What is the cheapest airline that flies from Belgium to Illinois?

Lufthansa is the most popular carrier operating from Belgium to Illinois

How many flights depart from Belgium to Illinois on average per day?

3 flights are operational daily from Belgium to Illinois as of March 2026. The most popular departure time for this route is 10:00AM, with 100% of flights per day taking off at noon.

How many flights depart from Belgium to Illinois on average per week?

As of March 2026, there are 24 flights per week flying from Belgium to Illinois. The most common day of the week flights depart is Wed, with 25% of flights taking off on this day.

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?

There are 2 operators available for flights from Belgium to Illinois as of March 2026.

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.

$299 Cheap Flights from Belgium to Illinois in 2026

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Find the cheapest flights from Belgium to Illinois

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Belgium to Illinois

Enter your travel dates to find the best prices.

8:55 pm - 4:00 pm

BRU

ORD

26h 05m

1 stop

6:00 pm - 8:05 pm

ORD

BRU

19h 05m

1 stop

$505TAP AIR PORTUGAL

Tue, Apr 14 - Sun, Apr 26

8:55 pm - 4:00 pm

BRU

ORD

26h 05m

1 stop

6:05 pm - 8:05 pm

ORD

BRU

19h 00m

1 stop

$510TAP AIR PORTUGAL

Tue, Mar 31 - Sat, Apr 11

8:15 pm - 1:10 pm

BRU

ORD

47h 55m

2 stops

3:00 pm - 10:45 am

ORD

BRU

12h 45m

1 stop

$565ITA Airways

Thu, May 21 - Wed, Oct 14

6:55 pm - 1:10 pm

BRU

ORD

25h 15m

1 stop

8:55 am - 6:00 pm

ORD

BRU

26h 05m

2 stops

$592ITA Airways

Tue, Sep 1 - Tue, Sep 15

6:20 am - 8:25 am

CRL

ORD

32h 05m

3 stops

7:25 pm - 10:55 pm

ORD

CRL

20h 30m

2 stops

$631Multiple Airlines

Tue, Mar 24 - Sun, Apr 19

5:35 pm - 4:00 pm

CRL

ORD

29h 25m

2 stops

7:25 pm - 10:55 pm

ORD

CRL

20h 30m

2 stops

$666Multiple Airlines

Sat, Apr 18 - Sun, May 3

8:30 am - 1:25 pm

BRU

STL

11h 55m

1 stop

12:15 pm - 7:15 am

STL

BRU

12h 00m

1 stop

$670Lufthansa

Fri, Apr 17 - Tue, Apr 21

8:30 am - 3:48 pm

BRU

STL

14h 18m

2 stops

12:15 pm - 7:15 am

STL

BRU

12h 00m

1 stop

$672Lufthansa

Fri, Apr 17 - Tue, Apr 21

7:00 am - 1:25 pm

BRU

STL

13h 25m

1 stop

6:15 am - 7:45 am

STL

BRU

18h 30m

1 stop

$680United Airlines

Fri, Apr 17 - Tue, Apr 21

8:30 am - 1:25 pm

BRU

STL

11h 55m

1 stop

6:15 am - 7:10 am

STL

BRU

17h 55m

2 stops

$683United Airlines

Fri, Apr 17 - Tue, Apr 21

Scandinavian Airlines flights from Belgium to Illinois

Our best Scandinavian Airlines deals on Belgium to Illinois flight tickets

Scandinavian Airlines

Apr 16

BRU3:15 pmBrussels Bruxelles-National

31h 55m

1 stop

ORD4:10 pmChicago O'Hare Intl

Apr 20

ORD7:15 pmChicago O'Hare Intl

12h 20m

1 stop

BRU2:35 pmBrussels Bruxelles-National

$672

Scandinavian Airlines

Apr 16

BRU9:30 pmBrussels Bruxelles-National

25h 40m

2 stops

ORD4:10 pmChicago O'Hare Intl

Apr 29

ORD7:15 pmChicago O'Hare Intl

12h 20m

1 stop

BRU2:35 pmBrussels Bruxelles-National

$673

Scandinavian Airlines

Apr 16

BRU9:30 pmBrussels Bruxelles-National

25h 40m

2 stops

ORD4:10 pmChicago O'Hare Intl

Apr 29

ORD7:15 pmChicago O'Hare Intl

16h 00m

2 stops

BRU6:15 pmBrussels Bruxelles-National

$677

ITA Airways flights from Belgium to Illinois

Our best ITA Airways deals on Belgium to Illinois flight tickets

ITA Airways

Sep 1

BRU6:55 pmBrussels Bruxelles-National

25h 15m

1 stop

ORD1:10 pmChicago O'Hare Intl

Sep 15

ORD8:55 amChicago O'Hare Intl

26h 05m

2 stops

BRU6:00 pmBrussels Bruxelles-National

$592

ITA Airways

Aug 30

BRU6:55 pmBrussels Bruxelles-National

30h 38m

2 stops

ORD6:33 pmChicago O'Hare Intl

Sep 15

ORD8:55 amChicago O'Hare Intl

18h 50m

2 stops

BRU10:45 amBrussels Bruxelles-National

$597

ITA Airways

Jun 22

BRU6:05 pmBrussels Bruxelles-National

26h 05m

1 stop

ORD1:10 pmChicago O'Hare Intl

Jul 7

ORD3:00 pmChicago O'Hare Intl

12h 45m

1 stop

BRU10:45 amBrussels Bruxelles-National

$629

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Tue 4/14

8:55 pm-4:00 pm

1 stop26h 05m

Chicago O'Hare Intl

Sun 4/26

6:00 pm-8:05 pm

1 stop19h 05m

$505

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Tue 3/31

8:55 pm-4:00 pm

1 stop26h 05m

Chicago O'Hare Intl

Sat 4/11

6:05 pm-8:05 pm

1 stop19h 00m

$510

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Thu 5/21

8:15 pm-1:10 pm

2 stops47h 55m

Chicago O'Hare Intl

Wed 10/14

3:00 pm-10:45 am

1 stop12h 45m

$565

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Tue 9/1

6:55 pm-1:10 pm

1 stop25h 15m

Chicago O'Hare Intl

Tue 9/15

8:55 am-6:00 pm

2 stops26h 05m

$592

BrusselsChicago

CRL - ORD

CRLORD

Charleroi Brussels

Tue 3/24

6:20 am-8:25 am

3 stops32h 05m

Chicago O'Hare Intl

Sun 4/19

7:25 pm-10:55 pm

2 stops20h 30m

$631

BrusselsChicago

CRL - ORD

CRLORD

Charleroi Brussels

Sat 4/18

5:35 pm-4:00 pm

2 stops29h 25m

Chicago O'Hare Intl

Sun 5/3

7:25 pm-10:55 pm

2 stops20h 30m

$666

Quickest round-trip

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

8:30 am-1:25 pm

1 stop11h 55m

Lambert-St Louis

Tue 4/21

12:15 pm-7:15 am

1 stop12h 00m

$670

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

8:30 am-3:48 pm

2 stops14h 18m

Lambert-St Louis

Tue 4/21

12:15 pm-7:15 am

1 stop12h 00m

$672

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

7:00 am-1:25 pm

1 stop13h 25m

Lambert-St Louis

Tue 4/21

6:15 am-7:45 am

1 stop18h 30m

$680

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Fri 4/17

8:30 am-1:25 pm

1 stop11h 55m

Lambert-St Louis

Tue 4/21

6:15 am-7:10 am

2 stops17h 55m

$683

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Belgium is in September. Flight prices, which tend to average around $559, 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 September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $559.

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

The cheapest day to depart from Belgium to Illinois is on a Thursday when prices can be found for as low as $740. Flights from Belgium to Illinois on a Saturday will generally be more expensive and average around $846. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 $691 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 $586 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 16% 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	$1,031
Fastest flight time	8h 45m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Belgium in the past 72 hours is $1,031. The best round-trip flight deal from Belgium to Illinois found on momondo in the last 72 hours is $794.

The fastest flight from Belgium to Illinois takes 8h 45m

Direct flights go from Belgium to Illinois every day.

There are 98 airports in Illinois. From Belgium there are direct flights to 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?
There are 2 operators available for flights from Belgium to Illinois as of March 2026.
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?
momondo data reveals that the most frequently booked plane model on the route from Belgium to Illinois is Boeing 787 Dreamliner, representing 47.45% of all bookings. The subsequent popular models are Boeing 787-10 Dreamliner at 27.39%, Airbus A330-300 at 4.30%, and Boeing 777-300ER at 3.18%.

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
Lufthansa	PriceFrom $521	Free Cancellation	Rating 6.8 7,828 reviews		Search Lufthansa flights
United Airlines	PriceFrom $568	Free Cancellation	Rating 7.4 9,397 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.