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>

$229 CHEAP FLIGHTS from Illinois to Brussels

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

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Cheapest round-trip

$391

Overall average: $1,025

Icelandair

Sun 4/12Mon 4/20

ORD - BRU • 1 stop

Cheapest non-stop

$752

Typical prices: $942-$1,483

United Airlines

Mon 5/4Thu 5/14

ORD - BRU • Non-stop

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We hope you love your trip to Brussels!

Flight Deals

Cheap Flights from Illinois to Brussels

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

Sun, Apr 12 - Mon, Apr 20

7:25 pm - 12:55 pm

ORD

BRU

10h 30m

1 stop

1:50 pm - 6:15 pm

BRU

ORD

11h 25m

1 stop

$391Icelandair

Sun, Apr 12 - Mon, Apr 20

7:25 pm - 12:55 pm

ORD

BRU

10h 30m

1 stop

1:50 pm - 6:15 pm

BRU

ORD

11h 25m

1 stop

$392Icelandair

Fri, Apr 24 - Wed, May 6

7:25 pm - 12:55 pm

ORD

BRU

10h 30m

1 stop

1:50 pm - 9:25 pm

BRU

ORD

14h 35m

1 stop

$399Icelandair

Sun, Feb 1 - Tue, Feb 10

6:40 pm - 7:50 am

STL

BRU

30h 10m

2 stops

10:00 am - 11:02 am

BRU

STL

32h 02m

2 stops

$430Air Canada

Tue, Mar 24 - Thu, Apr 2

10:00 am - 7:50 am

STL

BRU

15h 50m

2 stops

10:15 am - 9:08 pm

BRU

STL

17h 53m

1 stop

$438Multiple Airlines

Tue, Mar 24 - Thu, Apr 2

10:00 am - 7:50 am

STL

BRU

15h 50m

2 stops

10:15 am - 9:08 pm

BRU

STL

17h 53m

1 stop

$441Multiple Airlines

Sun, Feb 1 - Tue, Feb 10

1:15 pm - 8:55 am

STL

BRU

12h 40m

1 stop

10:10 am - 10:58 pm

BRU

STL

19h 48m

1 stop

$442Lufthansa

Tue, Mar 24 - Thu, Apr 2

7:40 am - 7:50 am

STL

BRU

18h 10m

2 stops

9:25 am - 10:56 pm

BRU

STL

20h 31m

2 stops

$451Air Canada

Sun, Feb 1 - Tue, Feb 10

6:30 am - 7:15 am

STL

BRU

17h 45m

2 stops

10:10 am - 4:03 pm

BRU

STL

12h 53m

1 stop

$453United Airlines

Wed, Mar 18 - Wed, Mar 25

8:30 am - 7:15 am

STL

BRU

16h 45m

1 stop

10:00 am - 9:42 pm

BRU

STL

17h 42m

2 stops

$462United Airlines

Useful Info

Cheapest flight	$229

Flight from Chicago to Charleroi 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

Premium Economy Class flights to Brussels

Economy Class flights to Brussels

$229 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