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Cheap flights from Brussels Bruxelles-National Airport to Illinois from $404

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 1/14. 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.
Scandinavian Airlines Logo
3:10 pm - 4:55 pm
BRU
-
ORD
32h 45m1 stop
Scandinavian Airlines Logo
7:20 pm - 10:50 am
ORD
-
BRU
32h 30m2 stops
$496Scandinavian Airlines
Wed, Jan 28 - Wed, Feb 4
Scandinavian Airlines Logo
7:20 pm - 4:55 pm
BRU
-
ORD
28h 35m2 stops
Scandinavian Airlines Logo
7:20 pm - 10:50 am
ORD
-
BRU
32h 30m2 stops
$497Scandinavian Airlines
Wed, Jan 28 - Wed, Feb 4
Scandinavian Airlines Logo
3:10 pm - 4:45 pm
BRU
-
ORD
32h 35m1 stop
Scandinavian Airlines Logo
7:20 pm - 11:55 am
ORD
-
BRU
57h 35m2 stops
$498Scandinavian Airlines
Sun, Feb 22 - Thu, Feb 26
Multiple Airlines Logo
11:55 am - 7:27 pm
BRU
-
STL
14h 32m1 stop
Multiple Airlines Logo
11:22 am - 10:10 am
STL
-
BRU
15h 48m2 stops
$675Multiple Airlines
Sat, Jan 24 - Sat, Jan 31
Lufthansa Logo
7:00 am - 11:59 pm
BRU
-
STL
23h 59m2 stops
Lufthansa Logo
1:15 pm - 12:35 pm
STL
-
BRU
16h 20m2 stops
$690Lufthansa
Sat, Jan 24 - Sat, Jan 31
United Airlines Logo
7:00 am - 8:23 pm
BRU
-
STL
20h 23m2 stops
United Airlines Logo
3:15 pm - 1:15 pm
STL
-
BRU
15h 00m2 stops
$691United Airlines
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
10:30 am - 7:14 pm
BRU
-
STL
15h 44m2 stops
United Airlines Logo
11:25 am - 8:55 am
STL
-
BRU
14h 30m1 stop
$692United Airlines
Thu, Feb 19 - Mon, Feb 23
Delta Logo
10:00 am - 10:29 pm
BRU
-
MDW
18h 29m1 stop
Delta Logo
12:47 pm - 8:00 am
MDW
-
BRU
13h 13m1 stop
$697Delta
Mon, Mar 16 - Fri, Mar 27
Delta Logo
8:05 am - 6:37 pm
BRU
-
MDW
17h 32m2 stops
Delta Logo
10:35 am - 7:40 am
MDW
-
BRU
14h 05m1 stop
$699Delta
Fri, Mar 6 - Sun, Apr 26
Multiple Airlines Logo
9:40 am - 3:29 pm
BRU
-
STL
36h 49m2 stops
Multiple Airlines Logo
4:05 pm - 1:15 pm
STL
-
BRU
14h 10m2 stops
$727Multiple Airlines
Wed, Jan 7 - Sat, Jan 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
Jan 28
BRU3:10 pmBrussels Bruxelles-National
32h 45m
1 stop
ORD4:55 pmChicago O'Hare Intl
Feb 4
ORD7:20 pmChicago O'Hare Intl
32h 30m
2 stops
BRU10:50 amBrussels Bruxelles-National
$496
Find similar
Scandinavian Airlines
Jan 28
BRU7:20 pmBrussels Bruxelles-National
28h 35m
2 stops
ORD4:55 pmChicago O'Hare Intl
Feb 4
ORD7:20 pmChicago O'Hare Intl
32h 30m
2 stops
BRU10:50 amBrussels Bruxelles-National
$497
Find similar
Scandinavian Airlines
Jan 15
BRU3:10 pmBrussels Bruxelles-National
32h 35m
1 stop
ORD4:45 pmChicago O'Hare Intl
Jan 28
ORD7:20 pmChicago O'Hare Intl
31h 20m
1 stop
BRU9:40 amBrussels Bruxelles-National
$498
Find similar

TAP AIR PORTUGAL flights from Brussels Bruxelles-National Airport to Illinois

Our best TAP AIR PORTUGAL deals on Brussels Bruxelles-National Airport to Illinois flight tickets
TAP AIR PORTUGAL
Dec 25
BRU5:55 pmBrussels Bruxelles-National
28h 30m
1 stop
ORD3:25 pmChicago O'Hare Intl
Jan 16
ORD8:15 pmChicago O'Hare Intl
13h 50m
1 stop
BRU5:05 pmBrussels Bruxelles-National
$575
Find similar
TAP AIR PORTUGAL
Dec 26
BRU6:00 amBrussels Bruxelles-National
16h 25m
1 stop
ORD3:25 pmChicago O'Hare Intl
Jan 14
ORD7:10 pmChicago O'Hare Intl
21h 40m
1 stop
BRU11:50 pmBrussels Bruxelles-National
$590
Find similar
TAP AIR PORTUGAL
Dec 26
BRU6:00 amBrussels Bruxelles-National
16h 25m
1 stop
ORD3:25 pmChicago O'Hare Intl
Jan 16
ORD8:15 pmChicago O'Hare Intl
13h 50m
1 stop
BRU5:05 pmBrussels Bruxelles-National
$611
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 December 15, 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

Wed 1/28

3:10 pm-4:55 pm

1 stop32h 45m

Chicago O'Hare Intl

Wed 2/4

7:20 pm-10:50 am

2 stops32h 30m

$496

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Wed 1/28

7:20 pm-4:55 pm

2 stops28h 35m

Chicago O'Hare Intl

Wed 2/4

7:20 pm-10:50 am

2 stops32h 30m

$497

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sun 2/22

3:10 pm-4:45 pm

1 stop32h 35m

Chicago O'Hare Intl

Thu 2/26

7:20 pm-11:55 am

2 stops57h 35m

$498

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sat 1/24

11:55 am-7:27 pm

1 stop14h 32m

Lambert-St Louis

Sat 1/31

11:22 am-10:10 am

2 stops15h 48m

$675

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sat 1/24

7:00 am-11:59 pm

2 stops23h 59m

Lambert-St Louis

Sat 1/31

1:15 pm-12:35 pm

2 stops16h 20m

$690

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Thu 2/19

7:00 am-8:23 pm

2 stops20h 23m

Lambert-St Louis

Mon 2/23

3:15 pm-1:15 pm

2 stops15h 00m

$691

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Thu 2/19

10:30 am-7:14 pm

2 stops15h 44m

Lambert-St Louis

Mon 2/23

11:25 am-8:55 am

1 stop14h 30m

$692

BrusselsChicago

BRU - MDW

BRUMDW

Brussels Bruxelles-National

Mon 3/16

10:00 am-10:29 pm

1 stop18h 29m

Chicago Midway

Fri 3/27

12:47 pm-8:00 am

1 stop13h 13m

$697

BrusselsChicago

BRU - MDW

BRUMDW

Brussels Bruxelles-National

Fri 3/6

8:05 am-6:37 pm

2 stops17h 32m

Chicago Midway

Sun 4/26

10:35 am-7:40 am

1 stop14h 05m

$699

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 1/7

9:40 am-3:29 pm

2 stops36h 49m

Lambert-St Louis

Sat 1/17

4:05 pm-1:15 pm

2 stops14h 10m

$727

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 $528, 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 $546.

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 $725. Flights from Brussels Bruxelles-National Airport to Illinois on a Saturday will generally be more expensive and average around $832. 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 $656 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 $604 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 33% 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

$769

Fastest flight time

8h 45m

Direct flights

Every day

Airports in Illinois

98 airports
The best flight deal from Brussels Bruxelles-National Airport to Illinois found on momondo in the last 72 hours is $769
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 are 98 airports in Illinois. From Brussels Bruxelles-National Airport there are direct flights to 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
375 reviews
Search Brussels Airlines flights
LufthansaPriceFrom $521Free CancellationRating
6.8
7,628 reviews
Search Lufthansa flights
United AirlinesPriceFrom $568Free CancellationRating
7.4
9,092 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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