Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Illinois to Bilbao from $273

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois 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 Illinois to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:50 pm - 11:05 pmORD-BIO
18h 15m1 stop
United Airlines Logo
12:50 pm - 8:05 pmBIO-ORD
14h 15m1 stop
$621United Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 24
Delta Logo
4:25 pm - 4:30 pmORD-BIO
17h 05m1 stop
Delta Logo
11:55 am - 8:36 pmBIO-ORD
15h 41m2 stops
$635Delta
Find Deal
Mon, Dec 8 - Wed, Dec 24
Multiple Airlines Logo
2:42 pm - 11:15 pmORD-BIO
25h 33m2 stops
Multiple Airlines Logo
6:45 am - 7:22 pmBIO-ORD
19h 37m2 stops
$648Multiple Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 24
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
$650Turkish Airlines
Find Deal
Fri, Apr 3 - Tue, Apr 7
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
$690Turkish Airlines
Find Deal
Fri, Apr 3 - Tue, Apr 7
Lufthansa Logo
9:50 pm - 10:50 amORD-BIO
30h 00m1 stop
Lufthansa Logo
6:50 pm - 2:10 pmBIO-ORD
26h 20m1 stop
$761Lufthansa
Find Deal
Mon, Dec 29 - Thu, Jan 8
Multiple Airlines Logo
5:20 pm - 4:00 pmORD-BIO
15h 40m2 stops
Multiple Airlines Logo
12:10 pm - 3:10 pmBIO-ORD
34h 00m3 stops
$829Multiple Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 24
TAP AIR PORTUGAL Logo
11:30 am - 5:35 pmORD-BIO
23h 05m2 stops
TAP AIR PORTUGAL Logo
6:50 pm - 4:00 pmBIO-ORD
28h 10m1 stop
$885TAP AIR PORTUGAL
Find Deal
Fri, Apr 3 - Tue, Apr 7
TAP AIR PORTUGAL Logo
11:30 am - 5:35 pmORD-BIO
23h 05m2 stops
TAP AIR PORTUGAL Logo
6:50 pm - 4:00 pmBIO-ORD
28h 10m1 stop
$886TAP AIR PORTUGAL
Find Deal
Fri, Apr 3 - Tue, Apr 7
Lufthansa Logo
9:50 pm - 12:05 pmORD-BIO
31h 15m2 stops
Lufthansa Logo
6:50 pm - 1:10 pmBIO-ORD
25h 20m2 stops
$903Lufthansa
Find Deal
Mon, Dec 29 - Thu, Jan 8

United Airlines flights from Illinois to Bilbao

Our best United Airlines deals on Illinois to Bilbao flight tickets
United Airlines
Dec 8
ORD9:50 pmChicago O'Hare Intl
18h 15m
1 stop
BIO11:05 pmBilbao
Dec 24
BIO12:50 pmBilbao
14h 15m
1 stop
ORD8:05 pmChicago O'Hare Intl
$621
Find similar
United Airlines
Mar 27
STL4:50 pmLambert-St Louis
13h 10m
1 stop
BIO12:00 pmBilbao
Mar 31
BIO6:45 amBilbao
19h 41m
2 stops
STL7:26 pmLambert-St Louis
$831
Find similar
United Airlines
Mar 27
STL6:30 pmLambert-St Louis
22h 50m
2 stops
BIO11:20 pmBilbao
Mar 31
BIO6:45 amBilbao
22h 02m
2 stops
STL9:47 pmLambert-St Louis
$835
Find similar

Delta flights from Illinois to Bilbao

Our best Delta deals on Illinois to Bilbao flight tickets
Delta
Dec 8
ORD4:25 pmChicago O'Hare Intl
17h 05m
1 stop
BIO4:30 pmBilbao
Dec 24
BIO11:55 amBilbao
15h 41m
2 stops
ORD8:36 pmChicago O'Hare Intl
$635
Find similar
Delta
Dec 8
MDW9:34 amChicago Midway
18h 46m
2 stops
BIO11:20 amBilbao
Dec 24
BIO7:25 amBilbao
16h 54m
2 stops
MDW5:19 pmChicago Midway
$705
Find similar
Delta
Apr 3
ORD10:10 amChicago O'Hare Intl
17h 15m
2 stops
BIO10:25 amBilbao
Apr 7
BIO6:50 amBilbao
16h 47m
2 stops
ORD4:37 pmChicago O'Hare Intl
$1,012
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Illinois 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 10, 2025.
Use the filters below to find and compare flights from Illinois to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 12/8

9:50 pm-11:05 pm

1 stop18h 15m

Bilbao

Wed 12/24

12:50 pm-8:05 pm

1 stop14h 15m

$621

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 12/8

4:25 pm-4:30 pm

1 stop17h 05m

Bilbao

Wed 12/24

11:55 am-8:36 pm

2 stops15h 41m

$635

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 12/8

2:42 pm-11:15 pm

2 stops25h 33m

Bilbao

Wed 12/24

6:45 am-7:22 pm

2 stops19h 37m

$648

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 4/3

11:25 am-10:55 am

1 stop16h 30m

Bilbao

Tue 4/7

11:55 am-6:15 pm

1 stop37h 20m

$650

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 4/3

11:25 am-10:55 am

1 stop16h 30m

Bilbao

Tue 4/7

11:55 am-6:15 pm

1 stop37h 20m

$690

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 12/29

9:50 pm-10:50 am

1 stop30h 00m

Bilbao

Thu 1/8

6:50 pm-2:10 pm

1 stop26h 20m

$761

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 12/8

5:20 pm-4:00 pm

2 stops15h 40m

Bilbao

Wed 12/24

12:10 pm-3:10 pm

3 stops34h 00m

$829

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 4/3

11:30 am-5:35 pm

2 stops23h 05m

Bilbao

Tue 4/7

6:50 pm-4:00 pm

1 stop28h 10m

$885

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 4/3

11:30 am-5:35 pm

2 stops23h 05m

Bilbao

Tue 4/7

6:50 pm-4:00 pm

1 stop28h 10m

$886

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Mon 12/29

9:50 pm-12:05 pm

2 stops31h 15m

Bilbao

Thu 1/8

6:50 pm-1:10 pm

2 stops25h 20m

$903

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 Illinois 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 Illinois 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 Illinois 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.

Can stopping save me money on Illinois to Bilbao flights?

You could potentially save up to 6% on your flight if you consider stops on a Illinois to Bilbao flight.

Cheap Illinois to Bilbao flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Bilbao

Direct flights

None
There are no direct flights from Illinois to Bilbao. There are no popular flight routes from Illinois to Bilbao.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Bilbao Airport?

    Prices for flights from Illinois to Bilbao Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Illinois to Bilbao Airport?

  • How old do you have to be to fly from Illinois 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 Illinois to Bilbao Airport.

  • What documentation or ID do you need to fly to Bilbao Airport?

    The travel and health documents you'll need for your trip to Bilbao Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bilbao Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to Bilbao

Compare and see reviews for airlines that fly from Illinois to Bilbao with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom $612Free CancellationRating
7.0
3,007 reviews
Search Iberia flights
United AirlinesPriceFrom $639Free CancellationRating
7.4
9,011 reviews
Search United Airlines flights
LufthansaPriceFrom $698Free CancellationRating
6.8
7,562 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 Illinois to Bilbao?

Finding the right flight to Bilbao from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Bilbao quick and easy, saving you time and money.

Can I find flights from Illinois to Bilbao with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to Bilbao flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to Bilbao?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Bilbao.

I’m not ready to book a flight from Illinois to Bilbao right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Bilbao from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices 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
Wed 12/10
Wed 12/17
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