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Cheap flights from Chicago to Bilbao from $329

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 10/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
6:00 pm - 5:35 pm
ORD
-
BIO
16h 35m
1 stop
TAP AIR PORTUGAL Logo
6:50 pm - 4:00 pm
BIO
-
ORD
28h 10m
1 stop
$595TAP AIR PORTUGAL
Fri, Oct 9 - Tue, Oct 20
Scandinavian Airlines Logo
7:15 pm - 6:45 pm
ORD
-
BIO
16h 30m
1 stop
Scandinavian Airlines Logo
7:35 pm - 4:10 pm
BIO
-
ORD
27h 35m
1 stop
$617Scandinavian Airlines
Tue, Aug 18 - Wed, Aug 26
Scandinavian Airlines Logo
7:15 pm - 6:45 pm
ORD
-
BIO
16h 30m
1 stop
Scandinavian Airlines Logo
7:35 pm - 4:10 pm
BIO
-
ORD
27h 35m
1 stop
$622Scandinavian Airlines
Thu, Aug 20 - Wed, Sep 2
Scandinavian Airlines Logo
7:15 pm - 6:45 pm
ORD
-
BIO
16h 30m
1 stop
Scandinavian Airlines Logo
7:35 pm - 4:10 pm
BIO
-
ORD
27h 35m
1 stop
$623Scandinavian Airlines
Thu, Aug 20 - Wed, Sep 2
Turkish Airlines Logo
8:15 pm - 4:15 pm
ORD
-
BIO
37h 00m
1 stop
Turkish Airlines Logo
11:55 am - 6:20 pm
BIO
-
ORD
37h 25m
1 stop
$703Turkish Airlines
Mon, Nov 9 - Fri, Nov 20
Turkish Airlines Logo
8:10 pm - 11:10 am
ORD
-
BIO
32h 00m
1 stop
Turkish Airlines Logo
6:20 pm - 9:40 am
BIO
-
ORD
22h 20m
1 stop
$706Turkish Airlines
Wed, Oct 7 - Wed, Oct 21
Delta Logo
10:35 am - 9:50 am
MDW
-
BIO
16h 15m
2 stops
Delta Logo
6:50 am - 6:37 pm
BIO
-
MDW
17h 47m
2 stops
$740Delta
Tue, Oct 20 - Thu, Oct 29
Delta Logo
10:58 am - 9:50 am
MDW
-
BIO
15h 52m
2 stops
Delta Logo
6:45 am - 4:39 pm
BIO
-
MDW
16h 54m
2 stops
$790Delta
Fri, Oct 9 - Tue, Oct 20
Multiple Airlines Logo
12:46 pm - 9:50 am
MDW
-
BIO
14h 04m
2 stops
Multiple Airlines Logo
7:10 am - 4:15 pm
BIO
-
MDW
16h 05m
2 stops
$879Multiple Airlines
Thu, Aug 13 - Thu, Aug 20
Multiple Airlines Logo
12:46 pm - 9:50 am
MDW
-
BIO
14h 04m
2 stops
Multiple Airlines Logo
7:10 am - 4:15 pm
BIO
-
MDW
16h 05m
2 stops
$882Multiple Airlines
Thu, Aug 13 - Thu, Aug 20

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Scandinavian Airlines flights from Chicago to Bilbao

Our best Scandinavian Airlines deals on Chicago to Bilbao flight tickets
Scandinavian Airlines
Aug 18
ORD7:15 pmChicago O'Hare Intl
16h 30m
1 stop
BIO6:45 pmBilbao
Aug 26
BIO7:35 pmBilbao
27h 35m
1 stop
ORD4:10 pmChicago O'Hare Intl
$617
Scandinavian Airlines
Aug 20
ORD7:15 pmChicago O'Hare Intl
16h 30m
1 stop
BIO6:45 pmBilbao
Sep 2
BIO7:35 pmBilbao
27h 35m
1 stop
ORD4:10 pmChicago O'Hare Intl
$622
Scandinavian Airlines
Aug 20
ORD7:15 pmChicago O'Hare Intl
16h 30m
1 stop
BIO6:45 pmBilbao
Sep 2
BIO7:35 pmBilbao
27h 35m
1 stop
ORD4:10 pmChicago O'Hare Intl
$623

SWISS flights from Chicago to Bilbao

Our best SWISS deals on Chicago to Bilbao flight tickets
SWISS
Sep 14
ORD2:20 pmChicago O'Hare Intl
13h 30m
1 stop
BIO10:50 amBilbao
Sep 24
BIO8:45 pmBilbao
22h 50m
1 stop
ORD12:35 pmChicago O'Hare Intl
$778
SWISS
Sep 14
ORD2:20 pmChicago O'Hare Intl
13h 30m
1 stop
BIO10:50 amBilbao
Sep 24
BIO8:45 pmBilbao
22h 50m
1 stop
ORD12:35 pmChicago O'Hare Intl
$779
SWISS
Sep 14
ORD2:20 pmChicago O'Hare Intl
13h 30m
1 stop
BIO10:50 amBilbao
Sep 24
BIO2:00 pmBilbao
29h 35m
2 stops
ORD12:35 pmChicago O'Hare Intl
$808

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Bilbao that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 29, 2026.
Use the filters below to find and compare flights from Chicago to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 10/9

6:00 pm-5:35 pm

1 stop16h 35m

Bilbao

Tue 10/20

6:50 pm-4:00 pm

1 stop28h 10m

$595

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 8/18

7:15 pm-6:45 pm

1 stop16h 30m

Bilbao

Wed 8/26

7:35 pm-4:10 pm

1 stop27h 35m

$617

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 8/20

7:15 pm-6:45 pm

1 stop16h 30m

Bilbao

Wed 9/2

7:35 pm-4:10 pm

1 stop27h 35m

$622

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 8/20

7:15 pm-6:45 pm

1 stop16h 30m

Bilbao

Wed 9/2

7:35 pm-4:10 pm

1 stop27h 35m

$623

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 11/9

8:15 pm-4:15 pm

1 stop37h 00m

Bilbao

Fri 11/20

11:55 am-6:20 pm

1 stop37h 25m

$703

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 10/7

8:10 pm-11:10 am

1 stop32h 00m

Bilbao

Wed 10/21

6:20 pm-9:40 am

1 stop22h 20m

$706

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Tue 10/20

10:35 am-9:50 am

2 stops16h 15m

Bilbao

Thu 10/29

6:50 am-6:37 pm

2 stops17h 47m

$740

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Fri 10/9

10:58 am-9:50 am

2 stops15h 52m

Bilbao

Tue 10/20

6:45 am-4:39 pm

2 stops16h 54m

$790
Quickest round-trip

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Thu 8/13

12:46 pm-9:50 am

2 stops14h 04m

Bilbao

Thu 8/20

7:10 am-4:15 pm

2 stops16h 05m

$879

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Thu 8/13

12:46 pm-9:50 am

2 stops14h 04m

Bilbao

Thu 8/20

7:10 am-4:15 pm

2 stops16h 05m

$882

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between Chicago and Bilbao?

What is the cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from Chicago is in February. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in February, then September is your next best option. Flight prices from Chicago to Bilbao during September average around $509.

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

11h 25m

Direct flights

None
The fastest flight from Chicago to Bilbao takes 11h 25m
There are no direct flights from Chicago to Bilbao. There are no popular flight routes from Chicago to Bilbao.
Search flight deals

Frequently asked questions about flying from Chicago to Bilbao

  • 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 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?

  • 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?

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
LufthansaPriceFrom $584Free CancellationRating
6.8
8,106 reviews
Search Lufthansa flights
United AirlinesPriceFrom $699Free CancellationRating
7.4
9,895 reviews
Search United Airlines flights

Traveling to a place near Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
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.

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