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Cheap flights from Chicago to Brussels from $254

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Brussels departing on 1/8. 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
0 bags

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Find the cheapest flights from Chicago to Brussels

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:20 pm - 10:50 am
ORD
-
BRU
32h 30m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pm
BRU
-
ORD
13h 25m1 stop
$452Scandinavian Airlines
Wed, Jan 21 - Mon, Feb 9
Scandinavian Airlines Logo
7:10 pm - 11:55 am
ORD
-
BRU
33h 45m2 stops
Scandinavian Airlines Logo
8:30 pm - 4:45 pm
BRU
-
ORD
27h 15m1 stop
$455Scandinavian Airlines
Fri, Jan 30 - Fri, Feb 6
TAP AIR PORTUGAL Logo
7:10 pm - 5:05 pm
ORD
-
BRU
14h 55m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 3:25 pm
BRU
-
ORD
16h 25m1 stop
$458TAP AIR PORTUGAL
Wed, Jan 28 - Fri, Feb 6
TAP AIR PORTUGAL Logo
7:10 pm - 11:50 pm
ORD
-
BRU
21h 40m1 stop
TAP AIR PORTUGAL Logo
6:00 am - 3:00 pm
BRU
-
ORD
16h 00m1 stop
$462TAP AIR PORTUGAL
Wed, Jan 28 - Wed, Feb 4
Multiple Airlines Logo
3:35 pm - 6:35 pm
ORD
-
CRL
20h 00m2 stops
Multiple Airlines Logo
7:25 am - 8:10 pm
CRL
-
ORD
19h 45m2 stops
$611Multiple Airlines
Thu, Jan 15 - Thu, Jan 22
Multiple Airlines Logo
7:10 pm - 4:05 pm
ORD
-
CRL
13h 55m1 stop
Multiple Airlines Logo
7:00 am - 3:00 pm
CRL
-
ORD
15h 00m1 stop
$624Multiple Airlines
Wed, Jan 28 - Wed, Feb 4
Delta Logo
12:47 pm - 8:00 am
MDW
-
BRU
13h 13m1 stop
Delta Logo
9:45 am - 4:53 pm
BRU
-
MDW
14h 08m1 stop
$767Delta
Sun, Mar 15 - Thu, Apr 2
Delta Logo
9:32 am - 8:00 am
MDW
-
BRU
16h 28m2 stops
Delta Logo
9:45 am - 4:53 pm
BRU
-
MDW
14h 08m1 stop
$771Delta
Wed, Mar 18 - Tue, Mar 31
KLM Logo
5:38 pm - 8:00 am
MDW
-
BRU
32h 22m1 stop
KLM Logo
9:45 am - 4:53 pm
BRU
-
MDW
14h 08m1 stop
$774KLM
Tue, Mar 17 - Tue, Mar 31
KLM Logo
1:09 pm - 7:35 am
MDW
-
BRU
12h 26m2 stops
KLM Logo
9:45 am - 4:53 pm
BRU
-
MDW
14h 08m1 stop
$777KLM
Tue, Mar 17 - Tue, Mar 31

Turkish Airlines flights from Chicago to Brussels

Our best Turkish Airlines deals on Chicago to Brussels flight tickets
Turkish Airlines
Feb 3
ORD8:20 pmChicago O'Hare Intl
31h 15m
1 stop
BRU10:35 amBrussels Bruxelles-National
Feb 17
BRU6:20 pmBrussels Bruxelles-National
22h 45m
1 stop
ORD10:05 amChicago O'Hare Intl
$540
Find similar
Turkish Airlines
Mar 18
ORD12:50 pmChicago O'Hare Intl
27h 20m
1 stop
BRU10:10 pmBrussels Bruxelles-National
Mar 31
BRU7:20 amBrussels Bruxelles-National
33h 20m
1 stop
ORD9:40 amChicago O'Hare Intl
$549
Find similar
Turkish Airlines
Dec 30
ORD11:50 amChicago O'Hare Intl
19h 25m
1 stop
BRU2:15 pmBrussels Bruxelles-National
Jan 2
BRU7:50 amBrussels Bruxelles-National
17h 35m
1 stop
ORD6:25 pmChicago O'Hare Intl
$1,337
Find similar

Scandinavian Airlines flights from Chicago to Brussels

Our best Scandinavian Airlines deals on Chicago to Brussels flight tickets
Scandinavian Airlines
Jan 30
ORD7:10 pmChicago O'Hare Intl
33h 45m
2 stops
BRU11:55 amBrussels Bruxelles-National
Feb 6
BRU8:30 pmBrussels Bruxelles-National
27h 15m
1 stop
ORD4:45 pmChicago O'Hare Intl
$455
Find similar
Scandinavian Airlines
Jan 26
ORD7:20 pmChicago O'Hare Intl
32h 30m
2 stops
BRU10:50 amBrussels Bruxelles-National
Feb 1
BRU10:20 amBrussels Bruxelles-National
13h 35m
1 stop
ORD4:55 pmChicago O'Hare Intl
$457
Find similar
Scandinavian Airlines
Feb 23
ORD7:20 pmChicago O'Hare Intl
32h 30m
2 stops
BRU10:50 amBrussels Bruxelles-National
Feb 26
BRU7:15 pmBrussels Bruxelles-National
28h 30m
1 stop
ORD4:45 pmChicago O'Hare Intl
$459
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Brussels 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 December 16, 2025.
Use the filters below to find and compare flights from Chicago to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 1/21

7:20 pm-10:50 am

2 stops32h 30m

Brussels Bruxelles-National

Mon 2/9

10:20 am-4:45 pm

1 stop13h 25m

$452

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 1/30

7:10 pm-11:55 am

2 stops33h 45m

Brussels Bruxelles-National

Fri 2/6

8:30 pm-4:45 pm

1 stop27h 15m

$455

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 1/28

7:10 pm-5:05 pm

1 stop14h 55m

Brussels Bruxelles-National

Fri 2/6

6:00 am-3:25 pm

1 stop16h 25m

$458

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 1/28

7:10 pm-11:50 pm

1 stop21h 40m

Brussels Bruxelles-National

Wed 2/4

6:00 am-3:00 pm

1 stop16h 00m

$462

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Thu 1/15

3:35 pm-6:35 pm

2 stops20h 00m

Charleroi Brussels

Thu 1/22

7:25 am-8:10 pm

2 stops19h 45m

$611

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Wed 1/28

7:10 pm-4:05 pm

1 stop13h 55m

Charleroi Brussels

Wed 2/4

7:00 am-3:00 pm

1 stop15h 00m

$624

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Sun 3/15

12:47 pm-8:00 am

1 stop13h 13m

Brussels Bruxelles-National

Thu 4/2

9:45 am-4:53 pm

1 stop14h 08m

$767

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Wed 3/18

9:32 am-8:00 am

2 stops16h 28m

Brussels Bruxelles-National

Tue 3/31

9:45 am-4:53 pm

1 stop14h 08m

$771

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Tue 3/17

5:38 pm-8:00 am

1 stop32h 22m

Brussels Bruxelles-National

Tue 3/31

9:45 am-4:53 pm

1 stop14h 08m

$774

ChicagoBrussels

MDW - BRU

MDWBRU

Chicago Midway

Tue 3/17

1:09 pm-7:35 am

2 stops12h 26m

Brussels Bruxelles-National

Tue 3/31

9:45 am-4:53 pm

1 stop14h 08m

$777

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Brussels from

How to get the cheapest flight ticket from Chicago to Brussels

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 typical price of a round-trip flight between Chicago and Brussels?

What is the cheapest month to fly to Brussels?

In general, January is the cheapest month to fly from Chicago to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $499. If you are unable to visit Brussels during the month of January, then departing from Chicago during the month April is also very affordable. Most momondo users find prices during this month for around $579.

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

On average, the least expensive day to fly to Brussels from Chicago is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,083. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,308.

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

According to our data, the cheapest time of day to fly to Brussels is in the evening. momondo users have found flights departing from Chicago to Brussels in the evening for as low as $579. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $1,190.

What is the cheapest Chicago to Brussels flight route?

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

How far in advance should I book a flight to Brussels?

You are more likely to see cheaper flights to Brussels from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around $763 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from Chicago for as low as $486 on momondo.

What cabin class options are available on Chicago to Brussels flights?

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

Cheap Chicago to Brussels flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Brussels

Fastest flight time

8h 00m

Direct flights

Every day

Airports in Brussels

2 airports
The fastest flight from Chicago to Brussels takes 8h 00m
Direct flights go from Chicago to Brussels every day.
There are 2 airports in Brussels. From Chicago there are direct flights to Brussels Bruxelles-National (BRU).
Search flight deals

  • How far is Chicago to Brussels by plane?

    The distance between Chicago and Brussels is about 4136.1 mi. By plane, this route typically takes 8h 00m.

  • When did momondo last update prices for flights from Chicago to Brussels?

    Prices for flights from Chicago to Brussels refresh daily.

  • How many operators does momondo search for flights from Chicago to Brussels?

  • How old do you have to be to fly from Chicago to Brussels?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Brussels.

  • What documentation or ID do you need to fly to Brussels?

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

Best airlines flying from Chicago to Brussels

Compare and see reviews for airlines that fly from Chicago to Brussels with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $298Free CancellationRating
7.4
1,606 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $428Free CancellationRating
7.0
591 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $445Free CancellationRating
7.2
2,091 reviews
Search TAP AIR PORTUGAL flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
4,104 reviews
Search Turkish Airlines flights
Aer LingusPriceFrom $536Free CancellationRating
7.2
1,395 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $551Free CancellationRating
6.7
7,583 reviews
Search British Airways flights
United AirlinesPriceFrom $590Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Brussels. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Brussels from Chicago.

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

Yes momondo offers price alerts on flights to Brussels from Chicago. 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.

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Find better results for your trip to Belgium

Fly into one of these airports located in Brussels

Airports listed have a maximum distance of 27.4 mi from Brussels
Brussels Bruxelles-National Airport
Charleroi Brussels Airport