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Cheap flights from Brussels Bruxelles-National Airport to Illinois from $359

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 Bruxelles-National Airport to Illinois departing on 12/11. 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 Bruxelles-National Airport to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:25 am - 5:20 pmBRU-ORD
14h 55m2 stops
Multiple Airlines Logo
6:30 pm - 5:50 pmORD-BRU
16h 20m2 stops
$533Multiple Airlines
Find Deal
jue., dic. 4 - lun., dic. 8
Aer Lingus Logo
10:15 am - 5:55 pmBRU-ORD
14h 40m1 stop
Aer Lingus Logo
7:40 pm - 6:15 pmORD-BRU
15h 35m1 stop
$539Aer Lingus
Find Deal
mar., dic. 2 - mar., dic. 9
Scandinavian Airlines Logo
7:20 pm - 5:45 pmBRU-ORD
28h 25m2 stops
Scandinavian Airlines Logo
8:20 pm - 11:55 amORD-BRU
33h 35m2 stops
$541Scandinavian Airlines
Find Deal
mar., mar. 17 - vie., mar. 20
Icelandair Logo
12:50 pm - 5:20 pmBRU-ORD
11h 30m1 stop
Icelandair Logo
7:25 pm - 12:50 pmORD-BRU
10h 25m1 stop
$616Icelandair
Find Deal
vie., mar. 6 - jue., abr. 23
Lufthansa Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
Lufthansa Logo
11:35 am - 8:05 amSTL-BRU
13h 30m1 stop
$627Lufthansa
Find Deal
vie., nov. 21 - mar., nov. 25
Lufthansa Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
Lufthansa Logo
12:31 pm - 8:55 amSTL-BRU
13h 24m1 stop
$630Lufthansa
Find Deal
vie., nov. 21 - mar., nov. 25
United Airlines Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
United Airlines Logo
6:30 am - 7:50 amSTL-BRU
18h 20m2 stops
$649United Airlines
Find Deal
mié., dic. 3 - dom., dic. 7
United Airlines Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
United Airlines Logo
10:00 am - 7:50 amSTL-BRU
14h 50m2 stops
$650United Airlines
Find Deal
mié., dic. 3 - dom., dic. 7
American Airlines Logo
11:50 am - 10:50 amBRU-STL
30h 00m2 stops
American Airlines Logo
2:54 pm - 11:10 amSTL-BRU
13h 16m2 stops
$661American Airlines
Find Deal
mié., dic. 31 - lun., ene. 12
American Airlines Logo
3:00 pm - 3:36 pmBRU-STL
31h 36m2 stops
American Airlines Logo
12:06 pm - 1:40 pmSTL-BRU
18h 34m2 stops
$708American Airlines
Find Deal
vie., ene. 9 - sáb., ene. 17

Scandinavian Airlines flights from Brussels Bruxelles-National Airport to Illinois

Our best Scandinavian Airlines deals on Brussels Bruxelles-National Airport to Illinois flight tickets
Scandinavian Airlines
Mar 17
BRU7:20 pmBrussels Bruxelles-National
28h 25m
2 stops
ORD5:45 pmChicago O'Hare Intl
Mar 20
ORD8:20 pmChicago O'Hare Intl
33h 35m
2 stops
BRU11:55 amBrussels Bruxelles-National
$541
Find similar
Scandinavian Airlines
Apr 18
BRU10:20 amBrussels Bruxelles-National
12h 50m
1 stop
ORD4:10 pmChicago O'Hare Intl
May 2
ORD7:15 pmChicago O'Hare Intl
12h 20m
1 stop
BRU2:35 pmBrussels Bruxelles-National
$545
Find similar
Scandinavian Airlines
Dec 21
BRU3:10 pmBrussels Bruxelles-National
32h 35m
1 stop
ORD4:45 pmChicago O'Hare Intl
Dec 31
ORD7:20 pmChicago O'Hare Intl
16h 20m
2 stops
BRU6:40 pmBrussels Bruxelles-National
$546
Find similar

Air Canada flights from Brussels Bruxelles-National Airport to Illinois

Our best Air Canada deals on Brussels Bruxelles-National Airport to Illinois flight tickets
Air Canada
Nov 23
BRU10:00 amBrussels Bruxelles-National
14h 39m
2 stops
STL5:39 pmLambert-St Louis
Dec 2
STL6:42 pmLambert-St Louis
30h 08m
2 stops
BRU7:50 amBrussels Bruxelles-National
$624
Find similar
Air Canada
Nov 23
BRU10:00 amBrussels Bruxelles-National
16h 39m
2 stops
STL7:39 pmLambert-St Louis
Dec 2
STL4:05 pmLambert-St Louis
14h 10m
2 stops
BRU1:15 pmBrussels Bruxelles-National
$625
Find similar
Air Canada
Jan 21
BRU2:25 pmBrussels Bruxelles-National
32h 04m
2 stops
STL3:29 pmLambert-St Louis
Jan 30
STL9:57 amLambert-St Louis
14h 53m
2 stops
BRU7:50 amBrussels Bruxelles-National
$657
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Brussels Bruxelles-National Airport 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 noviembre 5, 2025.
Use the filters below to find and compare flights from Brussels Bruxelles-National Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

jue. 12/4

9:25 am-5:20 pm

2 stops14h 55m

Chicago O'Hare Intl

lun. 12/8

6:30 pm-5:50 pm

2 stops16h 20m

$533

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

mar. 12/2

10:15 am-5:55 pm

1 stop14h 40m

Chicago O'Hare Intl

mar. 12/9

7:40 pm-6:15 pm

1 stop15h 35m

$539

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

mar. 3/17

7:20 pm-5:45 pm

2 stops28h 25m

Chicago O'Hare Intl

vie. 3/20

8:20 pm-11:55 am

2 stops33h 35m

$541

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

vie. 3/6

12:50 pm-5:20 pm

1 stop11h 30m

Chicago O'Hare Intl

jue. 4/23

7:25 pm-12:50 pm

1 stop10h 25m

$616

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

vie. 11/21

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

mar. 11/25

11:35 am-8:05 am

1 stop13h 30m

$627

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

vie. 11/21

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

mar. 11/25

12:31 pm-8:55 am

1 stop13h 24m

$630

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

mié. 12/3

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

dom. 12/7

6:30 am-7:50 am

2 stops18h 20m

$649

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

mié. 12/3

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

dom. 12/7

10:00 am-7:50 am

2 stops14h 50m

$650

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

mié. 12/31

11:50 am-10:50 am

2 stops30h 00m

Lambert-St Louis

lun. 1/12

2:54 pm-11:10 am

2 stops13h 16m

$661

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

vie. 1/9

3:00 pm-3:36 pm

2 stops31h 36m

Lambert-St Louis

sáb. 1/17

12:06 pm-1:40 pm

2 stops18h 34m

$708

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 Bruxelles-National Airport 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 Bruxelles-National Airport is in February. Flight prices, which tend to average around $527, 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 September is also cheap. Prices for this month can be found on momondo for an average of $536.

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

The cheapest day to depart from Brussels Bruxelles-National Airport to Illinois is on a Thursday when prices can be found for as low as $728. Flights from Brussels Bruxelles-National Airport to Illinois on a Wednesday will generally be more expensive and average around $800. 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 Bruxelles-National Airport 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 Bruxelles-National to Illinois flight route?

Fly from Brussels Bruxelles-National to Chicago O'Hare Intl for the best Brussels Bruxelles-National - 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 Bruxelles-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $654 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Brussels Bruxelles-National Airport for as low as $580 on momondo.

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

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

Can stopping save me money on Brussels Bruxelles-National Airport to Illinois flights?

You could potentially save up to 42% on your flight if you consider stops on a Brussels Bruxelles-National Airport to Illinois flight.

Cheap Brussels Bruxelles-National Airport to Illinois flight deals and tips

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

Best Price Found

$789

Fastest flight time

8h 45m

Direct flights

Every day

Airports in Illinois

1 airport
The best one-way flight to Illinois from Brussels Bruxelles-National Airport in the past 72 hours is $789. The best round-trip flight deal from Brussels Bruxelles-National Airport to Illinois found on momondo in the last 72 hours is $804.
The fastest flight from Brussels Bruxelles-National Airport to Illinois takes 8h 45m
Direct flights go from Brussels Bruxelles-National Airport to Illinois every day.
There is 1 airport near Illinois: Chicago O'Hare Intl (ORD)
Search flight deals

  • When did momondo last update prices for flights from Brussels Bruxelles-National Airport to Illinois?

    Prices for flights from Brussels Bruxelles-National Airport to Illinois are updated daily.

  • How many operators does momondo search for flights from Brussels Bruxelles-National Airport to Illinois?

  • How old do you have to be to fly from Brussels Bruxelles-National Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Brussels Bruxelles-National Airport to Illinois.

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

    The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Brussels Bruxelles-National Airport to Illinois?

Best airlines flying from Brussels Bruxelles-National Airport to Illinois

Compare and see reviews for airlines that fly from Brussels Bruxelles-National Airport to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Brussels AirlinesPriceFrom $521Free CancellationRating
7.2
369 reviews
Search Brussels Airlines flights
LufthansaPriceFrom $521Free CancellationRating
6.8
7,555 reviews
Search Lufthansa flights
United AirlinesPriceFrom $568Free CancellationRating
7.4
9,004 reviews
Search United Airlines flights

Why use momondo?

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

It is quick and easy to find Brussels to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

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

All flight searches from Brussels to Illinois on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Brussels to Illinois.

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

Yes momondo offers price alerts on flights to Illinois from Brussels. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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