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Cheap flights from Chicago O'Hare Intl Airport to Bilbao from $380

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 4/7. 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

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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 - 11:10 am
ORD
-
BIO
32h 00m
1 stop
Turkish Airlines Logo
12:10 pm - 9:40 am
BIO
-
ORD
28h 30m
1 stop
$563Turkish Airlines
Sun, Apr 5 - Tue, Apr 21
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
$601Turkish Airlines
Mon, Apr 20 - Mon, Apr 27
Turkish Airlines Logo
11:25 am - 11:10 am
ORD
-
BIO
16h 45m
1 stop
Turkish Airlines Logo
6:20 pm - 9:40 am
BIO
-
ORD
22h 20m
1 stop
$621Turkish Airlines
Sun, Apr 19 - Sun, Apr 26
Turkish Airlines Logo
11:25 am - 11:10 am
ORD
-
BIO
16h 45m
1 stop
Turkish Airlines Logo
12:10 pm - 9:40 am
BIO
-
ORD
28h 30m
1 stop
$705Turkish Airlines
Mon, May 4 - Mon, May 11
TAP AIR PORTUGAL Logo
6:05 pm - 6:05 pm
ORD
-
BIO
17h 00m
1 stop
TAP AIR PORTUGAL Logo
12:15 pm - 4:05 pm
BIO
-
ORD
34h 50m
1 stop
$706TAP AIR PORTUGAL
Sat, May 9 - Fri, May 15
Multiple Airlines Logo
12:47 pm - 8:15 am
ORD
-
BIO
36h 28m
2 stops
Multiple Airlines Logo
6:45 am - 2:25 pm
BIO
-
ORD
14h 40m
1 stop
$707Multiple Airlines
Mon, May 4 - Mon, May 11
Multiple Airlines Logo
11:25 am - 11:10 am
ORD
-
BIO
16h 45m
1 stop
Multiple Airlines Logo
3:30 pm - 9:40 am
BIO
-
ORD
25h 10m
2 stops
$719Multiple Airlines
Mon, Apr 20 - Mon, Apr 27
Multiple Airlines Logo
11:25 am - 11:10 am
ORD
-
BIO
16h 45m
1 stop
Multiple Airlines Logo
12:45 pm - 9:40 am
BIO
-
ORD
27h 55m
2 stops
$736Multiple Airlines
Sun, Apr 5 - Tue, Apr 21
Multiple Airlines Logo
11:25 am - 11:10 pm
ORD
-
BIO
28h 45m
2 stops
Multiple Airlines Logo
6:45 am - 9:40 am
BIO
-
ORD
33h 55m
2 stops
$742Multiple Airlines
Mon, Apr 20 - Mon, Apr 27
Turkish Airlines Logo
11:25 am - 5:20 pm
ORD
-
BIO
22h 55m
1 stop
Turkish Airlines Logo
12:10 pm - 9:40 am
BIO
-
ORD
28h 30m
1 stop
$755Turkish Airlines
Sat, Apr 4 - Fri, Apr 10

TAP AIR PORTUGAL flights from Chicago O'Hare Intl Airport to Bilbao

Our best TAP AIR PORTUGAL deals on Chicago O'Hare Intl Airport to Bilbao flight tickets
TAP AIR PORTUGAL
May 9
ORD6:05 pmChicago O'Hare Intl
17h 00m
1 stop
BIO6:05 pmBilbao
May 15
BIO12:15 pmBilbao
34h 50m
1 stop
ORD4:05 pmChicago O'Hare Intl
$706
TAP AIR PORTUGAL
May 9
ORD6:05 pmChicago O'Hare Intl
17h 00m
1 stop
BIO6:05 pmBilbao
May 14
BIO12:15 pmBilbao
34h 45m
1 stop
ORD4:00 pmChicago O'Hare Intl
$786

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 19
ORD9:40 pmChicago O'Hare Intl
18h 45m
1 stop
BIO11:25 pmBilbao
Apr 26
BIO7:40 amBilbao
19h 15m
2 stops
ORD7:55 pmChicago O'Hare Intl
$766
Lufthansa
May 10
ORD10:30 pmChicago O'Hare Intl
17h 55m
1 stop
BIO11:25 pmBilbao
May 16
BIO2:00 pmBilbao
29h 55m
1 stop
ORD12:55 pmChicago O'Hare Intl
$815
Lufthansa
May 10
ORD10:30 pmChicago O'Hare Intl
17h 55m
2 stops
BIO11:25 pmBilbao
May 16
BIO6:40 pmBilbao
25h 15m
2 stops
ORD12:55 pmChicago O'Hare Intl
$844

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 March 24, 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

Sun 4/5

8:10 pm-11:10 am

1 stop32h 00m

Bilbao

Tue 4/21

12:10 pm-9:40 am

1 stop28h 30m

$563

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 4/20

8:10 pm-5:20 pm

1 stop38h 10m

Bilbao

Mon 4/27

12:10 pm-9:40 am

1 stop28h 30m

$601
Quickest round-trip

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 4/19

11:25 am-11:10 am

1 stop16h 45m

Bilbao

Sun 4/26

6:20 pm-9:40 am

1 stop22h 20m

$621

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 5/4

11:25 am-11:10 am

1 stop16h 45m

Bilbao

Mon 5/11

12:10 pm-9:40 am

1 stop28h 30m

$705

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 5/9

6:05 pm-6:05 pm

1 stop17h 00m

Bilbao

Fri 5/15

12:15 pm-4:05 pm

1 stop34h 50m

$706

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 5/4

12:47 pm-8:15 am

2 stops36h 28m

Bilbao

Mon 5/11

6:45 am-2:25 pm

1 stop14h 40m

$707

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 4/20

11:25 am-11:10 am

1 stop16h 45m

Bilbao

Mon 4/27

3:30 pm-9:40 am

2 stops25h 10m

$719

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 4/5

11:25 am-11:10 am

1 stop16h 45m

Bilbao

Tue 4/21

12:45 pm-9:40 am

2 stops27h 55m

$736

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 4/20

11:25 am-11:10 pm

2 stops28h 45m

Bilbao

Mon 4/27

6:45 am-9:40 am

2 stops33h 55m

$742

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 4/4

11:25 am-5:20 pm

1 stop22h 55m

Bilbao

Fri 4/10

12:10 pm-9:40 am

1 stop28h 30m

$755

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 $612, 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 $686.

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

12h 50m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Bilbao takes 12h 50m
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 12h 50m, 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
7,867 reviews
Search Lufthansa flights
IberiaPriceFrom $612Free CancellationRating
7.0
3,153 reviews
Search Iberia flights
United AirlinesPriceFrom $699Free CancellationRating
7.4
9,477 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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