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>

$355 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

$557

Typical prices: $618-$729

Turkish Airlines

Wed 2/25Wed 3/4

ORD - BIO • 1 stop

Cheapest one-way

$355

American Airlines

Thu 7/16

STL - 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

Wed, Feb 25 - Wed, Mar 4

8:20 pm - 11:00 am

ORD

BIO

31h 40m

1 stop

5:10 pm - 10:05 am

BIO

ORD

23h 55m

1 stop

$557Turkish Airlines

Wed, Mar 4 - Tue, Mar 17

11:50 am - 4:10 pm

ORD

BIO

21h 20m

1 stop

12:00 pm - 7:25 pm

BIO

ORD

37h 25m

1 stop

$559Turkish Airlines

Mon, Apr 20 - Tue, Apr 28

9:40 pm - 5:55 pm

ORD

BIO

13h 15m

1 stop

6:50 am - 12:55 pm

BIO

ORD

13h 05m

1 stop

$572Lufthansa

Sun, Apr 19 - Thu, Apr 30

5:55 pm - 11:25 pm

ORD

BIO

22h 30m

1 stop

6:50 am - 12:55 pm

BIO

ORD

13h 05m

1 stop

$573United Airlines

Sun, Apr 19 - Mon, Apr 27

4:20 pm - 11:15 am

ORD

BIO

11h 55m

1 stop

12:00 pm - 2:15 pm

BIO

ORD

33h 15m

1 stop

$577Delta

Sun, Apr 19 - Tue, Apr 28

6:01 pm - 11:25 pm

ORD

BIO

22h 24m

2 stops

6:50 am - 2:50 pm

BIO

ORD

15h 00m

1 stop

$578United Airlines

Sun, Apr 19 - Mon, Apr 27

8:15 am - 11:15 am

ORD

BIO

20h 00m

2 stops

12:00 pm - 2:15 pm

BIO

ORD

33h 15m

1 stop

$581Delta

Mon, Apr 20 - Tue, Apr 28

12:50 pm - 5:55 pm

ORD

BIO

22h 05m

2 stops

7:15 am - 10:03 pm

BIO

ORD

21h 48m

2 stops

$587Air Canada

Sat, Apr 18 - Tue, Apr 28

5:57 pm - 11:10 am

ORD

BIO

34h 13m

2 stops

7:15 am - 9:50 am

BIO

ORD

33h 35m

2 stops

$592Air Canada

Fri, Mar 27 - Fri, Apr 3

4:50 pm - 12:00 pm

STL

BIO

13h 10m

1 stop

6:50 am - 1:25 pm

BIO

STL

13h 35m

1 stop

$803Lufthansa

Useful Info

Low season	February
High season	August
Cheapest flight	$355

Best time to beat the crowds but there is an average 78% increase in price.

Most popular time to fly and prices are also 10% lower on average.

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

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Cabin class

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Direct Flights

Flights to other cities

Origins

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Return flight deals

Information on the airport you'll fly into in Bilbao

Bilbao (BIO)

BIO

$355 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