What airlines fly to Brussels Bruxelles-National Airport?

United Airlines, Scandinavian Airlines and Icelandair are the top three most popular airlines that fly to Brussels Bruxelles-National Airport 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 Brussels Bruxelles-National Airport. Keep in mind that there are 8 different airlines that fly to Brussels Bruxelles-National Airport on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Illinois to Brussels Bruxelles-National?

Scandinavian Airlines, Aer Lingus, and Turkish Airlines are the most popular carriers operating from Illinois to Brussels Bruxelles-National

How many operators does momondo search for flights from Illinois to Brussels Bruxelles-National Airport?

As of November 2025, there are 8 operators available to choose from for flights from Illinois to Brussels Bruxelles-National Airport.

How old do you have to be to fly from Illinois to Brussels Bruxelles-National Airport?

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 Brussels Bruxelles-National Airport.

What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?

The travel and health documents you'll need for your trip to Brussels Bruxelles-National Airport 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 Brussels Bruxelles-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$222 Cheap Flights from Illinois to Brussels Bruxelles-National Airport in 2025/26

Q: How many flights depart from Illinois to Brussels Bruxelles-National Airport on average per week?

As of November 2025, 35 flights take off from Illinois and land in Brussels Bruxelles-National Airport each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

Q: How many flights depart from Illinois to Brussels Bruxelles-National Airport on average per day?

The number of flights available between Illinois and Brussels Bruxelles-National Airport 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.

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 Brussels

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

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

3:50 pm - 9:35 amORD-BRU

10h 45m1 stop

9:50 am - 5:55 pmBRU-ORD

15h 05m1 stop

$524Multiple Airlines

Find Deal

Sun, Dec 7 - Tue, Dec 16

4:05 pm - 1:15 pmSTL-BRU

38h 10m2 stops

10:00 am - 12:20 pmBRU-STL

33h 20m2 stops

$757Air Canada

Find Deal

Fri, Jan 30 - Tue, May 26

Scandinavian Airlines flights from Illinois to Brussels Bruxelles-National Airport

Our best Scandinavian Airlines deals on Illinois to Brussels Bruxelles-National Airport 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 Brussels Bruxelles-National Airport

Our best TAP AIR PORTUGAL deals on Illinois to Brussels Bruxelles-National Airport 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

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to Brussels Bruxelles-National Airport that are best for you.

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

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

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 12/7

3:50 pm-9:35 am

1 stop10h 45m

Brussels Bruxelles-National

Tue 12/16

9:50 am-5:55 pm

1 stop15h 05m

$524

St. LouisBrussels

STL - BRU

STLBRU

Lambert-St Louis

Fri 1/30

4:05 pm-1:15 pm

2 stops38h 10m

Brussels Bruxelles-National

Tue 5/26

10:00 am-12:20 pm

2 stops33h 20m

$757

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 Brussels Bruxelles-National Airport

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 Brussels Bruxelles-National Airport?

The cheapest month to fly to Brussels Bruxelles-National Airport from Illinois is in April. Flight prices, which tend to average around $573, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of April, then book flights to Brussels Bruxelles-National Airport from Illinois during October instead. Flights to Brussels Bruxelles-National Airport in October, while not as cheap as those in April, still average around $600.

What is the cheapest day to depart on your flight to Brussels Bruxelles-National Airport?

The cheapest day to depart from Illinois to Brussels Bruxelles-National Airport is on a Tuesday. Travelers who choose to depart for Brussels Bruxelles-National Airport on a Tuesday will often find tickets for as low as $1,106. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Brussels Bruxelles-National Airport for around $1,400.

What is the cheapest time of day to depart on your flight to Brussels Bruxelles-National Airport?

Our most recent data shows that the best time of day to fly to Brussels Bruxelles-National Airport is in the evening. Flights from Illinois to Brussels Bruxelles-National Airport during this time can be as low as $579. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,208 on average. Flights to Brussels Bruxelles-National Airport from Illinois in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to Brussels Bruxelles-National flight route?

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

How far in advance should I book a flight to Brussels Bruxelles-National Airport?

You are more likely to see cheaper flights to Brussels Bruxelles-National Airport from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels Bruxelles-National Airport for around $760 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels Bruxelles-National Airport from Illinois for as low as $486 on momondo.

What cabin class options are available on Illinois to Brussels Bruxelles-National flights?

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

Cheap Illinois to Brussels Bruxelles-National Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Brussels Bruxelles-National Airport

Best Price Found	$805
Fastest flight time	8h 00m
Direct flights	Every day

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

The fastest flight from Illinois to Brussels Bruxelles-National Airport takes 8h 00m

Direct flights go from Illinois to Brussels Bruxelles-National Airport every day.

Search flight deals

When did momondo last update prices for flights from Illinois to Brussels Bruxelles-National Airport?
Prices for flights from Illinois to Brussels Bruxelles-National Airport were last updated today.
How many operators does momondo search for flights from Illinois to Brussels Bruxelles-National Airport?
As of November 2025, there are 8 operators available to choose from for flights from Illinois to Brussels Bruxelles-National Airport.
How old do you have to be to fly from Illinois to Brussels Bruxelles-National Airport?
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 Brussels Bruxelles-National Airport.
What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?
The travel and health documents you'll need for your trip to Brussels Bruxelles-National Airport 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 Brussels Bruxelles-National Airport. 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 Brussels Bruxelles-National Airport?
Based on momondo bookings for flights between Illinois and Brussels Bruxelles-National Airport, the leading plane model is Boeing 787 Dreamliner, making up 42.06% of the total bookings. Other popular models include Boeing 787-10 Dreamliner with 34.27%, Boeing 787-8 Dreamliner with 4.05%, and Boeing 787-9 Dreamliner with 3.74%.

Best airlines flying from Illinois to Brussels Bruxelles-National Airport

Compare and see reviews for airlines that fly from Illinois to Brussels Bruxelles-National Airport 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

Ghent

Bruges

Leuven

Charleroi

Hasselt

Spa

Zaventem

Namur

Dinant

Mons

Genk

Waterloo

Mechelen

Durbuy

Francorchamps

Knokke-Heist

Aalst

Tournai

Oostkamp

Halle

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Brussels for you.

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

Yes. momondo allows you to filter the results for Illinois to Brussels flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Brussels.

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

If you are simply researching potential flights to Brussels, momondo offers a useful price alert feature which will track prices for flights to Brussels from Illinois and alert you when they change.

An easier way to manage your Brussels Bruxelles-National Airport 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

Wed 12/10

Wed 12/17

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 Brussels

Popular cities in Belgium

Flights to Charleroi Brussels Airportfrom $449

Brussels Bruxelles-National Airport flight routes

Flights from New York John F Kennedy Intl to Brussels Bruxelles-National

Flights from Washington, D.C. Dulles Intl to Brussels Bruxelles-National

Flights from Newark to Brussels Bruxelles-National

Flights from London Heathrow to Brussels Bruxelles-National

Flights from Kinshasa N'djili to Brussels Bruxelles-National

Cheap flights from Illinois to Brussels 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 Brussels 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.

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 Brussels

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Scandinavian Airlines flights from Illinois to Brussels Bruxelles-National Airport

Our best Scandinavian Airlines deals on Illinois to Brussels Bruxelles-National Airport flight tickets

TAP AIR PORTUGAL flights from Illinois to Brussels Bruxelles-National Airport

Our best TAP AIR PORTUGAL deals on Illinois to Brussels Bruxelles-National Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to Brussels Bruxelles-National Airport that are best for you.

See travel insights to Brussels from

How to get the cheapest flight ticket from Illinois to Brussels Bruxelles-National Airport

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 Brussels Bruxelles-National Airport?

What is the cheapest day to depart on your flight to Brussels Bruxelles-National Airport?

What is the cheapest time of day to depart on your flight to Brussels Bruxelles-National Airport?

What is the cheapest Illinois to Brussels Bruxelles-National flight route?

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

How far in advance should I book a flight to Brussels Bruxelles-National Airport?

What cabin class options are available on Illinois to Brussels Bruxelles-National flights?

There are 3 cabin classes available to choose from on Illinois to Brussels Bruxelles-National 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 Brussels Bruxelles-National?

Scandinavian Airlines, Aer Lingus, and Turkish Airlines are the most popular carriers operating from Illinois to Brussels Bruxelles-National

What airlines fly to Brussels Bruxelles-National Airport?

How many flights depart from Illinois to Brussels Bruxelles-National Airport on average per day?

The number of flights available between Illinois and Brussels Bruxelles-National Airport 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 Brussels Bruxelles-National Airport on average per week?

As of November 2025, 35 flights take off from Illinois and land in Brussels Bruxelles-National Airport 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 Brussels Bruxelles-National Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Brussels Bruxelles-National Airport

Best Price Found

Fastest flight time

Direct flights

When did momondo last update prices for flights from Illinois to Brussels Bruxelles-National Airport?

How many operators does momondo search for flights from Illinois to Brussels Bruxelles-National Airport?

How old do you have to be to fly from Illinois to Brussels Bruxelles-National Airport?

What documentation or ID do you need to fly to Brussels Bruxelles-National Airport?

What is the most popular plane model from Illinois to Brussels Bruxelles-National Airport?

Best airlines flying from Illinois to Brussels Bruxelles-National Airport

Compare and see reviews for airlines that fly from Illinois to Brussels Bruxelles-National Airport with momondo

Traveling to a place near Brussels?

Why use momondo?

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

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

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

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

An easier way to manage your Brussels Bruxelles-National Airport 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 Brussels

Popular cities in Belgium

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