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

Scandinavian Airlines, Aer Lingus, and Turkish Airlines are the most popular carriers operating from Illinois to Belgium

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

As of November 2025, 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.

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 November 2025. The most frequent departure time is 5:00PM, with 100% of daily flights leaving in the afternoon.

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 November 2025, there are 8 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.

$222 Cheap Flights from Illinois to Belgium in 2025/26

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Cheap round-trip flights

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7:10 am - 9:40 amORD-BRU

19h 30m2 stops

10:20 am - 4:45 pmBRU-ORD

13h 25m1 stop

$419Scandinavian Airlines

Find Deal

Sun, Dec 7 - Thu, Dec 11

10:36 am - 9:40 amORD-BRU

16h 04m2 stops

10:20 am - 4:45 pmBRU-ORD

13h 25m1 stop

$447Scandinavian Airlines

Find Deal

Wed, Feb 18 - Mon, Feb 23

7:10 pm - 11:00 amORD-BRU

32h 50m1 stop

6:00 am - 3:00 pmBRU-ORD

16h 00m1 stop

$449TAP AIR PORTUGAL

Find Deal

Wed, Feb 11 - Wed, Feb 18

6:15 pm - 3:05 pmORD-BRU

13h 50m1 stop

8:55 pm - 4:00 pmBRU-ORD

26h 05m1 stop

$455TAP AIR PORTUGAL

Find Deal

Sat, May 2 - Sat, May 16

11:22 am - 1:15 pmSTL-BRU

18h 53m2 stops

10:00 am - 7:27 pmBRU-STL

40h 27m2 stops

$480United Airlines

Find Deal

Thu, Jan 29 - Tue, Feb 3

4:05 pm - 1:15 pmSTL-BRU

14h 10m2 stops

10:00 am - 10:52 amBRU-STL

31h 52m2 stops

$482United Airlines

Find Deal

Thu, Jan 29 - Tue, Feb 3

6:30 pm - 10:20 pmORD-CRL

20h 50m2 stops

6:20 am - 5:20 pmCRL-ORD

18h 00m2 stops

$496Multiple Airlines

Find Deal

Sun, Dec 7 - Tue, Dec 16

4:05 pm - 1:15 pmSTL-BRU

14h 10m2 stops

10:00 am - 3:29 pmBRU-STL

36h 29m2 stops

$501Air Canada

Find Deal

Thu, Jan 29 - Tue, Feb 3

3:50 pm - 5:50 pmORD-BRU

19h 00m1 stop

9:10 am - 2:00 pmBRU-ORD

11h 50m1 stop

$519Multiple Airlines

Find Deal

Mon, Dec 8 - Wed, Dec 17

4:05 pm - 1:15 pmSTL-BRU

38h 10m2 stops

10:00 am - 2:18 pmBRU-STL

35h 18m2 stops

$757Air Canada

Find Deal

Fri, Jan 30 - Wed, May 27

Scandinavian Airlines flights from Illinois to Belgium

Our best Scandinavian Airlines deals on Illinois to Belgium flight tickets

Scandinavian Airlines

Dec 7

ORD7:10 amChicago O'Hare Intl

19h 30m

2 stops

BRU9:40 amBrussels Bruxelles-National

Dec 11

BRU10:20 amBrussels Bruxelles-National

13h 25m

1 stop

ORD4:45 pmChicago O'Hare Intl

$419

Find similar

Scandinavian Airlines

Feb 18

ORD10:36 amChicago O'Hare Intl

16h 04m

2 stops

BRU9:40 amBrussels Bruxelles-National

Feb 23

BRU10:20 amBrussels Bruxelles-National

13h 25m

1 stop

ORD4:45 pmChicago O'Hare Intl

$447

Find similar

Scandinavian Airlines

Jan 23

ORD7:20 pmChicago O'Hare Intl

31h 20m

1 stop

BRU9:40 amBrussels Bruxelles-National

Jan 25

BRU7:45 pmBrussels Bruxelles-National

28h 00m

2 stops

ORD4:45 pmChicago O'Hare Intl

$450

Find similar

TAP AIR PORTUGAL flights from Illinois to Belgium

Our best TAP AIR PORTUGAL deals on Illinois to Belgium flight tickets

TAP AIR PORTUGAL

Feb 11

ORD7:10 pmChicago O'Hare Intl

32h 50m

1 stop

BRU11:00 amBrussels Bruxelles-National

Feb 18

BRU6:00 amBrussels Bruxelles-National

16h 00m

1 stop

ORD3:00 pmChicago O'Hare Intl

$449

Find similar

TAP AIR PORTUGAL

May 2

ORD6:15 pmChicago O'Hare Intl

13h 50m

1 stop

BRU3:05 pmBrussels Bruxelles-National

May 16

BRU8:55 pmBrussels Bruxelles-National

26h 05m

1 stop

ORD4:00 pmChicago O'Hare Intl

$455

Find similar

TAP AIR PORTUGAL

Jan 14

ORD7:10 pmChicago O'Hare Intl

14h 55m

1 stop

BRU5:05 pmBrussels Bruxelles-National

Jan 21

BRU6:00 amBrussels Bruxelles-National

16h 00m

1 stop

ORD3:00 pmChicago O'Hare Intl

$456

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 12/7

7:10 am-9:40 am

2 stops19h 30m

Brussels Bruxelles-National

Thu 12/11

10:20 am-4:45 pm

1 stop13h 25m

$419

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 2/18

10:36 am-9:40 am

2 stops16h 04m

Brussels Bruxelles-National

Mon 2/23

10:20 am-4:45 pm

1 stop13h 25m

$447

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 2/11

7:10 pm-11:00 am

1 stop32h 50m

Brussels Bruxelles-National

Wed 2/18

6:00 am-3:00 pm

1 stop16h 00m

$449

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 5/2

6:15 pm-3:05 pm

1 stop13h 50m

Brussels Bruxelles-National

Sat 5/16

8:55 pm-4:00 pm

1 stop26h 05m

$455

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Thu 1/29

11:22 am-1:15 pm

2 stops18h 53m

Brussels Bruxelles-National

Tue 2/3

10:00 am-7:27 pm

2 stops40h 27m

$480

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Thu 1/29

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

Tue 2/3

10:00 am-10:52 am

2 stops31h 52m

$482

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Sun 12/7

6:30 pm-10:20 pm

2 stops20h 50m

Charleroi Brussels

Tue 12/16

6:20 am-5:20 pm

2 stops18h 00m

$496

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Thu 1/29

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

Tue 2/3

10:00 am-3:29 pm

2 stops36h 29m

$501

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 12/8

3:50 pm-5:50 pm

1 stop19h 00m

Brussels Bruxelles-National

Wed 12/17

9:10 am-2:00 pm

1 stop11h 50m

$519

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Fri 1/30

4:05 pm-1:15 pm

2 stops38h 10m

Brussels Bruxelles-National

Wed 5/27

10:00 am-2:18 pm

2 stops35h 18m

$757

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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, April 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 $573. If you are unable to visit Belgium during the month of April, 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 $1,106. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,400. These prices are subject to change though, so be sure to set up a Price Alert for flights to Belgium.

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

Our most recent data shows that the best time of day to fly to Belgium is in the evening. Flights from Illinois to Belgium during this time can be as low as $622. Flights to Belgium are more costly in the afternoon, with an average ticket price of $1,207. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $760 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 $486 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	$805
Fastest flight time	8h 00m
Direct flights	Every day
Airports in Belgium	1 airport

The best one-way flight to Belgium from Illinois in the past 72 hours is $805. The best round-trip flight deal from Illinois to Belgium found on momondo in the last 72 hours is $991.

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

Direct flights go from Illinois to Belgium every day.

There is 1 airport near Belgium: 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 November 2025, there are 8 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 42.06% of all bookings. The subsequent popular models are Boeing 787-10 Dreamliner at 34.27%, Boeing 787-8 Dreamliner at 4.05%, and Boeing 787-9 Dreamliner at 3.74%.

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 $310	Free Cancellation	Rating 7.4 1,568 reviews	Search Scandinavian Airlines flights
Icelandair	PriceFrom $428	Free Cancellation	Rating 7.0 574 reviews	Search Icelandair flights
Turkish Airlines	PriceFrom $492	Free Cancellation	Rating 7.3 4,035 reviews	Search Turkish Airlines flights
Aer Lingus	PriceFrom $536	Free Cancellation	Rating 7.2 1,366 reviews	Search Aer Lingus flights
British Airways	PriceFrom $551	Free Cancellation	Rating 6.7 7,506 reviews	Search British Airways flights
United Airlines	PriceFrom $639	Free Cancellation	Rating 7.4 9,012 reviews	Search United Airlines flights
Lufthansa	PriceFrom $725	Free Cancellation	Rating 6.8 7,560 reviews	Search Lufthansa flights
TAP AIR PORTUGAL	PriceFrom $744	Free Cancellation	Rating 7.1 2,055 reviews	Search TAP AIR PORTUGAL 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.

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Popular cities in Belgium

Flights to Brusselsfrom $344

Flights to Ostend

Cheap flights from Illinois to Belgium from $222

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 2/9. 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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Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from Illinois to Belgium

Cheap round-trip flights

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Scandinavian Airlines flights from Illinois to Belgium

Our best Scandinavian Airlines deals on Illinois to Belgium flight tickets

TAP AIR PORTUGAL flights from Illinois to Belgium

Our best TAP AIR PORTUGAL deals on Illinois to Belgium flight tickets

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

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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

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 time of 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, Aer Lingus, and Turkish Airlines 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 November 2025. 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 November 2025, 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