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>

$391 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 24% 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.

Cheapest round-trip

$454

Overall average: $780

Scandinavian Airlines

Wed 1/14Fri 1/30

ORD - BIO • 2 stops

Cheapest one-way

$391

Multiple Airlines

Thu 12/11

STL - BIO • 3 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

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

Recent round-trip flight deals from Illinois to Bilbao

Wed, Jan 14 - Fri, Jan 30

6:25 pm - 6:40 pmORD-BIO

41h 15m2 stops

7:30 pm - 4:45 pmBIO-ORD

28h 15m1 stop

$454Scandinavian Airlines

Find Deal

Sun, Jan 11 - Fri, Jan 30

7:01 am - 6:40 pmORD-BIO

28h 39m2 stops

7:30 pm - 4:45 pmBIO-ORD

28h 15m1 stop

$473Scandinavian Airlines

Find Deal

Wed, Jan 14 - Mon, Jan 26

6:25 pm - 6:40 pmORD-BIO

41h 15m2 stops

7:30 pm - 1:14 pmBIO-ORD

48h 44m2 stops

$475Scandinavian Airlines

Find Deal

Wed, Jan 14 - Fri, Jan 30

6:25 pm - 6:40 pmORD-BIO

41h 15m2 stops

7:30 pm - 8:53 pmBIO-ORD

32h 23m2 stops

$479Scandinavian Airlines

Find Deal

Fri, Feb 6 - Tue, Feb 10

6:57 pm - 5:20 pmSTL-BIO

15h 23m2 stops

6:50 am - 11:37 pmBIO-STL

23h 47m2 stops

$485Delta

Find Deal

Thu, Jan 15 - Mon, Jan 26

7:20 pm - 6:40 pmORD-BIO

16h 20m1 stop

7:30 pm - 1:14 pmBIO-ORD

48h 44m2 stops

$492Scandinavian Airlines

Find Deal

Sun, Jan 11 - Fri, Jan 30

7:10 pm - 6:40 pmORD-BIO

16h 30m1 stop

7:30 pm - 4:45 pmBIO-ORD

28h 15m1 stop

$493Scandinavian Airlines

Find Deal

Tue, Jan 13 - Wed, Jan 28

1:28 pm - 11:30 amMDW-BIO

15h 02m2 stops

6:50 am - 6:36 pmBIO-MDW

18h 46m2 stops

$584Delta

Find Deal

Fri, Jan 30 - Tue, Feb 3

9:33 am - 5:20 pmMDW-BIO

24h 47m2 stops

6:50 am - 6:36 pmBIO-MDW

18h 46m2 stops

$740KLM

Find Deal

Thu, Jan 15 - Tue, Jan 27

1:28 pm - 11:30 amMDW-BIO

15h 02m2 stops

7:25 am - 5:29 pmBIO-MDW

17h 04m2 stops

$885Multiple Airlines

Find Deal

Useful Info

Low season	February
High season	June
Cheapest flight	$391

Best time to beat the crowds with an average 47% drop in price.

Most popular time to fly with an average 7% 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)

BIO

$391 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