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Cheap flights from Chicago O'Hare Intl Airport to Brussels from $227

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 O'Hare Intl Airport to Brussels departing on 2/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Brussels

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
6:30 pm - 11:55 amORD-BRU
10h 25m1 stop
Icelandair Logo
12:50 pm - 5:20 pmBRU-ORD
11h 30m1 stop
$392Icelandair
Find Deal
Wed, Jan 28 - Fri, Feb 6
Scandinavian Airlines Logo
7:05 am - 9:40 amORD-BRU
19h 35m2 stops
Scandinavian Airlines Logo
7:20 pm - 4:45 pmBRU-ORD
28h 25m2 stops
$410Scandinavian Airlines
Find Deal
Mon, Jan 12 - Tue, Jan 20
Icelandair Logo
7:25 pm - 12:50 pmORD-BRU
10h 25m1 stop
Icelandair Logo
1:50 pm - 6:15 pmBRU-ORD
11h 25m1 stop
$412Icelandair
Find Deal
Wed, Apr 8 - Thu, Apr 16
Icelandair Logo
7:25 pm - 12:50 pmORD-BRU
10h 25m1 stop
Icelandair Logo
1:50 pm - 6:15 pmBRU-ORD
11h 25m1 stop
$415Icelandair
Find Deal
Sun, Apr 26 - Sat, May 9
Icelandair Logo
7:25 pm - 12:50 pmORD-BRU
10h 25m1 stop
Icelandair Logo
1:50 pm - 6:15 pmBRU-ORD
11h 25m1 stop
$419Icelandair
Find Deal
Fri, Apr 24 - Wed, May 6
Scandinavian Airlines Logo
10:36 am - 2:30 pmORD-BRU
20h 54m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$420Scandinavian Airlines
Find Deal
Mon, Feb 16 - Mon, Feb 23
Scandinavian Airlines Logo
7:05 am - 9:40 amORD-BRU
19h 35m2 stops
Scandinavian Airlines Logo
7:20 pm - 4:45 pmBRU-ORD
28h 25m2 stops
$426Scandinavian Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20
Icelandair Logo
7:25 pm - 12:50 pmORD-BRU
10h 25m1 stop
Icelandair Logo
1:50 pm - 9:40 pmBRU-ORD
14h 50m1 stop
$435Icelandair
Find Deal
Sat, Apr 4 - Fri, Apr 17
Scandinavian Airlines Logo
10:11 am - 2:30 pmORD-BRU
21h 19m2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pmBRU-ORD
13h 25m1 stop
$437Scandinavian Airlines
Find Deal
Tue, Feb 17 - Mon, Feb 23
Multiple Airlines Logo
3:35 pm - 8:55 pmORD-CRL
22h 20m2 stops
Multiple Airlines Logo
8:10 am - 8:10 pmCRL-ORD
19h 00m2 stops
$587Multiple Airlines
Find Deal
Tue, Jan 13 - Tue, Jan 20

Scandinavian Airlines flights from Chicago O'Hare Intl Airport to Brussels

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to Brussels flight tickets
Scandinavian Airlines
Jan 12
ORD7:05 amChicago O'Hare Intl
19h 35m
2 stops
BRU9:40 amBrussels Bruxelles-National
Jan 20
BRU7:20 pmBrussels Bruxelles-National
28h 25m
2 stops
ORD4:45 pmChicago O'Hare Intl
$410
Find similar
Scandinavian Airlines
Feb 16
ORD10:36 amChicago O'Hare Intl
20h 54m
2 stops
BRU2:30 pmBrussels Bruxelles-National
Feb 23
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD4:45 pmChicago O'Hare Intl
$420
Find similar
Scandinavian Airlines
Jan 13
ORD7:05 amChicago O'Hare Intl
19h 35m
2 stops
BRU9:40 amBrussels Bruxelles-National
Jan 20
BRU7:20 pmBrussels Bruxelles-National
28h 25m
2 stops
ORD4:45 pmChicago O'Hare Intl
$426
Find similar

TAP AIR PORTUGAL flights from Chicago O'Hare Intl Airport to Brussels

Our best TAP AIR PORTUGAL deals on Chicago O'Hare Intl Airport to Brussels flight tickets
TAP AIR PORTUGAL
Nov 28
ORD8:15 pmChicago O'Hare Intl
20h 35m
1 stop
BRU11:50 pmBrussels Bruxelles-National
Dec 7
BRU6:00 amBrussels Bruxelles-National
15h 45m
1 stop
ORD2:45 pmChicago O'Hare Intl
$459
Find similar
TAP AIR PORTUGAL
Nov 28
ORD8:15 pmChicago O'Hare Intl
20h 35m
1 stop
BRU11:50 pmBrussels Bruxelles-National
Dec 7
BRU6:00 amBrussels Bruxelles-National
15h 45m
1 stop
ORD2:45 pmChicago O'Hare Intl
$460
Find similar
TAP AIR PORTUGAL
Nov 28
ORD8:15 pmChicago O'Hare Intl
20h 35m
1 stop
BRU11:50 pmBrussels Bruxelles-National
Dec 7
BRU6:00 amBrussels Bruxelles-National
15h 45m
1 stop
ORD2:45 pmChicago O'Hare Intl
$472
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 November 19, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Brussels that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 1/28

6:30 pm-11:55 am

1 stop10h 25m

Brussels Bruxelles-National

Fri 2/6

12:50 pm-5:20 pm

1 stop11h 30m

$392

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 1/12

7:05 am-9:40 am

2 stops19h 35m

Brussels Bruxelles-National

Tue 1/20

7:20 pm-4:45 pm

2 stops28h 25m

$410

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 4/8

7:25 pm-12:50 pm

1 stop10h 25m

Brussels Bruxelles-National

Thu 4/16

1:50 pm-6:15 pm

1 stop11h 25m

$412

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 4/26

7:25 pm-12:50 pm

1 stop10h 25m

Brussels Bruxelles-National

Sat 5/9

1:50 pm-6:15 pm

1 stop11h 25m

$415

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Fri 4/24

7:25 pm-12:50 pm

1 stop10h 25m

Brussels Bruxelles-National

Wed 5/6

1:50 pm-6:15 pm

1 stop11h 25m

$419

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Mon 2/16

10:36 am-2:30 pm

2 stops20h 54m

Brussels Bruxelles-National

Mon 2/23

10:20 am-4:45 pm

1 stop13h 25m

$420

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 1/13

7:05 am-9:40 am

2 stops19h 35m

Brussels Bruxelles-National

Tue 1/20

7:20 pm-4:45 pm

2 stops28h 25m

$426

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 4/4

7:25 pm-12:50 pm

1 stop10h 25m

Brussels Bruxelles-National

Fri 4/17

1:50 pm-9:40 pm

1 stop14h 50m

$435

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Tue 2/17

10:11 am-2:30 pm

2 stops21h 19m

Brussels Bruxelles-National

Mon 2/23

10:20 am-4:45 pm

1 stop13h 25m

$437

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Tue 1/13

3:35 pm-8:55 pm

2 stops22h 20m

Charleroi Brussels

Tue 1/20

8:10 am-8:10 pm

2 stops19h 00m

$587

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 O'Hare Intl Airport 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 O'Hare Intl Airport and Brussels?

What is the cheapest month to fly to Brussels?

In general, October is the cheapest month to fly from Chicago O'Hare Intl Airport to Brussels. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $509. If you are unable to visit Brussels during the month of October, then departing from Chicago O'Hare Intl Airport during the month September is also very affordable. Most momondo users find prices during this month for around $515.

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

On average, the least expensive day to fly to Brussels from Chicago O'Hare Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,106. 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 O'Hare Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,400.

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 O'Hare Intl Airport 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 $1,208.

What is the cheapest Chicago O'Hare Intl to Brussels flight route?

Fly from Chicago O'Hare Intl to Brussels Bruxelles-National for the best Chicago O'Hare Intl - 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 O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Brussels for around $764 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Brussels from Chicago O'Hare Intl Airport for as low as $486 on momondo.

What cabin class options are available on Chicago O'Hare Intl to Brussels flights?

There are 3 cabin classes available to choose from on Chicago O'Hare Intl 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 O'Hare Intl Airport to Brussels flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Brussels

Fastest flight time

8h 00m

Direct flights

Every day

Airports in Brussels

1 airport
The fastest flight from Chicago O'Hare Intl Airport to Brussels takes 8h 00m
Direct flights go from Chicago O'Hare Intl Airport to Brussels every day.
There is 1 airport near Brussels: Brussels Bruxelles-National (BRU)
Search flight deals

  • How far is Chicago O'Hare Intl to Brussels by plane?

    The straight-line distance from Chicago O'Hare Intl to Brussels is 4141.6 mi. By plane, this route typically takes 10h 25m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Brussels?

    Prices for flights from Chicago O'Hare Intl Airport to Brussels are updated daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Brussels?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Brussels?

    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 Chicago O'Hare Intl Airport to Brussels.

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

    The required travel and health documents for your Brussels trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Brussels. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Chicago O'Hare Intl Airport to Brussels

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Brussels with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $310Free CancellationRating
7.4
1,583 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $428Free CancellationRating
7.0
581 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $492Free CancellationRating
7.3
4,045 reviews
Search Turkish Airlines flights
Aer LingusPriceFrom $536Free CancellationRating
7.2
1,377 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $551Free CancellationRating
6.7
7,534 reviews
Search British Airways flights
United AirlinesPriceFrom $639Free CancellationRating
7.4
9,023 reviews
Search United Airlines flights
LufthansaPriceFrom $725Free CancellationRating
6.8
7,579 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $744Free CancellationRating
7.1
2,067 reviews
Search TAP AIR PORTUGAL flights

Why use momondo?

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

It is quick and easy to find Chicago to Brussels flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Brussels that suits you.

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

Yes. All flights to Brussels from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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 can track prices for Chicago to Brussels flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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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