Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Chicago to Bilbao from $277

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 12/3. 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

Enter your travel dates to find the best prices.
Turkish Airlines Logo
11:25 am - 10:55 amORD-BIO
16h 30m1 stop
Turkish Airlines Logo
11:55 am - 6:15 pmBIO-ORD
37h 20m1 stop
$586Turkish Airlines
Find Deal
Mon, Apr 6 - Tue, Apr 21
United Airlines Logo
7:00 pm - 11:05 pmORD-BIO
22h 05m1 stop
United Airlines Logo
2:10 pm - 2:50 pmBIO-ORD
31h 40m1 stop
$588United Airlines
Find Deal
Mon, Mar 23 - Mon, Mar 30
Multiple Airlines Logo
8:36 am - 12:20 pmORD-BIO
20h 44m2 stops
Multiple Airlines Logo
6:45 am - 2:55 pmBIO-ORD
15h 10m1 stop
$602Multiple Airlines
Find Deal
Wed, Dec 3 - Tue, Feb 3
Lufthansa Logo
9:50 pm - 6:05 pmORD-BIO
13h 15m1 stop
Lufthansa Logo
11:35 am - 6:25 pmBIO-ORD
13h 50m1 stop
$648Lufthansa
Find Deal
Wed, Dec 3 - Tue, Feb 3
Multiple Airlines Logo
2:01 pm - 6:35 pmORD-BIO
21h 34m3 stops
Multiple Airlines Logo
11:25 am - 3:00 pmBIO-ORD
34h 35m2 stops
$649Multiple Airlines
Find Deal
Wed, Dec 3 - Tue, Feb 3
Lufthansa Logo
10:50 pm - 9:55 pmORD-BIO
17h 05m1 stop
Lufthansa Logo
6:45 am - 2:10 pmBIO-ORD
13h 25m1 stop
$665Lufthansa
Find Deal
Wed, Mar 18 - Sun, Mar 22
Delta Logo
1:14 pm - 11:20 amMDW-BIO
15h 06m2 stops
Delta Logo
6:50 am - 6:36 pmBIO-MDW
18h 46m2 stops
$700Delta
Find Deal
Wed, Dec 3 - Tue, Feb 3
Delta Logo
10:35 am - 10:25 amMDW-BIO
16h 50m2 stops
Delta Logo
7:10 am - 6:31 pmBIO-MDW
18h 21m2 stops
$904Delta
Find Deal
Mon, Apr 6 - Tue, Apr 21
KLM Logo
1:00 pm - 10:00 pmMDW-BIO
26h 00m2 stops
KLM Logo
5:15 pm - 6:34 pmBIO-MDW
32h 19m2 stops
$1,009KLM
Find Deal
Fri, Apr 3 - Tue, Apr 7
KLM Logo
6:00 am - 10:25 amMDW-BIO
21h 25m2 stops
KLM Logo
12:00 pm - 6:34 pmBIO-MDW
37h 34m2 stops
$1,038KLM
Find Deal
Fri, Apr 3 - Tue, Apr 7

TAP AIR PORTUGAL flights from Chicago to Bilbao

Our best TAP AIR PORTUGAL deals on Chicago to Bilbao flight tickets
TAP AIR PORTUGAL
Nov 30
ORD8:25 pmChicago O'Hare Intl
15h 10m
1 stop
BIO6:35 pmBilbao
Dec 13
BIO12:10 pmBilbao
33h 35m
1 stop
ORD2:45 pmChicago O'Hare Intl
$445
Find similar
TAP AIR PORTUGAL
Jan 7
ORD7:10 pmChicago O'Hare Intl
39h 45m
1 stop
BIO5:55 pmBilbao
May 15
BIO12:15 pmBilbao
35h 00m
1 stop
ORD4:15 pmChicago O'Hare Intl
$669
Find similar
TAP AIR PORTUGAL
Apr 6
ORD11:30 amChicago O'Hare Intl
23h 30m
2 stops
BIO6:00 pmBilbao
Apr 21
BIO6:50 pmBilbao
28h 10m
1 stop
ORD4:00 pmChicago O'Hare Intl
$784
Find similar

Turkish Airlines flights from Chicago to Bilbao

Our best Turkish Airlines deals on Chicago to Bilbao flight tickets
Turkish Airlines
Apr 6
ORD7:50 pmChicago O'Hare Intl
38h 30m
1 stop
BIO5:20 pmBilbao
Apr 21
BIO11:55 amBilbao
37h 20m
1 stop
ORD6:15 pmChicago O'Hare Intl
$566
Find similar
Turkish Airlines
Apr 6
ORD11:25 amChicago O'Hare Intl
16h 30m
1 stop
BIO10:55 amBilbao
Apr 21
BIO11:55 amBilbao
37h 20m
1 stop
ORD6:15 pmChicago O'Hare Intl
$586
Find similar
Turkish Airlines
Mar 18
ORD12:50 pmChicago O'Hare Intl
21h 20m
1 stop
BIO4:10 pmBilbao
Mar 22
BIO5:10 pmBilbao
32h 15m
1 stop
ORD7:25 pmChicago O'Hare Intl
$624
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 November 13, 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

Mon 4/6

11:25 am-10:55 am

1 stop16h 30m

Bilbao

Tue 4/21

11:55 am-6:15 pm

1 stop37h 20m

$586

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 3/23

7:00 pm-11:05 pm

1 stop22h 05m

Bilbao

Mon 3/30

2:10 pm-2:50 pm

1 stop31h 40m

$588

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 12/3

8:36 am-12:20 pm

2 stops20h 44m

Bilbao

Tue 2/3

6:45 am-2:55 pm

1 stop15h 10m

$602

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 12/3

9:50 pm-6:05 pm

1 stop13h 15m

Bilbao

Tue 2/3

11:35 am-6:25 pm

1 stop13h 50m

$648

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 12/3

2:01 pm-6:35 pm

3 stops21h 34m

Bilbao

Tue 2/3

11:25 am-3:00 pm

2 stops34h 35m

$649

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Wed 3/18

10:50 pm-9:55 pm

1 stop17h 05m

Bilbao

Sun 3/22

6:45 am-2:10 pm

1 stop13h 25m

$665

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Wed 12/3

1:14 pm-11:20 am

2 stops15h 06m

Bilbao

Tue 2/3

6:50 am-6:36 pm

2 stops18h 46m

$700

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Mon 4/6

10:35 am-10:25 am

2 stops16h 50m

Bilbao

Tue 4/21

7:10 am-6:31 pm

2 stops18h 21m

$904

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Fri 4/3

1:00 pm-10:00 pm

2 stops26h 00m

Bilbao

Tue 4/7

5:15 pm-6:34 pm

2 stops32h 19m

$1,009

ChicagoBilbao

MDW - BIO

MDWBIO

Chicago Midway

Fri 4/3

6:00 am-10:25 am

2 stops21h 25m

Bilbao

Tue 4/7

12:00 pm-6:34 pm

2 stops37h 34m

$1,038

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 10m.

  • 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
IberiaPriceFrom $612Free CancellationRating
7.0
3,010 reviews
Search Iberia flights
United AirlinesPriceFrom $639Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
LufthansaPriceFrom $698Free CancellationRating
6.8
7,570 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
Sat 12/13
Sat 12/20
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