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Cheap flights from Illinois to Bilbao from $339

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 10/9. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Bilbao

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
6:00 pm - 5:35 pm
ORD
-
BIO
16h 35m
1 stop
TAP AIR PORTUGAL Logo
6:50 pm - 4:00 pm
BIO
-
ORD
28h 10m
1 stop
$579TAP AIR PORTUGAL
Fri, Oct 9 - Tue, Oct 20
TAP AIR PORTUGAL Logo
6:00 pm - 5:35 pm
ORD
-
BIO
16h 35m
1 stop
TAP AIR PORTUGAL Logo
6:50 pm - 4:00 pm
BIO
-
ORD
28h 10m
1 stop
$588TAP AIR PORTUGAL
Fri, Oct 9 - Tue, Oct 20
Turkish Airlines Logo
11:25 am - 11:05 am
ORD
-
BIO
16h 40m
1 stop
Turkish Airlines Logo
12:05 pm - 9:40 am
BIO
-
ORD
28h 35m
1 stop
$700Turkish Airlines
Sun, Sep 20 - Tue, Oct 6
Turkish Airlines Logo
11:25 am - 11:05 am
ORD
-
BIO
16h 40m
1 stop
Turkish Airlines Logo
12:05 pm - 9:40 am
BIO
-
ORD
28h 35m
1 stop
$701Turkish Airlines
Sun, Sep 20 - Tue, Oct 6
Lufthansa Logo
1:08 pm - 11:40 am
STL
-
BIO
15h 32m
2 stops
Lufthansa Logo
6:45 am - 1:45 pm
BIO
-
STL
14h 00m
1 stop
$722Lufthansa
Mon, Nov 23 - Fri, Nov 27
Lufthansa Logo
1:08 pm - 11:40 am
STL
-
BIO
15h 32m
2 stops
Lufthansa Logo
6:45 am - 4:51 pm
BIO
-
STL
17h 06m
2 stops
$729Lufthansa
Mon, Nov 23 - Fri, Nov 27
Lufthansa Logo
6:50 pm - 11:05 pm
STL
-
BIO
22h 15m
2 stops
Lufthansa Logo
6:50 pm - 9:40 pm
BIO
-
STL
33h 50m
2 stops
$751Lufthansa
Sun, Oct 25 - Mon, Nov 16
United Airlines Logo
9:50 pm - 9:55 pm
ORD
-
BIO
17h 05m
1 stop
United Airlines Logo
6:50 am - 2:50 pm
BIO
-
ORD
15h 00m
1 stop
$758United Airlines
Sun, Jan 10 - Fri, May 7
United Airlines Logo
4:20 pm - 9:55 pm
ORD
-
BIO
22h 35m
2 stops
United Airlines Logo
6:50 am - 2:50 pm
BIO
-
ORD
15h 00m
1 stop
$762United Airlines
Sun, Jan 10 - Fri, May 7
United Airlines Logo
10:45 am - 11:00 am
ORD
-
BIO
17h 15m
2 stops
United Airlines Logo
6:50 am - 6:47 pm
BIO
-
ORD
18h 57m
2 stops
$773United Airlines
Sun, Jan 10 - Fri, May 7

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TAP AIR PORTUGAL flights from Illinois to Bilbao

Our best TAP AIR PORTUGAL deals on Illinois to Bilbao flight tickets
TAP AIR PORTUGAL
Oct 9
ORD6:00 pmChicago O'Hare Intl
16h 35m
1 stop
BIO5:35 pmBilbao
Oct 20
BIO6:50 pmBilbao
28h 10m
1 stop
ORD4:00 pmChicago O'Hare Intl
$579
TAP AIR PORTUGAL
Oct 9
ORD6:00 pmChicago O'Hare Intl
16h 35m
1 stop
BIO5:35 pmBilbao
Oct 20
BIO6:50 pmBilbao
28h 10m
1 stop
ORD4:00 pmChicago O'Hare Intl
$588

SWISS flights from Illinois to Bilbao

Our best SWISS deals on Illinois to Bilbao flight tickets
SWISS
Sep 14
ORD2:20 pmChicago O'Hare Intl
13h 30m
1 stop
BIO10:50 amBilbao
Sep 24
BIO8:45 pmBilbao
22h 50m
1 stop
ORD12:35 pmChicago O'Hare Intl
$783
SWISS
Sep 14
ORD2:20 pmChicago O'Hare Intl
13h 30m
1 stop
BIO10:50 amBilbao
Sep 21
BIO10:15 amBilbao
33h 20m
1 stop
ORD12:35 pmChicago O'Hare Intl
$788
SWISS
Sep 15
ORD2:40 pmChicago O'Hare Intl
20h 15m
2 stops
BIO5:55 pmBilbao
Sep 24
BIO8:45 pmBilbao
22h 50m
1 stop
ORD12:35 pmChicago O'Hare Intl
$799

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 August 1, 2026.
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

Cheapest round-trip

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 10/9

6:00 pm-5:35 pm

1 stop16h 35m

Bilbao

Tue 10/20

6:50 pm-4:00 pm

1 stop28h 10m

$579

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Fri 10/9

6:00 pm-5:35 pm

1 stop16h 35m

Bilbao

Tue 10/20

6:50 pm-4:00 pm

1 stop28h 10m

$588

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 9/20

11:25 am-11:05 am

1 stop16h 40m

Bilbao

Tue 10/6

12:05 pm-9:40 am

1 stop28h 35m

$700

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 9/20

11:25 am-11:05 am

1 stop16h 40m

Bilbao

Tue 10/6

12:05 pm-9:40 am

1 stop28h 35m

$701
Quickest round-trip

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Mon 11/23

1:08 pm-11:40 am

2 stops15h 32m

Bilbao

Fri 11/27

6:45 am-1:45 pm

1 stop14h 00m

$722

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Mon 11/23

1:08 pm-11:40 am

2 stops15h 32m

Bilbao

Fri 11/27

6:45 am-4:51 pm

2 stops17h 06m

$729

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Sun 10/25

6:50 pm-11:05 pm

2 stops22h 15m

Bilbao

Mon 11/16

6:50 pm-9:40 pm

2 stops33h 50m

$751

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 1/10

9:50 pm-9:55 pm

1 stop17h 05m

Bilbao

Fri 5/7

6:50 am-2:50 pm

1 stop15h 00m

$758

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 1/10

4:20 pm-9:55 pm

2 stops22h 35m

Bilbao

Fri 5/7

6:50 am-2:50 pm

1 stop15h 00m

$762

ChicagoBilbao

ORD - BIO

ORDBIO

Chicago O'Hare Intl

Sun 1/10

10:45 am-11:00 am

2 stops17h 15m

Bilbao

Fri 5/7

6:50 am-6:47 pm

2 stops18h 57m

$773

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 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 month to fly to Bilbao?

The cheapest month to fly to Bilbao from Illinois is in March. Flight prices, which tend to average around $640, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in March, then February is your next best option. Flight prices from Illinois to Bilbao during February average around $739.

Cheap Illinois to Bilbao flight deals and tips

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

Fastest flight time

13h 00m

Direct flights

None
The fastest flight from Illinois to Bilbao takes 13h 00m
There are no direct flights from Illinois to Bilbao. There are no popular flight routes from Illinois to Bilbao.
Search flight deals

Frequently asked questions about flying from Illinois to Bilbao

  • 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
LufthansaPriceFrom $584Free CancellationRating
6.8
8,175 reviews
Search Lufthansa flights
United AirlinesPriceFrom $699Free CancellationRating
7.4
10,062 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 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.

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