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Cheap flights from Brussels to Illinois from $343

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Brussels to Illinois departing on 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Brussels to Illinois

Cheap round-trip flights

Scandinavian Airlines Logo
11:30 am - 4:45 pmBRU-ORD
36h 15m2 stops
Scandinavian Airlines Logo
7:20 pm - 10:50 amORD-BRU
32h 30m2 stops
$452Scandinavian Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 19
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
Scandinavian Airlines Logo
7:20 pm - 2:30 pmORD-BRU
12h 10m1 stop
$454Scandinavian Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 19
Scandinavian Airlines Logo
11:30 am - 4:45 pmBRU-ORD
36h 15m2 stops
Scandinavian Airlines Logo
7:20 pm - 9:40 amORD-BRU
31h 20m1 stop
$455Scandinavian Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 19
Lufthansa Logo
2:25 pm - 7:55 pmBRU-ORD
12h 30m1 stop
Lufthansa Logo
5:55 pm - 9:00 amORD-BRU
8h 05mnonstop
$495Lufthansa
Find Deal
Thu, Aug 21 - Wed, Sep 3
Lufthansa Logo
8:30 am - 12:55 pmBRU-ORD
11h 25m1 stop
Lufthansa Logo
5:55 pm - 9:00 amORD-BRU
8h 05mnonstop
$497Lufthansa
Find Deal
Mon, Sep 15 - Tue, Sep 30
Brussels Airlines Logo
10:15 am - 12:05 pmBRU-ORD
8h 50mnonstop
Brussels Airlines Logo
6:00 pm - 1:15 pmORD-BRU
12h 15m1 stop
$498Brussels Airlines
Find Deal
Thu, Sep 11 - Thu, Sep 25
United Airlines Logo
10:15 am - 11:55 amBRU-ORD
8h 40mnonstop
United Airlines Logo
5:55 pm - 9:00 amORD-BRU
8h 05mnonstop
$505United Airlines
Find Deal
Sat, Aug 16 - Sun, Aug 31
United Airlines Logo
10:15 am - 11:55 amBRU-ORD
8h 40mnonstop
United Airlines Logo
11:40 am - 7:15 amORD-BRU
12h 35m1 stop
$508United Airlines
Find Deal
Sat, Aug 16 - Sun, Aug 31
Aer Lingus Logo
10:20 am - 9:53 pmBRU-STL
18h 33m2 stops
Aer Lingus Logo
7:23 am - 9:40 amSTL-BRU
19h 17m2 stops
$839Aer Lingus
Find Deal
Tue, Sep 9 - Mon, Sep 29
Aer Lingus Logo
9:20 pm - 11:48 pmBRU-STL
33h 28m2 stops
Aer Lingus Logo
7:23 am - 9:40 amSTL-BRU
19h 17m2 stops
$883Aer Lingus
Find Deal
Sun, Sep 7 - Wed, Oct 1

Scandinavian Airlines flights from Brussels to Illinois

Our best Scandinavian Airlines deals on Brussels to Illinois flight tickets
Scandinavian Airlines
Nov 5
BRU11:30 amBrussels Bruxelles-National
36h 15m
2 stops
ORD4:45 pmChicago O'Hare Intl
Nov 19
ORD7:20 pmChicago O'Hare Intl
32h 30m
2 stops
BRU10:50 amBrussels Bruxelles-National
$452
Find similar
Scandinavian Airlines
Nov 5
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
Nov 19
ORD7:20 pmChicago O'Hare Intl
12h 10m
1 stop
BRU2:30 pmBrussels Bruxelles-National
$454
Find similar
Scandinavian Airlines
Nov 5
BRU11:30 amBrussels Bruxelles-National
36h 15m
2 stops
ORD4:45 pmChicago O'Hare Intl
Nov 19
ORD7:20 pmChicago O'Hare Intl
31h 20m
1 stop
BRU9:40 amBrussels Bruxelles-National
$455
Find similar

Lufthansa flights from Brussels to Illinois

Our best Lufthansa deals on Brussels to Illinois flight tickets
Lufthansa
Aug 21
BRU2:25 pmBrussels Bruxelles-National
12h 30m
1 stop
ORD7:55 pmChicago O'Hare Intl
Sep 3
ORD5:55 pmChicago O'Hare Intl
8h 05m
BRU9:00 amBrussels Bruxelles-National
$495
Find similar
Lufthansa
Aug 16
BRU9:30 amBrussels Bruxelles-National
12h 25m
1 stop
ORD2:55 pmChicago O'Hare Intl
Aug 31
ORD5:55 pmChicago O'Hare Intl
8h 05m
BRU9:00 amBrussels Bruxelles-National
$497
Find similar
Lufthansa
Aug 16
BRU10:15 amBrussels Bruxelles-National
8h 40m
ORD11:55 amChicago O'Hare Intl
Aug 31
ORD5:55 pmChicago O'Hare Intl
8h 05m
BRU9:00 amBrussels Bruxelles-National
$501
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Brussels to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 2, 2025.
Use the filters below to find and compare flights from Brussels to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Wed 11/5

11:30 am-4:45 pm

2 stops36h 15m

Chicago O'Hare Intl

Wed 11/19

7:20 pm-10:50 am

2 stops32h 30m

$452

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Wed 11/5

10:20 am-4:45 pm

1 stop13h 25m

Chicago O'Hare Intl

Wed 11/19

7:20 pm-2:30 pm

1 stop12h 10m

$454

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Wed 11/5

11:30 am-4:45 pm

2 stops36h 15m

Chicago O'Hare Intl

Wed 11/19

7:20 pm-9:40 am

1 stop31h 20m

$455

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 8/21

2:25 pm-7:55 pm

1 stop12h 30m

Chicago O'Hare Intl

Wed 9/3

5:55 pm-9:00 am

Nonstop8h 05m

$495

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Mon 9/15

8:30 am-12:55 pm

1 stop11h 25m

Chicago O'Hare Intl

Tue 9/30

5:55 pm-9:00 am

Nonstop8h 05m

$497

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 9/11

10:15 am-12:05 pm

Nonstop8h 50m

Chicago O'Hare Intl

Thu 9/25

6:00 pm-1:15 pm

1 stop12h 15m

$498

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sat 8/16

10:15 am-11:55 am

Nonstop8h 40m

Chicago O'Hare Intl

Sun 8/31

5:55 pm-9:00 am

Nonstop8h 05m

$505

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sat 8/16

10:15 am-11:55 am

Nonstop8h 40m

Chicago O'Hare Intl

Sun 8/31

11:40 am-7:15 am

1 stop12h 35m

$508

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Tue 9/9

10:20 am-9:53 pm

2 stops18h 33m

Lambert-St Louis

Mon 9/29

7:23 am-9:40 am

2 stops19h 17m

$839

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sun 9/7

9:20 pm-11:48 pm

2 stops33h 28m

Lambert-St Louis

Wed 10/1

7:23 am-9:40 am

2 stops19h 17m

$883

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Brussels to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Brussels is in February. Flight prices, which tend to average around $526, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $591.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Brussels to Illinois is on a Thursday when prices can be found for as low as $744. Flights from Brussels to Illinois on a Monday will generally be more expensive and average around $828. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Brussels to Illinois during this time can be as low as $583. Flights at noon are often more expensive with an average ticket price of $800.

What is the cheapest Brussels to Illinois flight route?

Fly from Brussels Bruxelles-National to Chicago O'Hare Intl for the best Brussels - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Brussels when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $664 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Brussels for as low as $577 on momondo.

What cabin class options are available on Brussels to Illinois flights?

There are 3 cabin classes available to choose from on Brussels to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Brussels to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Brussels to Illinois

Best Price Found

$343

Fastest flight time

8h 40m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from Brussels in the past 72 hours is $343. The best round-trip flight deal from Brussels to Illinois found on momondo in the last 72 hours is $452.
The fastest flight from Brussels to Illinois takes 8h 40m
Direct flights go from Brussels to Illinois every day.
There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)
Search flight deals

  • When did momondo last update prices for flights from Brussels to Illinois?

    Prices for flights from Brussels to Illinois were last updated today.

  • How many operators does momondo search for flights from Brussels to Illinois?

  • How old do you have to be to fly from Brussels to Illinois?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Brussels to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Brussels to Illinois

Compare and see reviews for airlines that fly from Brussels to Illinois with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $576Free CancellationRating
7.4
8,905 reviews
Search United Airlines flights
LufthansaPriceFrom $579Free CancellationRating
6.8
7,280 reviews
Search Lufthansa flights
Brussels AirlinesPriceFrom $585Free CancellationRating
7.2
350 reviews
Search Brussels Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Brussels to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Brussels to Illinois. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Brussels to Illinois with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Brussels to Illinois flights to just show those with flexible booking policies.

How can momondo help me find flights from Brussels to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Brussels.

I’m not ready to book a flight from Brussels to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Brussels to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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