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Cheap flights from Illinois to Brussels from $237

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 10/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Brussels

Cheap round-trip flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
1:20 pm - 9:35 am-
13h 15m
Aer Lingus Logo
10:15 am - 8:00 pm-
16h 45m
$510Aer Lingus
Fri, Jan 22 - Fri, Jan 29
Icelandair Logo
6:30 pm - 11:55 am-
10h 25m
Icelandair Logo
12:50 pm - 5:20 pm-
11h 30m
$549Icelandair
Wed, Dec 9 - Sun, Dec 20
Icelandair Logo
7:30 pm - 11:55 am-
10h 25m
Icelandair Logo
12:50 pm - 5:20 pm-
11h 30m
$552Icelandair
Sat, Oct 31 - Sun, Nov 8
Turkish Airlines Logo
8:10 pm - 9:25 pm-
18h 15m
Turkish Airlines Logo
2:55 pm - 9:40 am-
25h 45m
$690Turkish Airlines
Wed, Sep 16 - Wed, Sep 23
TAP AIR PORTUGAL Logo
7:00 pm - 5:05 pm-
15h 05m
TAP AIR PORTUGAL Logo
6:00 am - 3:30 pm-
16h 30m
$697TAP AIR PORTUGAL
Wed, Dec 2 - Wed, Dec 9
TAP AIR PORTUGAL Logo
6:00 pm - 8:05 pm-
19h 05m
TAP AIR PORTUGAL Logo
5:55 pm - 4:30 pm-
28h 35m
$698TAP AIR PORTUGAL
Thu, Oct 15 - Tue, Oct 27
Multiple Airlines Logo
7:25 pm - 12:55 pm-
10h 30m
Multiple Airlines Logo
7:35 pm - 6:15 pm-
29h 40m
$701Multiple Airlines
Sat, Oct 3 - Sun, Oct 18
Multiple Airlines Logo
7:25 pm - 12:55 pm-
10h 30m
Multiple Airlines Logo
7:35 pm - 6:15 pm-
29h 40m
$705Multiple Airlines
Sat, Oct 10 - Wed, Oct 21
Turkish Airlines Logo
8:10 pm - 9:25 pm-
18h 15m
Turkish Airlines Logo
2:55 pm - 9:40 am-
25h 45m
$707Turkish Airlines
Wed, Sep 16 - Wed, Sep 23
Aer Lingus Logo
1:20 pm - 9:35 am-
13h 15m
Aer Lingus Logo
10:15 am - 7:15 pm-
16h 00m
$798Aer Lingus
Fri, Jan 22 - Fri, Jan 29

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Turkish Airlines flights from Illinois to Brussels Bruxelles-National Airport

Our best Turkish Airlines deals on Illinois to Brussels Bruxelles-National Airport flight tickets
Turkish Airlines
Sep 16
ORD8:10 pmChicago O'Hare Intl
18h 15m
1 stop
BRU9:25 pmBrussels Bruxelles-National
Sep 23
BRU2:55 pmBrussels Bruxelles-National
25h 45m
1 stop
ORD9:40 amChicago O'Hare Intl
$690
Turkish Airlines
Sep 16
ORD8:10 pmChicago O'Hare Intl
18h 15m
1 stop
BRU9:25 pmBrussels Bruxelles-National
Sep 23
BRU2:55 pmBrussels Bruxelles-National
25h 45m
1 stop
ORD9:40 amChicago O'Hare Intl
$726
Turkish Airlines
Sep 16
ORD8:10 pmChicago O'Hare Intl
18h 15m
1 stop
BRU9:25 pmBrussels Bruxelles-National
Sep 23
BRU2:55 pmBrussels Bruxelles-National
25h 45m
1 stop
ORD9:40 amChicago O'Hare Intl
$729

Delta flights from Illinois to Brussels Bruxelles-National Airport

Our best Delta deals on Illinois to Brussels Bruxelles-National Airport flight tickets
Delta
Dec 1
MDW11:28 amChicago Midway
16h 32m
1 stop
BRU11:00 amBrussels Bruxelles-National
Dec 9
BRU12:55 pmBrussels Bruxelles-National
17h 01m
1 stop
MDW10:56 pmChicago Midway
$797
Delta
Dec 1
MDW1:22 pmChicago Midway
14h 38m
2 stops
BRU11:00 amBrussels Bruxelles-National
Dec 9
BRU12:55 pmBrussels Bruxelles-National
17h 01m
1 stop
MDW10:56 pmChicago Midway
$801
Delta
Nov 9
MDW12:30 pmChicago Midway
14h 40m
2 stops
BRU10:10 amBrussels Bruxelles-National
Nov 20
BRU12:55 pmBrussels Bruxelles-National
17h 01m
1 stop
MDW10:56 pmChicago Midway
$805

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Brussels Bruxelles-National Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 5, 2026.
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

Cheapest round-trip

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 1/22

1:20 pm-9:35 am

2 stops13h 15m

Brussels Bruxelles-National

Fri 1/29

10:15 am-8:00 pm

2 stops16h 45m

$510
Quickest round-trip

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 12/9

6:30 pm-11:55 am

1 stop10h 25m

Brussels Bruxelles-National

Sun 12/20

12:50 pm-5:20 pm

1 stop11h 30m

$549

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 10/31

7:30 pm-11:55 am

1 stop10h 25m

Brussels Bruxelles-National

Sun 11/8

12:50 pm-5:20 pm

1 stop11h 30m

$552

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 9/16

8:10 pm-9:25 pm

1 stop18h 15m

Brussels Bruxelles-National

Wed 9/23

2:55 pm-9:40 am

1 stop25h 45m

$690

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 12/2

7:00 pm-5:05 pm

1 stop15h 05m

Brussels Bruxelles-National

Wed 12/9

6:00 am-3:30 pm

1 stop16h 30m

$697

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Thu 10/15

6:00 pm-8:05 pm

1 stop19h 05m

Brussels Bruxelles-National

Tue 10/27

5:55 pm-4:30 pm

1 stop28h 35m

$698

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 10/3

7:25 pm-12:55 pm

1 stop10h 30m

Brussels Bruxelles-National

Sun 10/18

7:35 pm-6:15 pm

3 stops29h 40m

$701

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 10/10

7:25 pm-12:55 pm

1 stop10h 30m

Brussels Bruxelles-National

Wed 10/21

7:35 pm-6:15 pm

3 stops29h 40m

$705

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 9/16

8:10 pm-9:25 pm

1 stop18h 15m

Brussels Bruxelles-National

Wed 9/23

2:55 pm-9:40 am

1 stop25h 45m

$707

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 1/22

1:20 pm-9:35 am

2 stops13h 15m

Brussels Bruxelles-National

Fri 1/29

10:15 am-7:15 pm

1 stop16h 00m

$798

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

The cheapest month to fly to Brussels Bruxelles-National Airport from Illinois is in April. Flight prices, which tend to average around $647, 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 November instead. Flights to Brussels Bruxelles-National Airport in November, while not as cheap as those in April, still average around $663.

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 $1,110. 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 $1,420.

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 $1,233. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,277 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 from Illinois 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 $862 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 $591 on momondo.

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

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

$764

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 $764. The best round-trip flight deal from Illinois to Brussels Bruxelles-National Airport found on momondo in the last 72 hours is $1,233.
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

Frequently asked questions about flying from Illinois to Brussels Bruxelles-National Airport

  • 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?

  • 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?

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
IcelandairPriceFrom $418Free CancellationRating
7.0
721 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $444Free CancellationRating
7.2
2,357 reviews
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesPriceFrom $468Free CancellationRating
7.4
1,923 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom $531Free CancellationRating
7.3
1,689 reviews
Search Aer Lingus flights
Turkish AirlinesPriceFrom $582Free CancellationRating
7.4
4,465 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $692Free CancellationRating
7.4
10,059 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $752Free CancellationRating
7.3
431 reviews
Search Brussels Airlines flights
LufthansaPriceFrom $969Free CancellationRating
6.8
8,177 reviews
Search Lufthansa flights

Traveling to a place near Brussels?

Book flights to Brussels if you plan to visit one of these locations
Bruges
Ghent
Leuven
Dinant
Mons
Durbuy
Zaventem
Charleroi
Genk
Hasselt
Waterloo
Aalst
Namur
Knokke-Heist
Spa
Mechelen
Tournai
Francorchamps
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.

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