$245 Find Cheap Flights from Illinois to Brussels

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Brussels departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$438
Typical prices: $598-$846
United Airlines
Wed 3/18Wed 3/25
STL - BRU • 1 stop
Cheapest non-stop
$744
Typical prices: $1,035-$1,235
Brussels Airlines
Sun 3/8Tue 3/17
ORD - BRU • Non-stop
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Flight Deals
Useful Info
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.

Recent round-trip flight deals from Illinois to Brussels

Wed, Mar 18 - Wed, Mar 25
United Airlines Logo
8:30 am - 7:15 am
STL
-
BRU
16h 45m
1 stop
United Airlines Logo
10:00 am - 2:42 pm
BRU
-
STL
34h 42m
2 stops
$438United Airlines
Wed, Mar 18 - Wed, Mar 25
Air Canada Logo
10:00 am - 7:50 am
STL
-
BRU
15h 50m
2 stops
Air Canada Logo
10:00 am - 2:42 pm
BRU
-
STL
34h 42m
2 stops
$442Air Canada
Sun, Mar 1 - Tue, Mar 10
Air Canada Logo
4:05 pm - 7:50 am
STL
-
BRU
32h 45m
2 stops
Air Canada Logo
10:00 am - 2:42 pm
BRU
-
STL
34h 42m
2 stops
$445Air Canada
Mon, Mar 2 - Tue, Mar 10
Scandinavian Airlines Logo
7:20 pm - 7:50 pm
ORD
-
BRU
17h 30m
1 stop
Scandinavian Airlines Logo
7:15 pm - 5:45 pm
BRU
-
ORD
28h 30m
1 stop
$449Scandinavian Airlines
Mon, Mar 2 - Tue, Mar 10
Scandinavian Airlines Logo
7:20 pm - 10:50 am
ORD
-
BRU
32h 30m
2 stops
Scandinavian Airlines Logo
7:15 pm - 5:45 pm
BRU
-
ORD
28h 30m
1 stop
$451Scandinavian Airlines
Tue, Mar 24 - Thu, Apr 30
British Airways Logo
11:59 am - 7:45 pm
STL
-
BRU
25h 46m
2 stops
British Airways Logo
9:15 pm - 7:30 pm
BRU
-
STL
29h 15m
1 stop
$455British Airways
Sat, Apr 11 - Wed, Apr 22
Multiple Airlines Logo
4:05 pm - 7:50 am
STL
-
BRU
32h 45m
1 stop
Multiple Airlines Logo
8:30 am - 1:25 pm
BRU
-
STL
11h 55m
1 stop
$460Multiple Airlines
Wed, Feb 25 - Wed, Mar 4
American Airlines Logo
4:22 pm - 7:35 pm
EVV
-
BRU
20h 13m
2 stops
American Airlines Logo
10:25 am - 11:28 pm
BRU
-
EVV
20h 03m
2 stops
$474American Airlines
Fri, Feb 27 - Fri, Mar 6
American Airlines Logo
4:22 pm - 5:20 pm
EVV
-
BRU
17h 58m
2 stops
American Airlines Logo
11:45 am - 11:53 pm
BRU
-
EVV
19h 08m
2 stops
$499American Airlines
Wed, Mar 25 - Wed, Apr 1
Multiple Airlines Logo
8:40 pm - 3:45 pm
ORD
-
CRL
13h 05m
1 stop
Multiple Airlines Logo
9:20 am - 7:15 pm
CRL
-
ORD
16h 55m
1 stop
$547Multiple Airlines
Useful Info

Good to know

Cheapest flight$245
Flight from Chicago to Charleroi Brussels

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

Cabin classes available on flights to Brussels. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Brussels
Business Class flights to Brussels
Prem Econ Class flights to Brussels
Economy Class flights to Brussels