flights from Chicago to Bilbao

Our best United Airlines deals on Chicago to Bilbao flight tickets

United Airlines

Feb 22

ORD9:50 pmChicago O'Hare Intl

17h 05m

1 stop

BIO9:55 pmBilbao

Mar 10

BIO6:45 amBilbao

15h 35m

1 stop

ORD4:20 pmChicago O'Hare Intl

$572

Find similar

United Airlines

Mar 14

ORD9:32 pmChicago O'Hare Intl

36h 38m

2 stops

BIO4:10 pmBilbao

Mar 22

BIO11:35 amBilbao

25h 53m

2 stops

ORD7:28 amChicago O'Hare Intl

$644

Find similar

United Airlines

Feb 27

ORD2:19 pmChicago O'Hare Intl

26h 01m

2 stops

BIO11:20 pmBilbao

Mar 3

BIO6:45 amBilbao

15h 35m

1 stop

ORD3:20 pmChicago O'Hare Intl

$676

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 4/11

7:15 pm-11:35 am

1 stop33h 20m

Bilbao

Fri 4/17

7:35 pm-4:10 pm

1 stop27h 35m

$505

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

$535

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 2/22

9:50 pm-9:55 pm

1 stop17h 05m

Bilbao

Tue 3/10

6:45 am-4:20 pm

1 stop15h 35m

$572

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 2/22

5:37 pm-5:20 pm

2 stops16h 43m

Bilbao

Tue 3/10

6:50 am-6:31 pm

2 stops17h 41m

$576

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 2/28

9:50 pm-11:20 pm

1 stop18h 30m

Bilbao

Tue 3/10

6:45 am-2:25 pm

1 stop13h 40m

$591

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 2/12

7:20 pm-6:40 pm

1 stop16h 20m

Bilbao

Mon 2/16

7:30 pm-9:48 pm

2 stops33h 18m

$596

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 2/28

9:15 pm-11:20 pm

2 stops19h 05m

Bilbao

Tue 3/10

6:45 am-4:20 pm

1 stop15h 35m

$602

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 3/30

11:25 am-11:10 am

1 stop16h 45m

Bilbao

Wed 4/8

6:15 pm-9:40 am

1 stop22h 25m

$606

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 2/12

11:50 am-11:00 am

1 stop16h 10m

Bilbao

Sun 2/15

5:10 pm-10:05 am

1 stop23h 55m

$619

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Sun 2/22

6:17 pm-5:20 pm

2 stops16h 03m

Bilbao

Tue 3/10

6:50 am-5:54 pm

2 stops17h 04m

$686

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?

Lufthansa, SWISS, and Delta 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 30% 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	15h 56m
Direct flights	None

The fastest flight from Chicago to Bilbao takes 15h 56m

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 15h 56m.
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 Lufthansa, making up 50% of the total bookings. Other popular airlines include United Airlines with 50%.

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 7,675 reviews	Search Lufthansa flights
Iberia	PriceFrom $656	Free Cancellation	Rating 7.0 3,058 reviews	Search Iberia flights
United Airlines	PriceFrom $744	Free Cancellation	Rating 7.4 9,126 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.