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

The number of flights available between Illinois and Belgium is 5 per day as of January 2026. The most frequent departure time is 5:00PM, with 100% of daily flights leaving in the afternoon.

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

Scandinavian Airlines, United Airlines, and Air Canada are the most popular carriers operating from Illinois to Belgium

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

As of January 2026, 35 flights take off from Illinois and land in Belgium each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

What airlines fly to Belgium?

United Airlines, Scandinavian Airlines and Icelandair are the top three most popular airlines that fly to Belgium from Illinois according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Belgium. Keep in mind that there are 8 different airlines that fly to Belgium on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Illinois to Belgium?

Prices for flights from Illinois to Belgium are refreshed on a daily basis.

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

As of January 2026, there are 9 operators available to choose from for flights from Illinois to Belgium.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Belgium.

What documentation or ID do you need to fly to Belgium?

The travel and health documents you'll need for your trip to Belgium may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belgium. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$261 Cheap Flights from Illinois to Belgium in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Illinois to Belgium

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 pm - 8:05 pm

ORD

BRU

19h 05m

1 stop

5:55 am - 4:15 pm

BRU

ORD

17h 20m

1 stop

$440TAP AIR PORTUGAL

vie., may. 1 - sáb., may. 16

6:00 pm - 3:05 pm

ORD

BRU

14h 05m

1 stop

5:55 am - 4:00 pm

BRU

ORD

17h 05m

1 stop

$441TAP AIR PORTUGAL

vie., abr. 24 - mié., may. 6

7:15 pm - 6:30 pm

ORD

BRU

16h 15m

1 stop

5:45 am - 4:10 pm

BRU

ORD

17h 25m

1 stop

$459Scandinavian Airlines

lun., abr. 13 - mié., abr. 22

8:20 pm - 2:30 pm

ORD

BRU

12h 10m

1 stop

10:20 am - 5:45 pm

BRU

ORD

13h 25m

1 stop

$463Scandinavian Airlines

dom., mar. 8 - mié., mar. 11

7:41 am - 8:55 am

STL

BRU

18h 14m

1 stop

10:00 am - 2:42 pm

BRU

STL

34h 42m

2 stops

$489United Airlines

dom., mar. 1 - mié., mar. 11

7:40 am - 7:50 am

STL

BRU

18h 10m

2 stops

10:00 am - 2:42 pm

BRU

STL

34h 42m

2 stops

$493Air Canada

mié., mar. 18 - mié., mar. 25

5:00 am - 1:15 pm

PAH

BRU

25h 15m

2 stops

10:10 am - 1:27 pm

BRU

PAH

34h 17m

1 stop

$502United Airlines

mié., feb. 25 - dom., mar. 1

4:05 pm - 1:15 pm

STL

BRU

14h 10m

2 stops

10:00 am - 9:05 pm

BRU

STL

18h 05m

2 stops

$513Air Canada

mié., feb. 25 - dom., mar. 1

9:00 pm - 9:25 pm

ORD

CRL

17h 25m

1 stop

9:50 am - 7:15 pm

CRL

ORD

16h 25m

1 stop

$538Multiple Airlines

dom., abr. 5 - vie., abr. 10

6:50 pm - 8:55 pm

ORD

CRL

19h 05m

2 stops

12:50 pm - 1:25 pm

CRL

ORD

31h 35m

2 stops

$650Multiple Airlines

mié., feb. 25 - mié., mar. 4

United Airlines flights from Illinois to Belgium

Our best United Airlines deals on Illinois to Belgium flight tickets

United Airlines

Mar 1

STL7:41 amLambert-St Louis

18h 14m

1 stop

BRU8:55 amBrussels Bruxelles-National

Mar 11

BRU10:00 amBrussels Bruxelles-National

34h 42m

2 stops

STL2:42 pmLambert-St Louis

$489

United Airlines

Feb 25

PAH5:00 amPaducah Barkley Regional

25h 15m

2 stops

BRU1:15 pmBrussels Bruxelles-National

Mar 1

BRU10:10 amBrussels Bruxelles-National

34h 17m

1 stop

PAH1:27 pmPaducah Barkley Regional

$502

United Airlines

Feb 25

PAH2:05 pmPaducah Barkley Regional

40h 10m

2 stops

BRU1:15 pmBrussels Bruxelles-National

Mar 1

BRU10:00 amBrussels Bruxelles-National

34h 27m

2 stops

PAH1:27 pmPaducah Barkley Regional

$505

Air Canada flights from Illinois to Belgium

Our best Air Canada deals on Illinois to Belgium flight tickets

Air Canada

Mar 18

STL7:40 amLambert-St Louis

18h 10m

2 stops

BRU7:50 amBrussels Bruxelles-National

Mar 25

BRU10:00 amBrussels Bruxelles-National

34h 42m

2 stops

STL2:42 pmLambert-St Louis

$493

Air Canada

Feb 25

STL4:05 pmLambert-St Louis

14h 10m

2 stops

BRU1:15 pmBrussels Bruxelles-National

Mar 1

BRU10:00 amBrussels Bruxelles-National

18h 05m

2 stops

STL9:05 pmLambert-St Louis

$513

Air Canada

Feb 10

STL4:05 pmLambert-St Louis

33h 50m

2 stops

BRU8:55 amBrussels Bruxelles-National

Feb 24

BRU10:00 amBrussels Bruxelles-National

43h 59m

2 stops

STL10:59 pmLambert-St Louis

$690

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

vie. 5/1

6:00 pm-8:05 pm

1 stop19h 05m

Brussels Bruxelles-National

sáb. 5/16

5:55 am-4:15 pm

1 stop17h 20m

$440

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

vie. 4/24

6:00 pm-3:05 pm

1 stop14h 05m

Brussels Bruxelles-National

mié. 5/6

5:55 am-4:00 pm

1 stop17h 05m

$441

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

lun. 4/13

7:15 pm-6:30 pm

1 stop16h 15m

Brussels Bruxelles-National

mié. 4/22

5:45 am-4:10 pm

1 stop17h 25m

$459

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

dom. 3/8

8:20 pm-2:30 pm

1 stop12h 10m

Brussels Bruxelles-National

mié. 3/11

10:20 am-5:45 pm

1 stop13h 25m

$463

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

dom. 3/1

7:41 am-8:55 am

1 stop18h 14m

Brussels Bruxelles-National

mié. 3/11

10:00 am-2:42 pm

2 stops34h 42m

$489

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

mié. 3/18

7:40 am-7:50 am

2 stops18h 10m

Brussels Bruxelles-National

mié. 3/25

10:00 am-2:42 pm

2 stops34h 42m

$493

PaducahBrussels

PAH - BRU

PAHBRU

Paducah Barkley Regional

mié. 2/25

5:00 am-1:15 pm

2 stops25h 15m

Brussels Bruxelles-National

dom. 3/1

10:10 am-1:27 pm

1 stop34h 17m

$502

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

mié. 2/25

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

dom. 3/1

10:00 am-9:05 pm

2 stops18h 05m

$513

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

dom. 4/5

9:00 pm-9:25 pm

1 stop17h 25m

Charleroi Brussels

vie. 4/10

9:50 am-7:15 pm

1 stop16h 25m

$538

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

mié. 2/25

6:50 pm-8:55 pm

2 stops19h 05m

Charleroi Brussels

mié. 3/4

12:50 pm-1:25 pm

2 stops31h 35m

$650

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 Illinois to Belgium

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 Belgium?

In general, September is the cheapest month to fly from Illinois to Belgium. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $578. If you are unable to visit Belgium during the month of September, then departing from Illinois during the month October is also very affordable. Most momondo users find prices during this month for around $600.

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

Our data shows that Tuesday is the least expensive day to fly to Belgium. Tickets to fly out on this day can be as low as $1,067. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,347. These prices are subject to change though, so be sure to set up a Price Alert for flights to Belgium.

What is the cheapest Illinois to Belgium flight route?

Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Illinois - Belgium flight prices

How far in advance should I book a flight to Belgium?

You are more likely to see cheaper flights to Belgium from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Belgium for around $764 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belgium from Illinois for as low as $500 on momondo.

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

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

Cheap Illinois to Belgium flight deals and tips

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

Best Price Found	$658
Fastest flight time	8h 00m
Direct flights	Every day
Airports in Belgium	32 airports

The best one-way flight to Belgium from Illinois in the past 72 hours is $658. The best round-trip flight deal from Illinois to Belgium found on momondo in the last 72 hours is $944.

The fastest flight from Illinois to Belgium takes 8h 00m

Direct flights go from Illinois to Belgium every day.

There are 32 airports in Belgium. From Illinois there are direct flights to Brussels Bruxelles-National (BRU).

Search flight deals

When did momondo last update prices for flights from Illinois to Belgium?
Prices for flights from Illinois to Belgium are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Belgium?
As of January 2026, there are 9 operators available to choose from for flights from Illinois to Belgium.
How old do you have to be to fly from Illinois to Belgium?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Belgium.
What documentation or ID do you need to fly to Belgium?
The travel and health documents you'll need for your trip to Belgium may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belgium. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to Belgium?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Belgium is Boeing 787 Dreamliner, representing 46.52% of all bookings. The subsequent popular models are Boeing 787-10 Dreamliner at 26.01%, Boeing 787-9 Dreamliner at 4.40%, and Airbus A330-300 at 4.40%.

Best airlines flying from Illinois to Belgium

Compare and see reviews for airlines that fly from Illinois to Belgium with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom $293	Free Cancellation	Rating 7.3 1,674 reviews	Search Scandinavian Airlines flights
Icelandair	PriceFrom $428	Free Cancellation	Rating 7.1 606 reviews	Search Icelandair flights
TAP AIR PORTUGAL	PriceFrom $445	Free Cancellation	Rating 7.1 2,130 reviews	Search TAP AIR PORTUGAL flights
Turkish Airlines	PriceFrom $492	Free Cancellation	Rating 7.3 4,208 reviews	Search Turkish Airlines flights
Aer Lingus	PriceFrom $531	Free Cancellation	Rating 7.2 1,443 reviews	Search Aer Lingus flights
British Airways	PriceFrom $551	Free Cancellation	Rating 6.7 7,705 reviews	Search British Airways flights
United Airlines	PriceFrom $590	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
Brussels Airlines	PriceFrom $752	Free Cancellation	Rating 7.2 381 reviews	Search Brussels Airlines flights

Why use momondo?

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

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 Belgium from Illinois.

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

momondo does allow users to show only those flights to Belgium from Illinois which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Illinois to Belgium flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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

An easier way to manage your Belgium trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

sáb. 2/28

sáb. 3/7

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Belgium

Popular cities in Belgium

Flights to Brusselsfrom $355

Flights to Ostend

Cheap flights from Illinois to Belgium from $261

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Belgium departing on 4/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Illinois to Belgium

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

United Airlines flights from Illinois to Belgium

Our best United Airlines deals on Illinois to Belgium flight tickets

Air Canada flights from Illinois to Belgium

Our best Air Canada deals on Illinois to Belgium flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to Belgium that are best for you.

See travel insights to Belgium from

How to get the cheapest flight ticket from Illinois to Belgium

What is the cheapest month to fly to Belgium?

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

What is the cheapest Illinois to Belgium flight route?

Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Illinois - Belgium flight prices

How far in advance should I book a flight to Belgium?

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

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

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

Scandinavian Airlines, United Airlines, and Air Canada are the most popular carriers operating from Illinois to Belgium

What airlines fly to Belgium?

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

The number of flights available between Illinois and Belgium is 5 per day as of January 2026. The most frequent departure time is 5:00PM, with 100% of daily flights leaving in the afternoon.

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

As of January 2026, 35 flights take off from Illinois and land in Belgium each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

Cheap Illinois to Belgium flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Belgium

When did momondo last update prices for flights from Illinois to Belgium?

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

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

What documentation or ID do you need to fly to Belgium?

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

Best airlines flying from Illinois to Belgium

Compare and see reviews for airlines that fly from Illinois to Belgium with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Belgium trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Belgium

Popular cities in Belgium

Popular flights according to clicks in the last 7 days on momondo