Cheap flights from Chicago to Bilbao from $258

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 9/22. 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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Cheap round-trip flights

United Airlines Logo
9:50 pm - 11:05 pmORD-BIO
18h 15m1 stop
United Airlines Logo
11:35 am - 6:25 pmBIO-ORD
13h 50m1 stop
$456United Airlines
Find Deal
Sun, Nov 2 - Tue, Nov 18
Multiple Airlines Logo
9:50 pm - 6:05 pmORD-BIO
13h 15m1 stop
Multiple Airlines Logo
7:25 am - 5:48 pmBIO-ORD
17h 23m2 stops
$465Multiple Airlines
Find Deal
Sun, Nov 2 - Tue, Nov 18
Lufthansa Logo
3:35 pm - 5:50 pmORD-BIO
19h 15m1 stop
Lufthansa Logo
7:25 am - 7:25 pmBIO-ORD
18h 00m1 stop
$481Lufthansa
Find Deal
Mon, Oct 20 - Fri, Oct 31
Iberia Logo
4:45 pm - 12:50 pmORD-BIO
13h 05m1 stop
Iberia Logo
6:45 am - 3:30 pmBIO-ORD
14h 45m1 stop
$520Iberia
Find Deal
Thu, Mar 5 - Thu, Mar 12
Iberia Logo
11:45 am - 8:30 amORD-BIO
13h 45m2 stops
Iberia Logo
9:15 am - 3:30 pmBIO-ORD
12h 15m1 stop
$524Iberia
Find Deal
Thu, Mar 5 - Thu, Mar 12
Air Canada Logo
10:40 am - 5:50 pmORD-BIO
24h 10m2 stops
Air Canada Logo
6:45 am - 2:48 pmBIO-ORD
15h 03m2 stops
$539Air Canada
Find Deal
Thu, Oct 16 - Thu, Oct 23
Lufthansa Logo
9:08 pm - 12:00 pmORD-BIO
32h 52m2 stops
Lufthansa Logo
6:50 pm - 6:25 pmBIO-ORD
30h 35m1 stop
$547Lufthansa
Find Deal
Sat, Nov 1 - Mon, Nov 10
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
$634Turkish Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 10
Air Canada Logo
2:00 pm - 12:05 pmORD-BIO
15h 05m2 stops
Air Canada Logo
12:45 pm - 3:10 pmBIO-ORD
57h 25m2 stops
$651Air Canada
Find Deal
Mon, Nov 24 - Sun, Nov 30
Turkish Airlines Logo
9:20 pm - 11:00 amORD-BIO
31h 40m1 stop
Turkish Airlines Logo
12:00 pm - 6:25 pmBIO-ORD
37h 25m1 stop
$653Turkish Airlines
Find Deal
Sat, Nov 1 - Mon, Nov 10

Scandinavian Airlines flights from Chicago to Bilbao

Our best Scandinavian Airlines deals on Chicago to Bilbao flight tickets
Scandinavian Airlines
Dec 11
ORD7:10 amChicago O'Hare Intl
28h 30m
2 stops
BIO6:40 pmBilbao
Jan 2
BIO7:30 pmBilbao
28h 15m
1 stop
ORD4:45 pmChicago O'Hare Intl
Scandinavian Airlines
Dec 14
ORD7:10 amChicago O'Hare Intl
28h 30m
2 stops
BIO6:40 pmBilbao
Jan 2
BIO7:30 pmBilbao
28h 15m
1 stop
ORD4:45 pmChicago O'Hare Intl
Scandinavian Airlines
Dec 14
ORD7:20 pmChicago O'Hare Intl
16h 20m
1 stop
BIO6:40 pmBilbao
Jan 2
BIO7:30 pmBilbao
28h 15m
1 stop
ORD4:45 pmChicago O'Hare Intl

Turkish Airlines flights from Chicago to Bilbao

Our best Turkish Airlines deals on Chicago to Bilbao flight tickets
Turkish Airlines
Nov 1
ORD9:20 pmChicago O'Hare Intl
31h 40m
1 stop
BIO11:00 amBilbao
Nov 10
BIO12:00 pmBilbao
29h 05m
1 stop
ORD10:05 amChicago O'Hare Intl
Turkish Airlines
Nov 1
ORD9:20 pmChicago O'Hare Intl
31h 40m
1 stop
BIO11:00 amBilbao
Nov 10
BIO12:00 pmBilbao
37h 25m
1 stop
ORD6:25 pmChicago O'Hare Intl
Turkish Airlines
Nov 20
ORD11:50 amChicago O'Hare Intl
16h 10m
1 stop
BIO11:00 amBilbao
Nov 30
BIO5:10 pmBilbao
23h 55m
1 stop
ORD10:05 amChicago O'Hare Intl

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 September 17, 2025.
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

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 11/2

9:50 pm-11:05 pm

1 stop18h 15m

Bilbao

Tue 11/18

11:35 am-6:25 pm

1 stop13h 50m

$456

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 11/2

9:50 pm-6:05 pm

1 stop13h 15m

Bilbao

Tue 11/18

7:25 am-5:48 pm

2 stops17h 23m

$465

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 10/20

3:35 pm-5:50 pm

1 stop19h 15m

Bilbao

Fri 10/31

7:25 am-7:25 pm

1 stop18h 00m

$481

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 3/5

4:45 pm-12:50 pm

1 stop13h 05m

Bilbao

Thu 3/12

6:45 am-3:30 pm

1 stop14h 45m

$520

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 3/5

11:45 am-8:30 am

2 stops13h 45m

Bilbao

Thu 3/12

9:15 am-3:30 pm

1 stop12h 15m

$524

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 10/16

10:40 am-5:50 pm

2 stops24h 10m

Bilbao

Thu 10/23

6:45 am-2:48 pm

2 stops15h 03m

$539

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 11/1

9:08 pm-12:00 pm

2 stops32h 52m

Bilbao

Mon 11/10

6:50 pm-6:25 pm

1 stop30h 35m

$547

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

$634

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 11/24

2:00 pm-12:05 pm

2 stops15h 05m

Bilbao

Sun 11/30

12:45 pm-3:10 pm

2 stops57h 25m

$651

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-6:25 pm

1 stop37h 25m

$653

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 day to depart on your flight to Bilbao?

The cheapest day to depart from Chicago 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 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 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

Direct flights

None
There are no direct flights from Chicago to Bilbao. There are no popular flight routes 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 11h 30m.

  • 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
United AirlinesPriceFrom $639Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
IberiaPriceFrom $640Free CancellationRating
7.0
2,925 reviews
Search Iberia flights
LufthansaPriceFrom $646Free CancellationRating
6.8
7,409 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. 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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Fri 10/17
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