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

As of July 2026, there are 42 flights per week flying from Belgium to Illinois. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

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

Iberia, American Airlines, and British Airways are the most popular carriers operating from Belgium to Illinois

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

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

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 July 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.

$315 Cheap Flights from Belgium to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

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.

6:20 am - 1:25 pm

BRU

STL

14h 05m

1 stop

2:40 pm - 1:15 pm

STL

BRU

15h 35m

2 stops

$757Multiple Airlines

Sun, Aug 30 - Sat, Sep 5

6:20 am - 3:46 pm

BRU

STL

16h 26m

2 stops

12:55 pm - 7:15 am

STL

BRU

11h 20m

1 stop

$759Multiple Airlines

Thu, Aug 6 - Mon, Aug 10

6:20 am - 1:25 pm

BRU

STL

14h 05m

1 stop

12:27 pm - 7:45 am

STL

BRU

12h 18m

1 stop

$761Lufthansa

Mon, Aug 24 - Sun, Aug 30

6:20 am - 1:25 pm

BRU

STL

14h 05m

1 stop

12:27 pm - 1:40 pm

STL

BRU

18h 13m

2 stops

$765Lufthansa

Mon, Aug 24 - Sun, Aug 30

6:20 am - 1:25 pm

BRU

STL

14h 05m

1 stop

9:30 am - 7:10 am

STL

BRU

14h 40m

2 stops

$766Multiple Airlines

Mon, Aug 24 - Sun, Aug 30

6:20 am - 1:25 pm

BRU

STL

14h 05m

1 stop

12:59 pm - 9:00 am

STL

BRU

13h 01m

1 stop

$778United Airlines

Mon, Aug 24 - Sun, Aug 30

1:50 pm - 6:15 pm

BRU

ORD

11h 25m

1 stop

7:25 pm - 12:55 pm

ORD

BRU

10h 30m

1 stop

$781Icelandair

Fri, Aug 21 - Sat, Sep 12

9:45 am - 10:45 pm

BRU

MDW

20h 00m

1 stop

10:48 am - 7:40 am

MDW

BRU

13h 52m

1 stop

$782KLM

Sun, Sep 20 - Wed, Sep 30

6:10 am - 3:25 pm

BRU

ORD

15h 15m

1 stop

4:25 pm - 5:30 pm

ORD

BRU

18h 05m

1 stop

$782KLM

Sun, Oct 25 - Wed, Nov 11

10:30 am - 9:26 pm

BRU

STL

17h 56m

2 stops

7:20 am - 7:15 am

STL

BRU

16h 55m

2 stops

$783United Airlines

Thu, Aug 6 - Mon, Aug 10

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Lufthansa flights from Belgium to Illinois

Our best Lufthansa deals on Belgium to Illinois flight tickets

Lufthansa

Sep 28

BRU6:20 amBrussels Bruxelles-National

13h 35m

1 stop

ORD12:55 pmChicago O'Hare Intl

Oct 22

ORD6:00 pmChicago O'Hare Intl

8h 00m

BRU9:00 amBrussels Bruxelles-National

$785

Lufthansa

Sep 28

BRU6:20 amBrussels Bruxelles-National

13h 35m

1 stop

ORD12:55 pmChicago O'Hare Intl

Oct 22

ORD6:00 pmChicago O'Hare Intl

8h 00m

BRU9:00 amBrussels Bruxelles-National

$787

Lufthansa

Sep 1

BRU6:20 amBrussels Bruxelles-National

13h 35m

1 stop

ORD12:55 pmChicago O'Hare Intl

Sep 13

ORD9:40 pmChicago O'Hare Intl

12h 35m

1 stop

BRU5:15 pmBrussels Bruxelles-National

$788

Icelandair flights from Belgium to Illinois

Our best Icelandair deals on Belgium to Illinois flight tickets

Icelandair

Aug 21

BRU1:50 pmBrussels Bruxelles-National

11h 25m

1 stop

ORD6:15 pmChicago O'Hare Intl

Sep 12

ORD7:25 pmChicago O'Hare Intl

10h 30m

1 stop

BRU12:55 pmBrussels Bruxelles-National

$781

Icelandair

Jul 26

BRU1:50 pmBrussels Bruxelles-National

14h 35m

1 stop

ORD9:25 pmChicago O'Hare Intl

Aug 8

ORD7:25 pmChicago O'Hare Intl

10h 30m

1 stop

BRU12:55 pmBrussels Bruxelles-National

$787

Icelandair

Jul 26

BRU1:50 pmBrussels Bruxelles-National

14h 35m

1 stop

ORD9:25 pmChicago O'Hare Intl

Aug 13

ORD7:25 pmChicago O'Hare Intl

10h 30m

1 stop

BRU12:55 pmBrussels Bruxelles-National

$790

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Sun 8/30

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sat 9/5

2:40 pm-1:15 pm

2 stops15h 35m

$757

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Thu 8/6

6:20 am-3:46 pm

2 stops16h 26m

Lambert-St Louis

Mon 8/10

12:55 pm-7:15 am

1 stop11h 20m

$759

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 8/30

12:27 pm-7:45 am

1 stop12h 18m

$761

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 8/30

12:27 pm-1:40 pm

2 stops18h 13m

$765

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 8/30

9:30 am-7:10 am

2 stops14h 40m

$766

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Mon 8/24

6:20 am-1:25 pm

1 stop14h 05m

Lambert-St Louis

Sun 8/30

12:59 pm-9:00 am

1 stop13h 01m

$778

Quickest round-trip

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Fri 8/21

1:50 pm-6:15 pm

1 stop11h 25m

Chicago O'Hare Intl

Sat 9/12

7:25 pm-12:55 pm

1 stop10h 30m

$781

BrusselsChicago

BRU - MDW

BRUMDW

Brussels Bruxelles-National

Sun 9/20

9:45 am-10:45 pm

1 stop20h 00m

Chicago Midway

Wed 9/30

10:48 am-7:40 am

1 stop13h 52m

$782

BrusselsChicago

BRU - ORD

BRUORD

Brussels Bruxelles-National

Sun 10/25

6:10 am-3:25 pm

1 stop15h 15m

Chicago O'Hare Intl

Wed 11/11

4:25 pm-5:30 pm

1 stop18h 05m

$782

BrusselsSt. Louis

BRU - STL

BRUSTL

Brussels Bruxelles-National

Thu 8/6

10:30 am-9:26 pm

2 stops17h 56m

Lambert-St Louis

Mon 8/10

7:20 am-7:15 am

2 stops16h 55m

$783

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 August. Flight prices, which tend to average around $374, 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 August, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $409.

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

The cheapest day to depart from Belgium to Illinois is on a Sunday when prices can be found for as low as $822. Flights from Belgium to Illinois on a Saturday will generally be more expensive and average around $1,017. 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 from Belgium 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 $777 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 $631 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 6% 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	$822
Fastest flight time	8h 45m
Direct flights	Mon, Tue, Thu, Fri, Sat and Sun
Airports in Illinois	98 airports

The best one-way flight to Illinois from Belgium in the past 72 hours is $822. The best round-trip flight deal from Belgium to Illinois found on momondo in the last 72 hours is $810.

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

Direct flights go from Belgium to Illinois on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.

There are 98 airports in Illinois. From Belgium there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

Frequently asked questions about flying from Belgium to Illinois

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 July 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 787-10 Dreamliner, representing 77.82% of all bookings. The subsequent popular models are Boeing 787 Dreamliner at 2.69%, Airbus A330-300 at 2.42%, and Boeing 787-8 Dreamliner at 2.42%.

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 8,136 reviews		Search Lufthansa flights
United Airlines	PriceFrom $609	Free Cancellation	Rating 7.4 9,988 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.