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Cheap flights from Chicago O'Hare Intl Airport to Bilbao from $343

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 O'Hare Intl Airport to Bilbao departing on 4/4. 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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0 bags

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Find the cheapest flights from Chicago O'Hare Intl Airport to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
11:50 am - 4:10 pm
ORD
-
BIO
21h 20m
1 stop
Turkish Airlines Logo
12:00 pm - 7:25 pm
BIO
-
ORD
37h 25m
1 stop
$559Turkish Airlines
Wed, Mar 4 - Tue, Mar 17
Lufthansa Logo
9:40 pm - 11:25 pm
ORD
-
BIO
18h 45m
1 stop
Lufthansa Logo
6:50 am - 12:55 pm
BIO
-
ORD
13h 05m
1 stop
$564Lufthansa
Wed, Apr 22 - Wed, Apr 29
Lufthansa Logo
9:40 pm - 5:55 pm
ORD
-
BIO
13h 15m
1 stop
Lufthansa Logo
6:50 am - 12:55 pm
BIO
-
ORD
13h 05m
1 stop
$572Lufthansa
Mon, Apr 20 - Tue, Apr 28
United Airlines Logo
5:55 pm - 11:25 pm
ORD
-
BIO
22h 30m
1 stop
United Airlines Logo
6:50 am - 12:55 pm
BIO
-
ORD
13h 05m
1 stop
$573United Airlines
Sun, Apr 19 - Thu, Apr 30
Delta Logo
4:20 pm - 11:15 am
ORD
-
BIO
11h 55m
1 stop
Delta Logo
12:00 pm - 2:15 pm
BIO
-
ORD
33h 15m
1 stop
$577Delta
Sun, Apr 19 - Mon, Apr 27
United Airlines Logo
6:01 pm - 11:25 pm
ORD
-
BIO
22h 24m
2 stops
United Airlines Logo
6:50 am - 2:50 pm
BIO
-
ORD
15h 00m
1 stop
$578United Airlines
Sun, Apr 19 - Thu, Apr 30
Delta Logo
8:15 am - 11:15 am
ORD
-
BIO
20h 00m
2 stops
Delta Logo
12:00 pm - 2:15 pm
BIO
-
ORD
33h 15m
1 stop
$581Delta
Sun, Apr 19 - Mon, Apr 27
Multiple Airlines Logo
2:20 pm - 6:45 pm
ORD
-
BIO
21h 25m
2 stops
Multiple Airlines Logo
7:00 am - 7:55 pm
BIO
-
ORD
19h 55m
2 stops
$586Multiple Airlines
Wed, Apr 22 - Wed, Apr 29
Air Canada Logo
12:50 pm - 5:55 pm
ORD
-
BIO
22h 05m
2 stops
Air Canada Logo
7:15 am - 10:03 pm
BIO
-
ORD
21h 48m
2 stops
$587Air Canada
Mon, Apr 20 - Tue, Apr 28
Delta Logo
1:36 pm - 4:30 pm
ORD
-
BIO
19h 54m
2 stops
Delta Logo
6:45 am - 6:52 pm
BIO
-
ORD
19h 07m
2 stops
$591Delta
Sun, Apr 19 - Wed, Apr 29

Lufthansa flights from Chicago O'Hare Intl Airport to Bilbao

Our best Lufthansa deals on Chicago O'Hare Intl Airport to Bilbao flight tickets
Lufthansa
Apr 22
ORD9:40 pmChicago O'Hare Intl
18h 45m
1 stop
BIO11:25 pmBilbao
Apr 29
BIO6:50 amBilbao
13h 05m
1 stop
ORD12:55 pmChicago O'Hare Intl
$564
Lufthansa
Apr 20
ORD9:40 pmChicago O'Hare Intl
13h 15m
1 stop
BIO5:55 pmBilbao
Apr 28
BIO6:50 amBilbao
13h 05m
1 stop
ORD12:55 pmChicago O'Hare Intl
$572
Lufthansa
Mar 23
ORD10:50 pmChicago O'Hare Intl
18h 15m
1 stop
BIO11:05 pmBilbao
Apr 8
BIO6:50 amBilbao
13h 05m
1 stop
ORD12:55 pmChicago O'Hare Intl
$594

Turkish Airlines flights from Chicago O'Hare Intl Airport to Bilbao

Our best Turkish Airlines deals on Chicago O'Hare Intl Airport to Bilbao flight tickets
Turkish Airlines
Feb 17
ORD8:20 pmChicago O'Hare Intl
36h 50m
1 stop
BIO4:10 pmBilbao
Mar 24
BIO12:00 pmBilbao
29h 05m
1 stop
ORD11:05 amChicago O'Hare Intl
$557
Turkish Airlines
Mar 4
ORD11:50 amChicago O'Hare Intl
21h 20m
1 stop
BIO4:10 pmBilbao
Mar 17
BIO12:00 pmBilbao
37h 25m
1 stop
ORD7:25 pmChicago O'Hare Intl
$559
Turkish Airlines
Apr 23
ORD8:10 pmChicago O'Hare Intl
32h 00m
1 stop
BIO11:10 amBilbao
Apr 28
BIO12:10 pmBilbao
28h 30m
1 stop
ORD9:40 amChicago O'Hare Intl
$611

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 February 10, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 3/4

11:50 am-4:10 pm

1 stop21h 20m

Bilbao

Tue 3/17

12:00 pm-7:25 pm

1 stop37h 25m

$559

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 4/22

9:40 pm-11:25 pm

1 stop18h 45m

Bilbao

Wed 4/29

6:50 am-12:55 pm

1 stop13h 05m

$564

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 4/20

9:40 pm-5:55 pm

1 stop13h 15m

Bilbao

Tue 4/28

6:50 am-12:55 pm

1 stop13h 05m

$572

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 4/19

5:55 pm-11:25 pm

1 stop22h 30m

Bilbao

Thu 4/30

6:50 am-12:55 pm

1 stop13h 05m

$573

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 4/19

4:20 pm-11:15 am

1 stop11h 55m

Bilbao

Mon 4/27

12:00 pm-2:15 pm

1 stop33h 15m

$577

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 4/19

6:01 pm-11:25 pm

2 stops22h 24m

Bilbao

Thu 4/30

6:50 am-2:50 pm

1 stop15h 00m

$578

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 4/19

8:15 am-11:15 am

2 stops20h 00m

Bilbao

Mon 4/27

12:00 pm-2:15 pm

1 stop33h 15m

$581

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 4/22

2:20 pm-6:45 pm

2 stops21h 25m

Bilbao

Wed 4/29

7:00 am-7:55 pm

2 stops19h 55m

$586

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 4/20

12:50 pm-5:55 pm

2 stops22h 05m

Bilbao

Tue 4/28

7:15 am-10:03 pm

2 stops21h 48m

$587

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 4/19

1:36 pm-4:30 pm

2 stops19h 54m

Bilbao

Wed 4/29

6:45 am-6:52 pm

2 stops19h 07m

$591

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport is in February. Flight prices, which tend to average around $665, 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 March is your next best option. Flight prices from Chicago O'Hare Intl Airport to Bilbao during March average around $699.

When to book flights from Chicago O'Hare Intl Airport to Bilbao

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Bilbao according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Bilbao (ORD to BIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Bilbao

Fastest flight time

16h 35m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Bilbao takes 16h 35m
There are no direct flights from Chicago O'Hare Intl Airport to Bilbao. There are no popular flight routes from Chicago O'Hare Intl Airport to Bilbao.
Search flight deals

  • How far is Chicago O'Hare Intl to Bilbao by plane?

    There are 4115.9 mi between Chicago O'Hare Intl and Bilbao. Flights usually cover this in 16h 35m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Bilbao Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Bilbao Airport were last updated today.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Bilbao Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Bilbao Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Bilbao Airport.

  • What documentation or ID do you need to fly to Bilbao Airport?

    The required travel and health documents for your Bilbao Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Bilbao Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Chicago O'Hare Intl Airport to Bilbao?

Best airlines flying from Chicago O'Hare Intl Airport to Bilbao

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Bilbao with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $575Free CancellationRating
6.8
7,775 reviews
Search Lufthansa flights
IberiaPriceFrom $656Free CancellationRating
7.0
3,110 reviews
Search Iberia flights
United AirlinesPriceFrom $699Free CancellationRating
7.4
9,262 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. momondo allows you to filter the results for Chicago to Bilbao flights to just show those with flexible booking policies.

How can momondo help me find flights from Chicago to Bilbao?

momondo provides multiple filters to help you find the best flight to Bilbao from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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Of course. momondo tracks the price of Chicago to Bilbao flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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