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>

$224 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 23% 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.

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

Wed, Mar 4 - Mon, Mar 9

3:50 pm - 9:35 am

ORD

BRU

10h 45m

1 stop

10:15 am - 6:55 pm

BRU

ORD

14h 40m

1 stop

$431Aer Lingus

Mon, Apr 20 - Mon, Apr 27

7:15 pm - 7:50 pm

ORD

BRU

17h 35m

1 stop

5:45 am - 4:10 pm

BRU

ORD

17h 25m

1 stop

$451Scandinavian Airlines

Wed, Mar 18 - Wed, Mar 25

1:14 pm - 1:15 pm

STL

BRU

18h 01m

2 stops

10:00 am - 2:42 pm

BRU

STL

34h 42m

2 stops

$486United Airlines

Wed, Mar 18 - Wed, Mar 25

6:25 am - 7:55 am

STL

BRU

19h 30m

1 stop

10:00 am - 2:42 pm

BRU

STL

34h 42m

2 stops

$489United Airlines

Wed, Mar 18 - Wed, Mar 25

10:00 am - 7:50 am

STL

BRU

15h 50m

2 stops

10:00 am - 2:42 pm

BRU

STL

34h 42m

2 stops

$493Air Canada

Sat, Apr 11 - Wed, Apr 22

8:15 pm - 7:10 am

STL

BRU

27h 55m

2 stops

9:25 am - 3:24 pm

BRU

STL

36h 59m

2 stops

$514Air Canada

Wed, Mar 18 - Wed, Mar 25

7:03 am - 8:00 am

STL

BRU

18h 57m

1 stop

2:45 pm - 9:05 am

BRU

STL

24h 20m

2 stops

$520Delta

Mon, Apr 20 - Mon, Apr 27

7:25 pm - 11:00 pm

ORD

CRL

20h 35m

2 stops

8:50 am - 5:50 pm

CRL

ORD

16h 00m

2 stops

$548Multiple Airlines

Mon, Apr 20 - Mon, Apr 27

7:25 pm - 11:00 pm

ORD

CRL

20h 35m

2 stops

8:50 am - 5:50 pm

CRL

ORD

16h 00m

2 stops

$549Multiple Airlines

Sun, Apr 12 - Tue, Apr 21

10:45 am - 7:40 am

MDW

BRU

13h 55m

1 stop

9:45 am - 4:26 pm

BRU

MDW

13h 41m

1 stop

$756Delta

Useful Info

Cheapest flight	$224

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

$224 Find Cheap Flights from Illinois to Brussels

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

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