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>

$246 CHEAP FLIGHTS from Illinois to Brussels

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

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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

Wed, Jan 28 - Fri, Feb 6

6:30 pm - 11:55 amORD-BRU

10h 25m1 stop

12:50 pm - 5:20 pmBRU-ORD

11h 30m1 stop

$423Icelandair

Find Deal

Sun, Oct 5 - Thu, Oct 16

7:25 pm - 12:50 pmORD-BRU

10h 25m1 stop

1:50 pm - 6:15 pmBRU-ORD

11h 25m1 stop

$425Icelandair

Find Deal

Wed, Nov 5 - Tue, Dec 9

7:20 pm - 10:50 amORD-BRU

32h 30m2 stops

11:30 am - 4:45 pmBRU-ORD

36h 15m2 stops

$428Scandinavian Airlines

Find Deal

Wed, Nov 5 - Tue, Dec 9

7:20 pm - 10:50 amORD-BRU

32h 30m2 stops

3:10 pm - 4:45 pmBRU-ORD

32h 35m1 stop

$432Scandinavian Airlines

Find Deal

Wed, Nov 12 - Thu, Nov 27

4:05 pm - 1:15 pmSTL-BRU

14h 10m2 stops

10:00 am - 12:28 pmBRU-STL

33h 28m2 stops

$589Air Canada

Find Deal

Wed, Nov 12 - Thu, Nov 27

11:49 am - 8:05 amSTL-BRU

13h 16m1 stop

10:00 am - 3:46 pmBRU-STL

36h 46m2 stops

$603United Airlines

Find Deal

Mon, Jan 12 - Fri, Jan 23

4:05 pm - 7:50 amSTL-BRU

32h 45m2 stops

10:00 am - 3:29 pmBRU-STL

36h 29m2 stops

$605Air Canada

Find Deal

Mon, Jan 12 - Fri, Jan 23

11:20 am - 8:55 amSTL-BRU

14h 35m1 stop

10:10 am - 9:13 pmBRU-STL

18h 03m1 stop

$606United Airlines

Find Deal

Mon, Oct 13 - Tue, Oct 21

8:40 am - 8:05 pmORD-CRL

28h 25m2 stops

9:05 pm - 3:55 pmCRL-ORD

25h 50m2 stops

$607

Find Deal

Sun, Oct 19 - Tue, Oct 28

6:00 pm - 5:45 pmORD-CRL

16h 45m2 stops

10:05 am - 4:00 pmCRL-ORD

35h 55m2 stops

$623

Find Deal

Useful Info

Cheapest flight	$246

Flight from Chicago O'Hare Airport to Brussels Airport

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

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

$246 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