How does KAYAK find such low prices on flights from Illinois to Bilbao?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Bilbao. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Bilbao?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Bilbao?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bilbao with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Bilbao?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bilbao from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$260 CHEAP FLIGHTS from Illinois to Bilbao

BIO

KAYAK searches hundreds of travel sites at once for deals on flights to Bilbao

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Cheapest round-trip

$511

United Airlines

Tue 3/17Tue 3/24

STL - BIO • 2 stops

Cheapest one-way

$260

Multiple Airlines

Thu 4/23

ORD - BIO • 2 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Bilbao!

Flight Deals

Cheap Flights from Illinois to Bilbao

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Illinois to Bilbao

Tue, Mar 17 - Tue, Mar 24

7:00 pm - 9:55 pm

STL

BIO

44h 55m

2 stops

12:50 pm - 9:21 am

BIO

STL

50h 31m

2 stops

$511United Airlines

Mon, Mar 23 - Wed, Apr 8

10:50 pm - 11:05 pm

ORD

BIO

18h 15m

1 stop

6:50 am - 7:55 pm

BIO

ORD

20h 05m

1 stop

$549Lufthansa

Tue, Mar 17 - Tue, Mar 24

12:50 pm - 4:10 pm

ORD

BIO

21h 20m

1 stop

12:00 pm - 11:05 am

BIO

ORD

29h 05m

1 stop

$560Turkish Airlines

Mon, Mar 23 - Wed, Apr 8

10:50 pm - 11:05 pm

ORD

BIO

18h 15m

1 stop

7:15 am - 7:55 pm

BIO

ORD

19h 40m

2 stops

$571Lufthansa

Mon, Mar 23 - Wed, Apr 8

10:40 am - 11:30 am

ORD

BIO

18h 50m

2 stops

6:45 am - 3:19 pm

BIO

ORD

15h 34m

2 stops

$587Delta

Tue, Mar 17 - Tue, Mar 24

12:50 pm - 12:00 pm

ORD

BIO

17h 10m

2 stops

9:05 pm - 9:05 pm

BIO

ORD

30h 00m

2 stops

$614Multiple Airlines

Mon, Mar 2 - Mon, Mar 9

8:20 pm - 4:10 pm

ORD

BIO

36h 50m

1 stop

12:00 pm - 11:05 am

BIO

ORD

29h 05m

1 stop

$617Turkish Airlines

Tue, Mar 17 - Tue, Mar 24

10:00 am - 12:00 pm

ORD

BIO

20h 00m

3 stops

9:05 pm - 2:25 pm

BIO

ORD

23h 20m

2 stops

$623Multiple Airlines

Tue, Mar 17 - Tue, Mar 24

2:05 pm - 11:20 am

MDW

BIO

15h 15m

2 stops

6:50 am - 5:22 pm

BIO

MDW

16h 32m

2 stops

$1,071KLM

Fri, Apr 17 - Sun, Apr 26

5:21 pm - 4:00 pm

MDW

BIO

15h 39m

2 stops

6:45 am - 6:36 pm

BIO

MDW

18h 51m

2 stops

$1,505Delta

Useful Info

Low season	April
High season	August
Cheapest flight	$260

Best time to beat the crowds but there is an average 2% increase in price.

Most popular time to fly with an average 3% increase in price.

Flight from Chicago to Bilbao

How does KAYAK find such low prices on flights from Illinois to Bilbao?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Bilbao.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Bilbao?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Bilbao?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bilbao with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Bilbao?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bilbao from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Getxo

Laredo

Lekeitio

Everything you need to know for your flight to Bilbao

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Bilbao

Bilbao (BIO)

BIO

$260 Find Cheap Flights from Illinois to Bilbao

KAYAK searches hundreds of travel sites at once for deals on flights to Bilbao

Everything you should know

Cheap Flights from Illinois to Bilbao

Recent round-trip flight deals from Illinois to Bilbao

Recent one-way flight deals from Illinois to Bilbao

Good to know

FAQs for booking flights from Illinois to Bilbao

How does KAYAK find such low prices on flights from Illinois to Bilbao?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Bilbao.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Bilbao?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Bilbao from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Bilbao?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Bilbao with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Bilbao?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Bilbao from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Bilbao?

Everything you need to know for your flight to Bilbao

Information on the airport you'll fly into in Bilbao

Cabin class types available on flights to Illinois

Complete your trip to Bilbao with a hotel stay or car rental

Find direct flights for Bilbao

Flights to other popular destinations

Flights from domestic origins to Bilbao

Choose which airport to fly into in Bilbao

Find deals for your return flight