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Cheap flights from Chicago O'Hare Intl Airport to Bilbao from $409

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 7/12. 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
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
$707Turkish 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
$711Turkish 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
$724Turkish Airlines
Mon, Sep 14 - Thu, Sep 24
Multiple Airlines Logo
1:54 pm - 11:15 pm
ORD
-
BIO
26h 21m
2 stops
Multiple Airlines Logo
6:45 am - 4:00 pm
BIO
-
ORD
16h 15m
1 stop
$741Multiple Airlines
Tue, Aug 18 - Tue, Oct 6
Multiple Airlines Logo
10:15 pm - 11:15 pm
ORD
-
BIO
18h 00m
1 stop
Multiple Airlines Logo
9:35 pm - 4:00 pm
BIO
-
ORD
25h 25m
1 stop
$747Multiple Airlines
Wed, Sep 23 - Mon, Sep 28
Multiple Airlines Logo
2:55 pm - 11:15 pm
ORD
-
BIO
25h 20m
2 stops
Multiple Airlines Logo
9:35 pm - 4:00 pm
BIO
-
ORD
25h 25m
1 stop
$752Multiple Airlines
Wed, Sep 23 - Mon, Sep 28
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
$754Turkish Airlines
Tue, Sep 15 - Thu, Sep 24
Multiple Airlines Logo
9:00 pm - 5:25 pm
ORD
-
BIO
13h 25m
1 stop
Multiple Airlines Logo
9:15 am - 7:45 pm
BIO
-
ORD
17h 30m
2 stops
$763Multiple Airlines
Mon, Sep 14 - Thu, Sep 24
Multiple Airlines Logo
10:15 pm - 11:15 pm
ORD
-
BIO
18h 00m
1 stop
Multiple Airlines Logo
6:45 am - 2:25 pm
BIO
-
ORD
14h 40m
1 stop
$766Multiple Airlines
Mon, Sep 14 - Thu, Sep 24
Multiple Airlines Logo
4:45 pm - 11:15 pm
ORD
-
BIO
23h 30m
2 stops
Multiple Airlines Logo
6:45 am - 2:25 pm
BIO
-
ORD
14h 40m
1 stop
$771Multiple Airlines
Tue, Sep 15 - Thu, Sep 24

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

Our best United Airlines deals on Chicago O'Hare Intl Airport to Bilbao flight tickets
United Airlines
Sep 28
ORD6:00 pmChicago O'Hare Intl
15h 00m
1 stop
BIO4:00 pmBilbao
Oct 9
BIO6:45 amBilbao
31h 40m
2 stops
ORD7:25 amChicago O'Hare Intl
$805
United Airlines
Sep 1
ORD6:00 pmChicago O'Hare Intl
15h 00m
1 stop
BIO4:00 pmBilbao
Oct 15
BIO6:50 amBilbao
13h 05m
1 stop
ORD12:55 pmChicago O'Hare Intl
$819
United Airlines
Aug 4
ORD6:00 pmChicago O'Hare Intl
15h 00m
1 stop
BIO4:00 pmBilbao
Aug 20
BIO6:50 amBilbao
20h 05m
1 stop
ORD7:55 pmChicago O'Hare Intl
$820

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
Sep 14
ORD8:10 pmChicago O'Hare Intl
38h 10m
1 stop
BIO5:20 pmBilbao
Sep 24
BIO6:20 pmBilbao
22h 20m
1 stop
ORD9:40 amChicago O'Hare Intl
$707
Turkish Airlines
Sep 15
ORD8:10 pmChicago O'Hare Intl
38h 10m
1 stop
BIO5:20 pmBilbao
Sep 24
BIO6:20 pmBilbao
22h 20m
1 stop
ORD9:40 amChicago O'Hare Intl
$711
Turkish Airlines
Sep 14
ORD8:10 pmChicago O'Hare Intl
38h 10m
1 stop
BIO5:20 pmBilbao
Sep 24
BIO6:20 pmBilbao
22h 20m
1 stop
ORD9:40 amChicago O'Hare Intl
$724

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 May 21, 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

Cheapest round-trip

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

$707

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

$711

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

$724

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 8/18

1:54 pm-11:15 pm

2 stops26h 21m

Bilbao

Tue 10/6

6:45 am-4:00 pm

1 stop16h 15m

$741

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 9/23

10:15 pm-11:15 pm

1 stop18h 00m

Bilbao

Mon 9/28

9:35 pm-4:00 pm

1 stop25h 25m

$747

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 9/23

2:55 pm-11:15 pm

2 stops25h 20m

Bilbao

Mon 9/28

9:35 pm-4:00 pm

1 stop25h 25m

$752

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

$754
Quickest round-trip

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 9/14

9:00 pm-5:25 pm

1 stop13h 25m

Bilbao

Thu 9/24

9:15 am-7:45 pm

2 stops17h 30m

$763

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 9/14

10:15 pm-11:15 pm

1 stop18h 00m

Bilbao

Thu 9/24

6:45 am-2:25 pm

1 stop14h 40m

$766

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 9/15

4:45 pm-11:15 pm

2 stops23h 30m

Bilbao

Thu 9/24

6:45 am-2:25 pm

1 stop14h 40m

$771

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 typical price of a round-trip flight between Chicago O'Hare Intl Airport and Bilbao?

What is the cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from Chicago O'Hare Intl Airport is in March. Flight prices, which tend to average around $610, 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 February is your next best option. Flight prices from Chicago O'Hare Intl Airport to Bilbao during February average around $612.

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

13h 15m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Bilbao takes 13h 15m
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

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Bilbao

  • 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 13h 15m, 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 $584Free CancellationRating
6.8
8,018 reviews
Search Lufthansa flights
United AirlinesPriceFrom $699Free CancellationRating
7.4
9,752 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.

I’m not ready to book a flight from Chicago to Bilbao right now. Can momondo alert me if prices change?

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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