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Cheap flights from Chicago O'Hare Intl Airport to Bilbao from $230

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 11/26. 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

Logo
4:30 pm - 9:45 pmORD-BIO
22h 15m2 stops
Logo
10:20 pm - 2:15 pmBIO-ORD
22h 55m2 stops
$593
Find Deal
Tue, Sep 16 - Wed, Sep 24
Logo
4:30 pm - 5:10 pmORD-BIO
17h 40m2 stops
Logo
10:20 pm - 2:15 pmBIO-ORD
22h 55m2 stops
$595
Find Deal
Mon, Sep 15 - Mon, Sep 22
Logo
4:30 pm - 9:45 pmORD-BIO
22h 15m2 stops
Logo
5:50 pm - 2:15 pmBIO-ORD
27h 25m2 stops
$596
Find Deal
Tue, Sep 16 - Tue, Sep 23
Turkish Airlines Logo
9:20 pm - 11:00 amORD-BIO
31h 40m1 stop
Turkish Airlines Logo
12:00 pm - 10:05 amBIO-ORD
29h 05m1 stop
$602Turkish Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 10
Turkish Airlines Logo
11:45 pm - 5:25 pmORD-BIO
34h 40m1 stop
Turkish Airlines Logo
12:05 pm - 9:40 amBIO-ORD
28h 35m1 stop
$613Turkish Airlines
Find Deal
Mon, Sep 15 - Mon, Sep 22
Lufthansa Logo
9:08 pm - 12:05 pmORD-BIO
32h 57m2 stops
Lufthansa Logo
5:30 pm - 11:10 amBIO-ORD
24h 40m1 stop
$646Lufthansa
Find Deal
Sat, Nov 1 - Mon, Nov 10
Lufthansa Logo
3:35 pm - 11:05 amORD-BIO
12h 30m1 stop
Lufthansa Logo
2:10 pm - 7:55 pmBIO-ORD
12h 45m1 stop
$648Lufthansa
Find Deal
Tue, Sep 16 - Wed, Sep 24
Iberia Logo
4:45 pm - 12:50 pmORD-BIO
13h 05m1 stop
Iberia Logo
9:15 am - 7:45 pmBIO-ORD
17h 30m2 stops
$649Iberia
Find Deal
Wed, Dec 3 - Sun, Dec 7
Iberia Logo
4:45 pm - 12:50 pmORD-BIO
13h 05m1 stop
Iberia Logo
9:15 am - 7:45 pmBIO-ORD
17h 30m2 stops
$650Iberia
Find Deal
Wed, Dec 3 - Sun, Dec 7
United Airlines Logo
10:30 pm - 6:20 pmORD-BIO
12h 50m1 stop
United Airlines Logo
6:45 am - 6:30 amBIO-ORD
30h 45m2 stops
$709United Airlines
Find Deal
Wed, Sep 24 - Sun, Sep 28

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
Nov 1
ORD9:08 pmChicago O'Hare Intl
32h 57m
2 stops
BIO12:05 pmBilbao
Nov 10
BIO5:30 pmBilbao
24h 40m
1 stop
ORD11:10 amChicago O'Hare Intl
$646
Find similar
Lufthansa
Sep 16
ORD3:35 pmChicago O'Hare Intl
12h 30m
1 stop
BIO11:05 amBilbao
Sep 24
BIO2:10 pmBilbao
12h 45m
1 stop
ORD7:55 pmChicago O'Hare Intl
$648
Find similar

Iberia flights from Chicago O'Hare Intl Airport to Bilbao

Our best Iberia deals on Chicago O'Hare Intl Airport to Bilbao flight tickets
Iberia
Dec 3
ORD4:45 pmChicago O'Hare Intl
13h 05m
1 stop
BIO12:50 pmBilbao
Dec 7
BIO9:15 amBilbao
17h 30m
2 stops
ORD7:45 pmChicago O'Hare Intl
$649
Find similar
Iberia
Dec 3
ORD4:45 pmChicago O'Hare Intl
13h 05m
1 stop
BIO12:50 pmBilbao
Dec 7
BIO9:15 amBilbao
17h 30m
2 stops
ORD7:45 pmChicago O'Hare Intl
$650
Find similar
Iberia
Dec 3
ORD4:21 pmChicago O'Hare Intl
13h 29m
2 stops
BIO12:50 pmBilbao
Dec 7
BIO9:15 amBilbao
17h 30m
2 stops
ORD7:45 pmChicago O'Hare Intl
$654
Find similar

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 August 1, 2025.
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

Tue 9/16

4:30 pm-9:45 pm

2 stops22h 15m

Bilbao

Wed 9/24

10:20 pm-2:15 pm

2 stops22h 55m

$593

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 9/15

4:30 pm-5:10 pm

2 stops17h 40m

Bilbao

Mon 9/22

10:20 pm-2:15 pm

2 stops22h 55m

$595

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 9/16

4:30 pm-9:45 pm

2 stops22h 15m

Bilbao

Tue 9/23

5:50 pm-2:15 pm

2 stops27h 25m

$596

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 11/1

9:20 pm-11:00 am

1 stop31h 40m

Bilbao

Mon 11/10

12:00 pm-10:05 am

1 stop29h 05m

$602

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 9/15

11:45 pm-5:25 pm

1 stop34h 40m

Bilbao

Mon 9/22

12:05 pm-9:40 am

1 stop28h 35m

$613

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 11/1

9:08 pm-12:05 pm

2 stops32h 57m

Bilbao

Mon 11/10

5:30 pm-11:10 am

1 stop24h 40m

$646

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Tue 9/16

3:35 pm-11:05 am

1 stop12h 30m

Bilbao

Wed 9/24

2:10 pm-7:55 pm

1 stop12h 45m

$648

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 12/3

4:45 pm-12:50 pm

1 stop13h 05m

Bilbao

Sun 12/7

9:15 am-7:45 pm

2 stops17h 30m

$649

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 12/3

4:45 pm-12:50 pm

1 stop13h 05m

Bilbao

Sun 12/7

9:15 am-7:45 pm

2 stops17h 30m

$650

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 9/24

10:30 pm-6:20 pm

1 stop12h 50m

Bilbao

Sun 9/28

6:45 am-6:30 am

2 stops30h 45m

$709

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 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 $678, 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 April is your next best option. Flight prices from Chicago O'Hare Intl Airport to Bilbao during April average around $739.

What is the cheapest day to depart on your flight to Bilbao?

The cheapest day to depart from Chicago O'Hare Intl Airport to Bilbao is on a Monday. Travelers who choose to depart for Bilbao on a Monday will often find tickets for as low as $930. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,171. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bilbao.

What is the cheapest time of day to depart on your flight to Bilbao?

Our most recent data shows that the best time of day to fly to Bilbao is in the morning. Flights from Chicago O'Hare Intl Airport to Bilbao during this time can be as low as $652. In the evening is when there is more demand to fly to Bilbao, so prices are often more expensive at around $1,100 per ticket.

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

Best Price Found

$230

Fastest flight time

12h 30m

Direct flights

None

Airports in Bilbao

1 airport
The best one-way flight to Bilbao from Chicago O'Hare Intl Airport in the past 72 hours is $230. The best round-trip flight deal from Chicago O'Hare Intl Airport to Bilbao found on momondo in the last 72 hours is $593.
The fastest flight from Chicago O'Hare Intl Airport to Bilbao takes 12h 30m
There are no direct flights from Chicago O'Hare Intl Airport to Bilbao. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Bilbao Airport.
There is 1 airport near Bilbao: Bilbao (BIO)
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  • 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 12h 30m, 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
United AirlinesPriceFrom $639Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
IberiaPriceFrom $640Free CancellationRating
7.0
2,859 reviews
Search Iberia flights
LufthansaPriceFrom $646Free CancellationRating
6.8
7,275 reviews
Search Lufthansa 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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