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Cheap flights from Belgium to Illinois from $324

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belgium to Illinois departing on 11/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Belgium to Illinois

Recent round-trip flight deals from Belgium to Illinois

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
Scandinavian Airlines Logo
7:20 pm - 7:50 pmORD-BRU
17h 30m1 stop
$522Scandinavian Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
Scandinavian Airlines Logo
10:20 am - 5:45 pmBRU-ORD
13h 25m1 stop
Scandinavian Airlines Logo
7:20 pm - 6:40 pmORD-BRU
16h 20m2 stops
$524Scandinavian Airlines
Find Deal
Fri, Oct 31 - Thu, Nov 13
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
Scandinavian Airlines Logo
7:20 pm - 9:40 amORD-BRU
31h 20m1 stop
$526Scandinavian Airlines
Find Deal
Thu, Feb 26 - Mon, Mar 2
Aer Lingus Logo
10:15 am - 5:55 pmBRU-ORD
14h 40m1 stop
Aer Lingus Logo
9:00 pm - 6:15 pmORD-BRU
14h 15m1 stop
$597Aer Lingus
Find Deal
Mon, Dec 29 - Sun, Jan 11
Aer Lingus Logo
10:15 am - 5:55 pmBRU-ORD
14h 40m1 stop
Aer Lingus Logo
9:00 pm - 6:15 pmORD-BRU
14h 15m1 stop
$628Aer Lingus
Find Deal
Mon, Dec 29 - Sat, Jan 10
Lufthansa Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
Lufthansa Logo
6:42 pm - 4:15 pmSTL-BRU
14h 33m2 stops
$653Lufthansa
Find Deal
Sun, Nov 23 - Tue, Dec 2
Lufthansa Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
Lufthansa Logo
12:31 pm - 8:55 amSTL-BRU
13h 24m1 stop
$656Lufthansa
Find Deal
Fri, Nov 7 - Tue, Nov 11
United Airlines Logo
7:00 am - 1:55 pmBRU-STL
13h 55m1 stop
United Airlines Logo
1:00 pm - 1:15 pmSTL-BRU
17h 15m2 stops
$658United Airlines
Find Deal
Wed, Nov 26 - Thu, Dec 4
United Airlines Logo
10:10 am - 7:39 pmBRU-STL
16h 29m1 stop
United Airlines Logo
6:42 pm - 8:55 amSTL-BRU
31h 13m1 stop
$668United Airlines
Find Deal
Mon, Nov 24 - Thu, Dec 4
Brussels Airlines Logo
11:55 am - 7:16 pmBRU-STL
14h 21m1 stop
Brussels Airlines Logo
12:55 pm - 7:15 amSTL-BRU
11h 20m1 stop
$1,012Brussels Airlines
Find Deal
Sun, Nov 23 - Wed, Dec 3

Scandinavian Airlines flights from Belgium to Illinois

Our best Scandinavian Airlines deals on Belgium to Illinois flight tickets
Scandinavian Airlines
Nov 10
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
Nov 17
ORD7:20 pmChicago O'Hare Intl
17h 30m
1 stop
BRU7:50 pmBrussels Bruxelles-National
$522
Find similar
Scandinavian Airlines
Oct 31
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD5:45 pmChicago O'Hare Intl
Nov 13
ORD7:20 pmChicago O'Hare Intl
16h 20m
2 stops
BRU6:40 pmBrussels Bruxelles-National
$524
Find similar
Scandinavian Airlines
Feb 26
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
Mar 2
ORD7:20 pmChicago O'Hare Intl
31h 20m
1 stop
BRU9:40 amBrussels Bruxelles-National
$526
Find similar

Aer Lingus flights from Belgium to Illinois

Our best Aer Lingus deals on Belgium to Illinois flight tickets
Aer Lingus
Dec 29
BRU10:15 amBrussels Bruxelles-National
14h 40m
1 stop
ORD5:55 pmChicago O'Hare Intl
Jan 11
ORD9:00 pmChicago O'Hare Intl
14h 15m
1 stop
BRU6:15 pmBrussels Bruxelles-National
$597
Find similar
Aer Lingus
Oct 23
BRU10:20 amBrussels Bruxelles-National
15h 40m
1 stop
ORD7:00 pmChicago O'Hare Intl
Oct 30
ORD4:50 pmChicago O'Hare Intl
10h 45m
1 stop
BRU9:35 amBrussels Bruxelles-National
$620
Find similar
Aer Lingus
Dec 29
BRU10:15 amBrussels Bruxelles-National
14h 40m
1 stop
ORD5:55 pmChicago O'Hare Intl
Jan 10
ORD9:00 pmChicago O'Hare Intl
14h 15m
1 stop
BRU6:15 pmBrussels Bruxelles-National
$628
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Belgium 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 October 16, 2025.
Use the filters below to find and compare flights from Belgium to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Mon 11/10

10:20 am-4:45 pm

1 stop13h 25m

Chicago O'Hare Intl

Mon 11/17

7:20 pm-7:50 pm

1 stop17h 30m

$522

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Fri 10/31

10:20 am-5:45 pm

1 stop13h 25m

Chicago O'Hare Intl

Thu 11/13

7:20 pm-6:40 pm

2 stops16h 20m

$524

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 2/26

10:20 am-4:45 pm

1 stop13h 25m

Chicago O'Hare Intl

Mon 3/2

7:20 pm-9:40 am

1 stop31h 20m

$526

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Mon 12/29

10:15 am-5:55 pm

1 stop14h 40m

Chicago O'Hare Intl

Sun 1/11

9:00 pm-6:15 pm

1 stop14h 15m

$597

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Mon 12/29

10:15 am-5:55 pm

1 stop14h 40m

Chicago O'Hare Intl

Sat 1/10

9:00 pm-6:15 pm

1 stop14h 15m

$628

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sun 11/23

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Tue 12/2

6:42 pm-4:15 pm

2 stops14h 33m

$653

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 11/7

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Tue 11/11

12:31 pm-8:55 am

1 stop13h 24m

$656

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Wed 11/26

7:00 am-1:55 pm

1 stop13h 55m

Lambert-St Louis

Thu 12/4

1:00 pm-1:15 pm

2 stops17h 15m

$658

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 11/24

10:10 am-7:39 pm

1 stop16h 29m

Lambert-St Louis

Thu 12/4

6:42 pm-8:55 am

1 stop31h 13m

$668

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sun 11/23

11:55 am-7:16 pm

1 stop14h 21m

Lambert-St Louis

Wed 12/3

12:55 pm-7:15 am

1 stop11h 20m

$1,012

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 Belgium 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 Belgium 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 Belgium to Illinois is on a Wednesday when prices can be found for as low as $728. Flights from Belgium to Illinois on a Monday will generally be more expensive and average around $808. 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 Belgium 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 Belgium to Illinois flight route?

Fly from Brussels Bruxelles-National to Chicago O'Hare Intl for the best Belgium - 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 Belgium when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $651 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Belgium for as low as $570 on momondo.

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

There are 3 cabin classes available to choose from on Belgium 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 Belgium to Illinois flights?

You could potentially save up to 42% on your flight if you consider stops on a Belgium to Illinois flight.

Cheap Belgium to Illinois flight deals and tips

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

Best Price Found

$575

Fastest flight time

8h 50m

Direct flights

Every day

Airports in Illinois

1 airport
The best one-way flight to Illinois from Belgium in the past 72 hours is $575. The best round-trip flight deal from Belgium to Illinois found on momondo in the last 72 hours is $602.
The fastest flight from Belgium to Illinois takes 8h 50m
Direct flights go from Belgium 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 Belgium to Illinois?

    Prices for flights from Belgium to Illinois refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belgium to Illinois.

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

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Belgium to Illinois?

Best airlines flying from Belgium to Illinois

Compare and see reviews for airlines that fly from Belgium to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Brussels AirlinesPriceFrom $521Free CancellationRating
7.2
365 reviews
Search Brussels Airlines flights
LufthansaPriceFrom $521Free CancellationRating
6.8
7,494 reviews
Search Lufthansa flights
United AirlinesPriceFrom $568Free CancellationRating
7.4
8,980 reviews
Search United Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Belgium.

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

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

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

Once all potential Belgium to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Illinois from Belgium. 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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