What airlines fly to Belgium?

United Airlines, Scandinavian Airlines and TAP AIR PORTUGAL 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 41% 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.

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

Aer Lingus, Turkish Airlines, and United Airlines are the most popular carriers operating from Illinois 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 June 2026. The most frequent departure time is 6:00PM, with 100% of daily flights leaving in the evening.

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

As of June 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.

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 June 2026, 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.

$321 Cheap Flights from Illinois to Belgium in 2026

Discover deals from 900+ travel sites with momondo.

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.

7:15 pm - 6:35 pm

ORD

BRU

16h 20m

1 stop

10:20 am - 4:55 pm

BRU

ORD

13h 35m

1 stop

$611Scandinavian Airlines

Tue, Dec 1 - Wed, Dec 9

7:15 pm - 6:20 pm

ORD

BRU

16h 05m

2 stops

10:20 am - 4:55 pm

BRU

ORD

13h 35m

1 stop

$615Scandinavian Airlines

Tue, Dec 1 - Wed, Dec 9

7:15 pm - 2:35 pm

ORD

BRU

12h 20m

1 stop

8:30 pm - 5:45 pm

BRU

ORD

27h 15m

1 stop

$639Scandinavian Airlines

Thu, Oct 15 - Thu, Oct 29

6:00 pm - 11:55 pm

ORD

BRU

22h 55m

1 stop

8:55 pm - 4:00 pm

BRU

ORD

26h 05m

1 stop

$685TAP AIR PORTUGAL

Wed, Sep 16 - Tue, Sep 22

6:00 pm - 11:55 pm

ORD

BRU

22h 55m

1 stop

8:55 pm - 4:00 pm

BRU

ORD

26h 05m

1 stop

$687TAP AIR PORTUGAL

Wed, Sep 16 - Tue, Sep 22

7:25 pm - 12:55 pm

ORD

BRU

10h 30m

1 stop

1:50 pm - 6:15 pm

BRU

ORD

11h 25m

1 stop

$705Icelandair

Mon, Aug 24 - Thu, Sep 3

4:15 pm - 1:15 pm

STL

BRU

14h 00m

2 stops

10:00 am - 2:18 pm

BRU

STL

35h 18m

2 stops

$758Air Canada

Mon, Nov 16 - Thu, Nov 19

9:00 pm - 8:25 am

ORD

CRL

28h 25m

1 stop

9:45 pm - 5:50 pm

CRL

ORD

27h 05m

2 stops

$766Multiple Airlines

Mon, Sep 21 - Wed, Sep 30

6:30 pm - 4:40 pm

ORD

CRL

15h 10m

2 stops

5:35 pm - 3:30 pm

CRL

ORD

28h 55m

2 stops

$780Multiple Airlines

Wed, Nov 4 - Sat, Nov 14

12:10 pm - 7:10 am

STL

BRU

12h 00m

1 stop

9:30 am - 6:42 pm

BRU

STL

16h 12m

1 stop

$824Air Canada

Sun, Aug 2 - Tue, Aug 11

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Icelandair flights from Illinois to Belgium

Our best Icelandair deals on Illinois to Belgium flight tickets

Icelandair

Aug 24

ORD7:25 pmChicago O'Hare Intl

10h 30m

1 stop

BRU12:55 pmBrussels Bruxelles-National

Sep 3

BRU1:50 pmBrussels Bruxelles-National

11h 25m

1 stop

ORD6:15 pmChicago O'Hare Intl

$775

Icelandair

Aug 24

ORD7:25 pmChicago O'Hare Intl

10h 30m

1 stop

BRU12:55 pmBrussels Bruxelles-National

Aug 30

BRU1:50 pmBrussels Bruxelles-National

11h 25m

1 stop

ORD6:15 pmChicago O'Hare Intl

$778

Icelandair

Aug 9

ORD10:25 pmChicago O'Hare Intl

31h 30m

1 stop

BRU12:55 pmBrussels Bruxelles-National

Aug 23

BRU1:50 pmBrussels Bruxelles-National

14h 35m

1 stop

ORD9:25 pmChicago O'Hare Intl

$781

Scandinavian Airlines flights from Illinois to Belgium

Our best Scandinavian Airlines deals on Illinois to Belgium flight tickets

Scandinavian Airlines

Aug 24

ORD7:15 pmChicago O'Hare Intl

12h 20m

1 stop

BRU2:35 pmBrussels Bruxelles-National

Aug 30

BRU7:00 pmBrussels Bruxelles-National

28h 10m

2 stops

ORD4:10 pmChicago O'Hare Intl

$818

Scandinavian Airlines

Aug 31

ORD7:15 pmChicago O'Hare Intl

18h 15m

2 stops

BRU8:30 pmBrussels Bruxelles-National

Sep 30

BRU5:45 amBrussels Bruxelles-National

17h 25m

1 stop

ORD4:10 pmChicago O'Hare Intl

$847

Scandinavian Airlines

Aug 31

ORD7:15 pmChicago O'Hare Intl

18h 15m

2 stops

BRU8:30 pmBrussels Bruxelles-National

Sep 30

BRU7:10 pmBrussels Bruxelles-National

28h 00m

1 stop

ORD4:10 pmChicago O'Hare Intl

$863

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 12/1

7:15 pm-6:35 pm

1 stop16h 20m

Brussels Bruxelles-National

Wed 12/9

10:20 am-4:55 pm

1 stop13h 35m

$611

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 12/1

7:15 pm-6:20 pm

2 stops16h 05m

Brussels Bruxelles-National

Wed 12/9

10:20 am-4:55 pm

1 stop13h 35m

$615

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 10/15

7:15 pm-2:35 pm

1 stop12h 20m

Brussels Bruxelles-National

Thu 10/29

8:30 pm-5:45 pm

1 stop27h 15m

$639

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 9/16

6:00 pm-11:55 pm

1 stop22h 55m

Brussels Bruxelles-National

Tue 9/22

8:55 pm-4:00 pm

1 stop26h 05m

$685

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 9/16

6:00 pm-11:55 pm

1 stop22h 55m

Brussels Bruxelles-National

Tue 9/22

8:55 pm-4:00 pm

1 stop26h 05m

$687

Quickest round-trip

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 8/24

7:25 pm-12:55 pm

1 stop10h 30m

Brussels Bruxelles-National

Thu 9/3

1:50 pm-6:15 pm

1 stop11h 25m

$705

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Mon 11/16

4:15 pm-1:15 pm

2 stops14h 00m

Brussels Bruxelles-National

Thu 11/19

10:00 am-2:18 pm

2 stops35h 18m

$758

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Mon 9/21

9:00 pm-8:25 am

1 stop28h 25m

Charleroi Brussels

Wed 9/30

9:45 pm-5:50 pm

2 stops27h 05m

$766

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Wed 11/4

6:30 pm-4:40 pm

2 stops15h 10m

Charleroi Brussels

Sat 11/14

5:35 pm-3:30 pm

2 stops28h 55m

$780

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Sun 8/2

12:10 pm-7:10 am

1 stop12h 00m

Brussels Bruxelles-National

Tue 8/11

9:30 am-6:42 pm

1 stop16h 12m

$824

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, May 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 $129. If you are unable to visit Belgium during the month of May, then departing from Illinois during the month January is also very affordable. Most momondo users find prices during this month for around $377.

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 $1,071. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,393. 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 from Illinois 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 $826 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 $565 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.

Can stopping save me money on Illinois to Belgium flights?

You could potentially save up to 60% on your flight if you consider stops on a Illinois to Belgium flight.

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	$829
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 $829. The best round-trip flight deal from Illinois to Belgium found on momondo in the last 72 hours is $1,389.

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

Frequently asked questions about flying from Illinois to Belgium

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 June 2026, 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 787-10 Dreamliner, representing 54.01% of all bookings. The subsequent popular models are Boeing 787 Dreamliner at 16.58%, Boeing 787-9 Dreamliner at 6.42%, and Boeing 787-8 Dreamliner at 4.81%.

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
Icelandair	PriceFrom $418	Free Cancellation	Rating 7.0 677 reviews	Search Icelandair flights
TAP AIR PORTUGAL	PriceFrom $444	Free Cancellation	Rating 7.2 2,280 reviews	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	PriceFrom $448	Free Cancellation	Rating 7.4 1,828 reviews	Search Scandinavian Airlines flights
Aer Lingus	PriceFrom $531	Free Cancellation	Rating 7.3 1,604 reviews	Search Aer Lingus flights
Turkish Airlines	PriceFrom $582	Free Cancellation	Rating 7.4 4,409 reviews	Search Turkish Airlines flights
United Airlines	PriceFrom $692	Free Cancellation	Rating 7.4 9,842 reviews	Search United Airlines flights
Brussels Airlines	PriceFrom $752	Free Cancellation	Rating 7.2 412 reviews	Search Brussels Airlines flights
Lufthansa	PriceFrom $969	Free Cancellation	Rating 6.8 8,066 reviews	Search Lufthansa 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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Complete your trip

Feeling lucky

Popular cities in Belgium

Flights to Brusselsfrom $519

Flights to Ostend

Cheap flights from Illinois to Belgium from $321

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 7/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Illinois to Belgium

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Cheap last minute flights

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Icelandair flights from Illinois to Belgium

Our best Icelandair deals on Illinois to Belgium flight tickets

Scandinavian Airlines flights from Illinois to Belgium

Our best Scandinavian Airlines 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?

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

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

Can stopping save me money on Illinois to Belgium flights?

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

What airlines fly to Belgium?

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

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

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

Frequently asked questions about flying 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?

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

Illinois flight routes

According to popular flight searches on momondo this year

Belgium flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Belgium

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Belgium

List of cabin classes available on flights landing in Belgium. Availability may vary depending on flight origin and airline.

Complete your trip to Belgium

Explore popular destinations other users love

According to popular flight searches on momondo this year