How does KAYAK find such low prices on flights from Illinois to Brussels?

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 Brussels. 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 Brussels?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels 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 Brussels?

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 Brussels 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 Brussels?

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 Brussels 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>

$227 CHEAP FLIGHTS from Illinois to Brussels

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

...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

$410

Typical prices: $549-$889

Scandinavian Airlines

Mon 1/12Tue 1/20

ORD - BRU • 2 stops

Cheapest non-stop

$707

Typical prices: $764-$964

Brussels Airlines

Tue 1/13Tue 1/20

ORD - BRU • Non-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 Brussels!

Flight Deals

Cheap Flights from Illinois to Brussels

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Brussels 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

Direct

Recent round-trip flight deals from Illinois to Brussels

Mon, Jan 12 - Tue, Jan 20

7:05 am - 9:40 amORD-BRU

19h 35m2 stops

7:20 pm - 4:45 pmBRU-ORD

28h 25m2 stops

$410Scandinavian Airlines

Find Deal

Wed, Apr 8 - Thu, Apr 16

7:25 pm - 12:50 pmORD-BRU

10h 25m1 stop

1:50 pm - 6:15 pmBRU-ORD

11h 25m1 stop

$412Icelandair

Find Deal

Mon, Jan 12 - Wed, Jan 21

1:15 pm - 8:55 amSTL-BRU

12h 40m1 stop

7:00 am - 4:03 pmBRU-STL

16h 03m2 stops

$457Lufthansa

Find Deal

Mon, Jan 12 - Wed, Jan 21

1:15 pm - 8:55 amSTL-BRU

12h 40m1 stop

7:00 am - 1:55 pmBRU-STL

13h 55m1 stop

$462Lufthansa

Find Deal

Mon, Jan 12 - Wed, Jan 21

9:57 am - 7:50 amSTL-BRU

14h 53m2 stops

2:25 pm - 3:29 pmBRU-STL

32h 04m2 stops

$474Air Canada

Find Deal

Thu, Jan 29 - Tue, Feb 3

4:05 pm - 1:15 pmSTL-BRU

14h 10m2 stops

10:00 am - 12:29 pmBRU-STL

33h 29m2 stops

$482Air Canada

Find Deal

Sun, Jan 11 - Sun, Jan 25

4:05 pm - 1:15 pmSTL-BRU

38h 10m2 stops

7:00 am - 1:55 pmBRU-STL

13h 55m1 stop

$496Multiple Airlines

Find Deal

Thu, Jan 29 - Tue, Feb 3

4:05 pm - 1:15 pmSTL-BRU

14h 10m2 stops

11:15 am - 5:18 pmBRU-STL

13h 03m1 stop

$505United Airlines

Find Deal

Wed, Jan 28 - Sun, Feb 1

11:20 am - 8:55 amSTL-BRU

14h 35m1 stop

11:55 am - 10:58 pmBRU-STL

18h 03m2 stops

$512United Airlines

Find Deal

Tue, Jan 13 - Tue, Jan 20

3:35 pm - 8:55 pmORD-CRL

22h 20m2 stops

8:10 am - 8:10 pmCRL-ORD

19h 00m2 stops

$587Multiple Airlines

Find Deal

Useful Info

Cheapest flight	$227

Flight from Chicago O'Hare Airport to Brussels

How does KAYAK find such low prices on flights from Illinois to Brussels?
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 Brussels.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Brussels?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels 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 Brussels?
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 Brussels 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 Brussels?
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 Brussels from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Brussels

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Illinois

First Class flights to Brussels

Business Class flights to Brussels

Prem Econ Class flights to Brussels

Economy Class flights to Brussels

$227 Find Cheap Flights from Illinois to Brussels

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

Everything you should know

Cheap Flights from Illinois to Brussels

Recent round-trip flight deals from Illinois to Brussels

Recent one-way flight deals from Illinois to Brussels

Recent last minute flight deals from Illinois to Brussels

Recent direct flight deals from Illinois to Brussels

Good to know

FAQs for booking flights from Illinois to Brussels

How does KAYAK find such low prices on flights from Illinois to Brussels?

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 Brussels.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Brussels?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Brussels 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 Brussels?

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 Brussels 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 Brussels?

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 Brussels from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Brussels

Cabin class types available on flights to Illinois

Complete your trip to Brussels with a hotel stay or car rental

Find direct flights for Brussels

Flights to other popular destinations

Flights from domestic origins to Brussels

Choose which airport to fly into in Brussels

Find deals for your return flight