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>

$597 CHEAP FLIGHTS from Illinois to Bilbao

BIO

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

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals

Cheap Flights from Illinois to Bilbao

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Bilbao that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Round-trip

One-way

Last minute

Recent round-trip flight deals from Illinois to Bilbao

Sun, Oct 5 - Wed, Oct 15

3:30 pm - 6:25 pmSTL-BIO

19h 55m1 stop

6:45 am - 3:44 pmBIO-STL

15h 59m2 stops

$597Lufthansa

Find Deal

Sun, Oct 5 - Wed, Oct 15

12:25 pm - 5:50 pmSTL-BIO

22h 25m2 stops

6:45 am - 3:44 pmBIO-STL

15h 59m2 stops

$598Lufthansa

Find Deal

Sun, Dec 7 - Mon, Dec 15

4:45 pm - 12:50 pmORD-BIO

13h 05m1 stop

9:35 pm - 2:30 pmBIO-ORD

23h 55m1 stop

$600Iberia

Find Deal

Sun, Oct 5 - Wed, Oct 15

8:03 pm - 9:55 pmSTL-BIO

18h 52m2 stops

6:45 am - 8:26 pmBIO-STL

20h 41m2 stops

$604Iberia

Find Deal

Wed, Oct 8 - Mon, Oct 13

7:50 pm - 11:05 amORD-BIO

32h 15m1 stop

12:05 pm - 9:40 amBIO-ORD

28h 35m1 stop

$606Turkish Airlines

Find Deal

Wed, Sep 24 - Wed, Oct 1

10:30 pm - 10:25 pmORD-BIO

16h 55m1 stop

6:45 am - 2:55 pmBIO-ORD

15h 10m1 stop

$615United Airlines

Find Deal

Wed, Sep 24 - Wed, Oct 1

10:35 am - 4:05 pmORD-BIO

22h 30m2 stops

6:45 am - 2:55 pmBIO-ORD

15h 10m1 stop

$620United Airlines

Find Deal

Sun, Dec 7 - Sun, Dec 14

8:20 pm - 11:00 amORD-BIO

31h 40m1 stop

5:10 pm - 6:25 pmBIO-ORD

32h 15m1 stop

$630Turkish Airlines

Find Deal

Sun, Dec 7 - Mon, Dec 15

7:20 pm - 6:40 pmORD-BIO

16h 20m1 stop

7:30 pm - 10:02 pmBIO-ORD

33h 32m2 stops

$634Scandinavian Airlines

Find Deal

Sat, Nov 1 - Mon, Nov 10

8:20 pm - 5:20 pmORD-BIO

15h 00m2 stops

7:30 pm - 9:50 pmBIO-ORD

33h 20m2 stops

$689Scandinavian Airlines

Find Deal

Useful Info

Low season	April
High season	August
Cheapest flight	$597

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

Most popular time to fly with an average 5% increase in price.

Flight from St. Louis 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)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

BIO

$597 Find Cheap Flights from Illinois to Bilbao

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

Cheap Flights from Illinois to Bilbao

Recent round-trip flight deals from Illinois to Bilbao

Recent one-way flight deals from Illinois to Bilbao

Recent last minute 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