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Cheap flights from Chicago to Bilbao from $363

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 7/21. 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
0 bags

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Find the cheapest flights from Chicago to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
8:10 pm - 5:20 pm
ORD
-
BIO
38h 10m
1 stop
Turkish Airlines Logo
6:20 pm - 9:40 am
BIO
-
ORD
22h 20m
1 stop
$684Turkish Airlines
Tue, Sep 15 - Thu, Sep 24
Turkish Airlines Logo
8:10 pm - 5:20 pm
ORD
-
BIO
38h 10m
1 stop
Turkish Airlines Logo
6:20 pm - 9:40 am
BIO
-
ORD
22h 20m
1 stop
$697Turkish Airlines
Mon, Sep 14 - Thu, Sep 24
Turkish Airlines Logo
8:10 pm - 5:20 pm
ORD
-
BIO
38h 10m
1 stop
Turkish Airlines Logo
6:20 pm - 9:40 am
BIO
-
ORD
22h 20m
1 stop
$698Turkish Airlines
Mon, Sep 14 - Thu, Sep 24
Turkish Airlines Logo
8:10 pm - 5:20 pm
ORD
-
BIO
38h 10m
1 stop
Turkish Airlines Logo
6:20 pm - 9:40 am
BIO
-
ORD
22h 20m
1 stop
$700Turkish Airlines
Tue, Sep 15 - Thu, Sep 24
Turkish Airlines Logo
8:10 pm - 5:20 pm
ORD
-
BIO
38h 10m
1 stop
Turkish Airlines Logo
12:10 pm - 9:40 am
BIO
-
ORD
28h 30m
1 stop
$728Turkish Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
6:35 pm - 11:15 pm
ORD
-
BIO
21h 40m
2 stops
Multiple Airlines Logo
6:45 am - 4:00 pm
BIO
-
ORD
16h 15m
1 stop
$741Multiple Airlines
Wed, Sep 30 - Tue, Oct 13
Multiple Airlines Logo
6:35 pm - 11:15 pm
ORD
-
BIO
21h 40m
2 stops
Multiple Airlines Logo
6:45 am - 9:22 pm
BIO
-
ORD
21h 37m
2 stops
$752Multiple Airlines
Wed, Sep 30 - Tue, Oct 13
Delta Logo
6:58 pm - 4:30 pm
MDW
-
BIO
14h 32m
2 stops
Delta Logo
10:30 am - 10:36 pm
BIO
-
MDW
19h 06m
2 stops
$900Delta
Sun, Aug 2 - Tue, Aug 18
Delta Logo
5:25 pm - 4:30 pm
MDW
-
BIO
16h 05m
2 stops
Delta Logo
6:45 am - 6:31 pm
BIO
-
MDW
18h 46m
2 stops
$936Delta
Mon, Sep 14 - Sat, Sep 26
Air France Logo
1:22 pm - 9:50 am
MDW
-
BIO
13h 28m
2 stops
Air France Logo
7:10 am - 4:16 pm
BIO
-
MDW
16h 06m
2 stops
$960Air France
Wed, Jun 3 - Thu, Jun 11

American Airlines flights from Chicago to Bilbao

Our best American Airlines deals on Chicago to Bilbao flight tickets
American Airlines
Oct 21
ORD6:35 pmChicago O'Hare Intl
16h 15m
2 stops
BIO5:50 pmBilbao
Oct 31
BIO9:15 amBilbao
16h 35m
1 stop
ORD7:50 pmChicago O'Hare Intl
$791
American Airlines
Sep 28
ORD9:27 amChicago O'Hare Intl
16h 03m
2 stops
BIO8:30 amBilbao
Oct 9
BIO9:15 amBilbao
17h 20m
2 stops
ORD7:35 pmChicago O'Hare Intl
$893

SWISS flights from Chicago to Bilbao

Our best SWISS deals on Chicago to Bilbao flight tickets
SWISS
Sep 28
ORD2:20 pmChicago O'Hare Intl
22h 45m
1 stop
BIO8:05 pmBilbao
Oct 9
BIO2:00 pmBilbao
29h 35m
2 stops
ORD12:35 pmChicago O'Hare Intl
$829
SWISS
May 18
ORD4:25 pmChicago O'Hare Intl
20h 40m
2 stops
BIO8:05 pmBilbao
Jun 1
BIO2:10 pmBilbao
29h 45m
2 stops
ORD12:55 pmChicago O'Hare Intl
$2,109

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 May 7, 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

Tue 9/15

8:10 pm-5:20 pm

1 stop38h 10m

Bilbao

Thu 9/24

6:20 pm-9:40 am

1 stop22h 20m

$684

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 9/14

8:10 pm-5:20 pm

1 stop38h 10m

Bilbao

Thu 9/24

6:20 pm-9:40 am

1 stop22h 20m

$697

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 9/14

8:10 pm-5:20 pm

1 stop38h 10m

Bilbao

Thu 9/24

6:20 pm-9:40 am

1 stop22h 20m

$698

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 9/15

8:10 pm-5:20 pm

1 stop38h 10m

Bilbao

Thu 9/24

6:20 pm-9:40 am

1 stop22h 20m

$700

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 9/8

8:10 pm-5:20 pm

1 stop38h 10m

Bilbao

Tue 9/15

12:10 pm-9:40 am

1 stop28h 30m

$728

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 9/30

6:35 pm-11:15 pm

2 stops21h 40m

Bilbao

Tue 10/13

6:45 am-4:00 pm

1 stop16h 15m

$741

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 9/30

6:35 pm-11:15 pm

2 stops21h 40m

Bilbao

Tue 10/13

6:45 am-9:22 pm

2 stops21h 37m

$752

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Sun 8/2

6:58 pm-4:30 pm

2 stops14h 32m

Bilbao

Tue 8/18

10:30 am-10:36 pm

2 stops19h 06m

$900

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Mon 9/14

5:25 pm-4:30 pm

2 stops16h 05m

Bilbao

Sat 9/26

6:45 am-6:31 pm

2 stops18h 46m

$936
Quickest round-trip

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Wed 6/3

1:22 pm-9:50 am

2 stops13h 28m

Bilbao

Thu 6/11

7:10 am-4:16 pm

2 stops16h 06m

$960

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 cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from Chicago is in March. Flight prices, which tend to average around $528, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in March, then August is your next best option. Flight prices from Chicago to Bilbao during August average around $547.

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 00m

Direct flights

None
The fastest flight from Chicago to Bilbao takes 12h 00m
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 12h 00m.

  • 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
7,975 reviews
Search Lufthansa flights
United AirlinesPriceFrom $699Free CancellationRating
7.4
9,690 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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