What airlines fly to Belgium?

Scandinavian Airlines, United Airlines and Aer Lingus are the top three most popular airlines that fly to Belgium from Illinois according to our data. Scandinavian Airlines is the first choice among our users, with 38% 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.

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

As of August 2025, 25 flights take off from Illinois and land in Belgium each week. The most common flight departure day for this route is Mon, with 20% 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 3 per day as of August 2025. 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?

TAP AIR PORTUGAL, Scandinavian Airlines, and British Airways are the most popular carriers operating 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 August 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.

$284 Cheap Flights from Illinois to Belgium in 2025

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Find the cheapest flights from Illinois to Belgium

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:20 pm - 11:55 amORD-BRU

33h 35m2 stops

10:20 am - 4:45 pmBRU-ORD

13h 25m1 stop

$440Scandinavian Airlines

Find Deal

Fri, Nov 28 - Mon, Dec 8

7:20 pm - 11:55 amORD-BRU

33h 35m2 stops

8:30 pm - 4:45 pmBRU-ORD

27h 15m1 stop

$441Scandinavian Airlines

Find Deal

Fri, Nov 28 - Sun, Dec 7

9:15 am - 9:00 pmSTL-BRU

28h 45m2 stops

10:25 pm - 7:38 pmBRU-STL

28h 13m2 stops

$576

Find Deal

Tue, Oct 14 - Mon, Oct 20

7:00 am - 8:05 amSTL-BRU

18h 05m1 stop

10:00 am - 2:25 pmBRU-STL

35h 25m2 stops

$583

Find Deal

Wed, Nov 12 - Thu, Nov 27

4:05 pm - 1:15 pmSTL-BRU

38h 10m2 stops

10:00 am - 12:28 pmBRU-STL

33h 28m2 stops

$588Air Canada

Find Deal

Wed, Nov 19 - Wed, Nov 26

11:49 am - 8:05 amSTL-BRU

13h 16m1 stop

10:00 am - 5:39 pmBRU-STL

14h 39m2 stops

$606United Airlines

Find Deal

Wed, Nov 19 - Wed, Nov 26

12:31 pm - 8:55 amSTL-BRU

13h 24m1 stop

10:00 am - 2:25 pmBRU-STL

35h 25m2 stops

$633United Airlines

Find Deal

Fri, Nov 7 - Thu, Nov 13

4:05 pm - 1:15 pmSTL-BRU

14h 10m2 stops

10:00 am - 5:39 pmBRU-STL

38h 39m2 stops

$638Air Canada

Find Deal

Fri, Nov 7 - Fri, Nov 14

3:23 pm - 3:25 pmSTL-BRU

17h 02m2 stops

8:45 pm - 4:40 pmBRU-STL

26h 55m2 stops

$681British Airways

Find Deal

Fri, Nov 14 - Mon, Nov 24

5:09 pm - 5:45 pmSTL-BRU

17h 36m2 stops

9:15 pm - 4:04 pmBRU-STL

25h 49m2 stops

$699British Airways

Find Deal

Tue, Oct 14 - Mon, Oct 20

Air Canada flights from Illinois to Belgium

Our best Air Canada deals on Illinois to Belgium flight tickets

Air Canada

Nov 19

STL4:05 pmLambert-St Louis

38h 10m

2 stops

BRU1:15 pmBrussels Bruxelles-National

Nov 26

BRU10:00 amBrussels Bruxelles-National

33h 28m

2 stops

STL12:28 pmLambert-St Louis

$588

Find similar

Air Canada

Aug 10

STL1:30 pmLambert-St Louis

11h 30m

1 stop

BRU8:00 amBrussels Bruxelles-National

Aug 26

BRU10:00 amBrussels Bruxelles-National

35h 33m

2 stops

STL2:33 pmLambert-St Louis

$628

Find similar

Air Canada

Aug 11

STL1:30 pmLambert-St Louis

16h 45m

2 stops

BRU1:15 pmBrussels Bruxelles-National

Aug 26

BRU10:00 amBrussels Bruxelles-National

36h 44m

2 stops

STL3:44 pmLambert-St Louis

$632

Find similar

United Airlines flights from Illinois to Belgium

Our best United Airlines deals on Illinois to Belgium flight tickets

United Airlines

Nov 19

STL11:49 amLambert-St Louis

13h 16m

1 stop

BRU8:05 amBrussels Bruxelles-National

Nov 26

BRU10:00 amBrussels Bruxelles-National

14h 39m

2 stops

STL5:39 pmLambert-St Louis

$606

Find similar

United Airlines

Nov 7

STL12:31 pmLambert-St Louis

13h 24m

1 stop

BRU8:55 amBrussels Bruxelles-National

Nov 13

BRU10:00 amBrussels Bruxelles-National

35h 25m

2 stops

STL2:25 pmLambert-St Louis

$633

Find similar

United Airlines

Nov 7

STL1:10 pmLambert-St Louis

11h 05m

1 stop

BRU7:15 amBrussels Bruxelles-National

Nov 14

BRU10:10 amBrussels Bruxelles-National

16h 29m

1 stop

STL7:39 pmLambert-St Louis

$656

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 11/28

7:20 pm-11:55 am

2 stops33h 35m

Brussels Bruxelles-National

Mon 12/8

10:20 am-4:45 pm

1 stop13h 25m

$440

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 11/28

7:20 pm-11:55 am

2 stops33h 35m

Brussels Bruxelles-National

Sun 12/7

8:30 pm-4:45 pm

1 stop27h 15m

$441

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Tue 10/14

9:15 am-9:00 pm

2 stops28h 45m

Brussels Bruxelles-National

Mon 10/20

10:25 pm-7:38 pm

2 stops28h 13m

$576

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 11/12

7:00 am-8:05 am

1 stop18h 05m

Brussels Bruxelles-National

Thu 11/27

10:00 am-2:25 pm

2 stops35h 25m

$583

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 11/19

4:05 pm-1:15 pm

2 stops38h 10m

Brussels Bruxelles-National

Wed 11/26

10:00 am-12:28 pm

2 stops33h 28m

$588

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Wed 11/19

11:49 am-8:05 am

1 stop13h 16m

Brussels Bruxelles-National

Wed 11/26

10:00 am-5:39 pm

2 stops14h 39m

$606

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Fri 11/7

12:31 pm-8:55 am

1 stop13h 24m

Brussels Bruxelles-National

Thu 11/13

10:00 am-2:25 pm

2 stops35h 25m

$633

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Fri 11/7

4:05 pm-1:15 pm

2 stops14h 10m

Brussels Bruxelles-National

Fri 11/14

10:00 am-5:39 pm

2 stops38h 39m

$638

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Fri 11/14

3:23 pm-3:25 pm

2 stops17h 02m

Brussels Bruxelles-National

Mon 11/24

8:45 pm-4:40 pm

2 stops26h 55m

$681

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Tue 10/14

5:09 pm-5:45 pm

2 stops17h 36m

Brussels Bruxelles-National

Mon 10/20

9:15 pm-4:04 pm

2 stops25h 49m

$699

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, October 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 $566. If you are unable to visit Belgium during the month of October, then departing from Illinois during the month April is also very affordable. Most momondo users find prices during this month for around $576.

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

Our data shows that Wednesday 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 $1,303. 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 $1,175. 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 $789 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 $597 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	$284
Fastest flight time	8h 00m
Direct flights	Every day
Airports in Belgium	2 airports

The best one-way flight to Belgium from Illinois in the past 72 hours is $284. The best round-trip flight deal from Illinois to Belgium found on momondo in the last 72 hours is $440.

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

Direct flights go from Illinois to Belgium every day.

There are 2 airports near Belgium: Brussels Bruxelles-National (BRU), Charleroi Brussels (CRL)

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 August 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 42.02% of all bookings. The subsequent popular models are Boeing 787-10 Dreamliner at 36.15%, Boeing 787-8 Dreamliner at 7.04%, and Airbus A330 at 2.82%.

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 $313	Free Cancellation	Rating 7.4 1,463 reviews	Search Scandinavian Airlines flights
Icelandair	PriceFrom $405	Free Cancellation	Rating 7.0 524 reviews	Search Icelandair flights
Turkish Airlines	PriceFrom $492	Free Cancellation	Rating 7.3 3,932 reviews	Search Turkish Airlines flights
KLM	PriceFrom $506	Free Cancellation	Rating 7.8 1,381 reviews	Search KLM flights
Aer Lingus	PriceFrom $536	Free Cancellation	Rating 7.1 1,201 reviews	Search Aer Lingus flights
TAP AIR PORTUGAL	PriceFrom $542	Free Cancellation	Rating 7.1 1,942 reviews	Search TAP AIR PORTUGAL flights
United Airlines	PriceFrom $590	Free Cancellation	Rating 7.4 8,917 reviews	Search United Airlines flights
Lufthansa	PriceFrom $728	Free Cancellation	Rating 6.8 7,289 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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Find better results for your trip to Belgium

Popular cities in Belgium

Flights to Brusselsfrom $357

Flights to Ostend

Cheap flights from Illinois to Belgium from $284

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 10/31. 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

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Price Alerts

Find the cheapest flights from Illinois to Belgium

Cheap round-trip flights

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Cheap last minute flights

Cheap direct flights

Air Canada flights from Illinois to Belgium

Our best Air Canada deals on Illinois to Belgium flight tickets

United Airlines flights from Illinois to Belgium

Our best United Airlines 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?

TAP AIR PORTUGAL, Scandinavian Airlines, and British Airways 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 3 per day as of August 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 August 2025, 25 flights take off from Illinois and land in Belgium each week. The most common flight departure day for this route is Mon, with 20% 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