Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Chicago to Bilbao from $505

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Bilbao departing on 10/18. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Chicago to Bilbao

Cheap round-trip flights

Scandinavian Airlines Logo
7:15 pm - 10:00 amORD-BIO
31h 45m1 stop
Scandinavian Airlines Logo
8:30 pm - 5:45 pmBIO-ORD
27h 15m1 stop
$505Scandinavian Airlines
Find Deal
Sat, Oct 18 - Fri, Oct 31
Turkish Airlines Logo
11:45 pm - 11:05 amORD-BIO
28h 20m1 stop
Turkish Airlines Logo
12:05 pm - 9:40 amBIO-ORD
28h 35m1 stop
$566Turkish Airlines
Find Deal
Wed, Oct 8 - Tue, Oct 14
Logo
3:50 pm - 1:25 pmORD-BIO
38h 35m2 stops
Logo
12:50 pm - 9:05 pmBIO-ORD
14h 15m1 stop
$580
Find Deal
Sat, Oct 18 - Fri, Oct 31
Air Canada Logo
3:35 pm - 6:25 pmORD-BIO
43h 50m2 stops
Air Canada Logo
7:25 am - 1:01 pmBIO-ORD
35h 36m2 stops
$583Air Canada
Find Deal
Sat, Oct 18 - Fri, Oct 31
Logo
6:00 pm - 7:30 pmORD-BIO
18h 30m2 stops
Logo
6:50 pm - 4:10 pmBIO-ORD
28h 20m1 stop
$602
Find Deal
Thu, Oct 9 - Tue, Oct 14
Air Canada Logo
6:00 pm - 5:50 pmORD-BIO
16h 50m2 stops
Air Canada Logo
6:45 am - 8:22 pmBIO-ORD
20h 37m2 stops
$611Air Canada
Find Deal
Wed, Oct 8 - Tue, Oct 14
Lufthansa Logo
9:40 pm - 11:25 pmORD-BIO
18h 45m1 stop
Lufthansa Logo
7:05 pm - 12:55 pmBIO-ORD
24h 50m1 stop
$641Lufthansa
Find Deal
Sun, Oct 12 - Sun, Oct 19
Lufthansa Logo
9:08 pm - 12:00 pmORD-BIO
32h 52m2 stops
Lufthansa Logo
5:35 pm - 1:10 pmBIO-ORD
26h 35m1 stop
$643Lufthansa
Find Deal
Sat, Nov 1 - Mon, Nov 10
United Airlines Logo
2:08 pm - 6:25 pmORD-BIO
21h 17m2 stops
United Airlines Logo
6:45 am - 11:15 pmBIO-ORD
23h 30m2 stops
$655United Airlines
Find Deal
Sun, Oct 12 - Sun, Oct 19
United Airlines Logo
10:30 pm - 10:25 pmORD-BIO
16h 55m1 stop
United Airlines Logo
6:45 am - 2:55 pmBIO-ORD
15h 10m1 stop
$705United Airlines
Find Deal
Wed, Sep 24 - Wed, Oct 1

Delta flights from Chicago to Bilbao

Our best Delta deals on Chicago to Bilbao flight tickets
Delta
Nov 12
MDW12:47 pmChicago Midway
15h 43m
2 stops
BIO11:30 amBilbao
Nov 16
BIO6:50 amBilbao
18h 18m
2 stops
MDW6:08 pmChicago Midway
$694
Find similar
Delta
Oct 18
MDW6:23 pmChicago Midway
15h 07m
2 stops
BIO4:30 pmBilbao
Oct 31
BIO6:50 amBilbao
17h 05m
2 stops
MDW5:55 pmChicago Midway
$710
Find similar
Delta
Sep 24
ORD10:15 amChicago O'Hare Intl
17h 10m
2 stops
BIO10:25 amBilbao
Oct 1
BIO7:10 amBilbao
21h 30m
2 stops
ORD9:40 pmChicago O'Hare Intl
$730
Find similar

Lufthansa flights from Chicago to Bilbao

Our best Lufthansa deals on Chicago to Bilbao flight tickets
Lufthansa
Oct 12
ORD9:40 pmChicago O'Hare Intl
18h 45m
1 stop
BIO11:25 pmBilbao
Oct 19
BIO7:05 pmBilbao
24h 50m
1 stop
ORD12:55 pmChicago O'Hare Intl
$641
Find similar
Lufthansa
Nov 1
ORD9:08 pmChicago O'Hare Intl
32h 52m
2 stops
BIO12:00 pmBilbao
Nov 10
BIO5:35 pmBilbao
26h 35m
1 stop
ORD1:10 pmChicago O'Hare Intl
$643
Find similar
Lufthansa
Sep 24
ORD10:30 pmChicago O'Hare Intl
12h 50m
1 stop
BIO6:20 pmBilbao
Oct 1
BIO2:10 pmBilbao
27h 50m
1 stop
ORD11:00 amChicago O'Hare Intl
$649
Find similar

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 August 28, 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

Sat 10/18

7:15 pm-10:00 am

1 stop31h 45m

Bilbao

Fri 10/31

8:30 pm-5:45 pm

1 stop27h 15m

$505

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 10/8

11:45 pm-11:05 am

1 stop28h 20m

Bilbao

Tue 10/14

12:05 pm-9:40 am

1 stop28h 35m

$566

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 10/18

3:50 pm-1:25 pm

2 stops38h 35m

Bilbao

Fri 10/31

12:50 pm-9:05 pm

1 stop14h 15m

$580

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 10/18

3:35 pm-6:25 pm

2 stops43h 50m

Bilbao

Fri 10/31

7:25 am-1:01 pm

2 stops35h 36m

$583

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Thu 10/9

6:00 pm-7:30 pm

2 stops18h 30m

Bilbao

Tue 10/14

6:50 pm-4:10 pm

1 stop28h 20m

$602

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 10/8

6:00 pm-5:50 pm

2 stops16h 50m

Bilbao

Tue 10/14

6:45 am-8:22 pm

2 stops20h 37m

$611

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 10/12

9:40 pm-11:25 pm

1 stop18h 45m

Bilbao

Sun 10/19

7:05 pm-12:55 pm

1 stop24h 50m

$641

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sat 11/1

9:08 pm-12:00 pm

2 stops32h 52m

Bilbao

Mon 11/10

5:35 pm-1:10 pm

1 stop26h 35m

$643

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 10/12

2:08 pm-6:25 pm

2 stops21h 17m

Bilbao

Sun 10/19

6:45 am-11:15 pm

2 stops23h 30m

$655

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 9/24

10:30 pm-10:25 pm

1 stop16h 55m

Bilbao

Wed 10/1

6:45 am-2:55 pm

1 stop15h 10m

$705

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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.
Search flight deals

  • 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 42m.

  • 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
8,944 reviews
Search United Airlines flights
IberiaPriceFrom $640Free CancellationRating
7.0
2,892 reviews
Search Iberia flights
LufthansaPriceFrom $646Free CancellationRating
6.8
7,368 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.

An easier way to manage your Bilbao trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 9/2
Tue 9/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Spain

Airports servicing Basque Country

San Sebastián Airport