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>

$392 CHEAP FLIGHTS from Illinois to Bilbao

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

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Cheapest round-trip

$452

Lufthansa

Mon 4/20Wed 4/29

STL - BIO • 2 stops

Cheapest one-way

$392

Lufthansa

Wed 3/4

ORD - BIO • 1 stop

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

Mon, Apr 20 - Wed, Apr 29

6:35 pm - 11:25 pm

STL

BIO

21h 50m

2 stops

6:50 am - 1:25 pm

BIO

STL

13h 35m

1 stop

$452Lufthansa

Mon, Mar 2 - Mon, Mar 9

5:40 pm - 8:50 pm

ORD

BIO

20h 10m

1 stop

9:35 pm - 3:55 pm

BIO

ORD

24h 20m

1 stop

$452Multiple Airlines

Mon, Apr 20 - Wed, Apr 29

6:35 pm - 11:25 pm

STL

BIO

21h 50m

2 stops

7:15 am - 9:08 pm

BIO

STL

20h 53m

2 stops

$455Lufthansa

Mon, Mar 2 - Mon, Mar 9

3:50 pm - 12:50 pm

ORD

BIO

14h 00m

2 stops

9:35 pm - 3:55 pm

BIO

ORD

24h 20m

1 stop

$456Iberia

Sun, Mar 1 - Tue, Mar 17

9:50 pm - 6:05 pm

ORD

BIO

13h 15m

1 stop

11:35 am - 7:25 pm

BIO

ORD

13h 50m

1 stop

$460Lufthansa

Sun, Mar 1 - Tue, Mar 17

6:00 pm - 6:05 pm

ORD

BIO

17h 05m

1 stop

6:45 am - 6:28 pm

BIO

ORD

17h 43m

2 stops

$473United Airlines

Tue, Apr 21 - Wed, Apr 29

9:10 am - 5:55 pm

STL

BIO

25h 45m

2 stops

6:50 am - 1:25 pm

BIO

STL

13h 35m

1 stop

$477United Airlines

Mon, Apr 20 - Thu, Apr 30

7:45 am - 11:25 pm

STL

BIO

32h 40m

2 stops

6:50 am - 9:08 pm

BIO

STL

21h 18m

2 stops

$478United Airlines

Sun, Apr 19 - Thu, Apr 30

4:43 pm - 5:30 pm

STL

BIO

17h 47m

2 stops

6:50 am - 8:38 pm

BIO

STL

20h 48m

2 stops

$485Delta

Mon, Mar 2 - Mon, Mar 9

12:45 pm - 11:30 am

MDW

BIO

15h 45m

2 stops

6:50 am - 6:40 pm

BIO

MDW

17h 50m

2 stops

$623Delta

Useful Info

Low season	April
High season	August
Cheapest flight	$392

Best time to beat the crowds but there is an average 4% increase in price.

Most popular time to fly with an average 4% 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

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Cabin class

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Direct Flights

Flights to other cities

Origins

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Information on the airport you'll fly into in Bilbao

Bilbao (BIO)

BIO

$392 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