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>

$439 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

$439

Overall average: $678

TAP AIR PORTUGAL

週日 3/1週六 3/7

ORD - BIO • 1 stop

Cheapest one-way

$490

Multiple Airlines

週三 12/10

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

週日, 3月 1 - 週六, 3月 7

8:25 pm - 6:35 pmORD-BIO

15h 10m1 stop

12:10 pm - 2:45 pmBIO-ORD

33h 35m1 stop

$439TAP AIR PORTUGAL

Find Deal

週五, 2月 6 - 週二, 2月 10

7:10 am - 5:20 pmSTL-BIO

27h 10m2 stops

7:25 am - 4:37 pmBIO-STL

16h 12m2 stops

$480Delta

Find Deal

週五, 2月 6 - 週二, 2月 10

9:59 am - 5:20 pmSTL-BIO

24h 21m2 stops

6:50 am - 8:37 pmBIO-STL

20h 47m2 stops

$484Delta

Find Deal

週六, 4月 25 - 週日, 5月 17

7:15 pm - 11:35 amORD-BIO

33h 20m1 stop

9:25 pm - 4:10 pmBIO-ORD

25h 45m1 stop

$505Scandinavian Airlines

Find Deal

週三, 1月 28 - 週日, 2月 1

5:55 pm - 4:10 pmORD-BIO

15h 15m1 stop

6:45 am - 1:10 pmBIO-ORD

13h 25m1 stop

$521United Airlines

Find Deal

週五, 1月 23 - 週二, 1月 27

6:00 pm - 11:20 pmORD-BIO

22h 20m1 stop

11:35 am - 6:25 pmBIO-ORD

13h 50m1 stop

$523Lufthansa

Find Deal

週三, 1月 28 - 週日, 2月 1

8:45 am - 4:10 pmORD-BIO

24h 25m2 stops

6:45 am - 3:20 pmBIO-ORD

15h 35m1 stop

$525United Airlines

Find Deal

週日, 3月 1 - 週六, 3月 7

7:20 pm - 10:55 pmORD-BIO

20h 35m2 stops

3:10 pm - 4:45 pmBIO-ORD

32h 35m2 stops

$533Multiple Airlines

Find Deal

週日, 3月 1 - 週六, 3月 7

6:00 pm - 6:05 pmORD-BIO

17h 05m1 stop

11:35 am - 5:55 pmBIO-ORD

61h 20m2 stops

$539Lufthansa

Find Deal

週日, 3月 1 - 週六, 3月 7

7:05 am - 9:20 pmORD-BIO

31h 15m3 stops

7:45 pm - 4:45 pmBIO-ORD

28h 00m2 stops

$583Multiple Airlines

Find Deal

Useful Info

Low season	February
High season	June
Cheapest flight	$439

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 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

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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

$439 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