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Cheap flights from Chicago O'Hare Intl Airport to Brussels from $323

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 7/21. 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

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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.
Scandinavian Airlines Logo
7:15 pm - 11:00 pm
ORD
-
BRU
20h 45m
1 stop
Scandinavian Airlines Logo
5:45 am - 4:10 pm
BRU
-
ORD
17h 25m
1 stop
$625Scandinavian Airlines
Sat, Oct 10 - Wed, Oct 14
Scandinavian Airlines Logo
8:15 pm - 6:35 pm
ORD
-
BRU
16h 20m
1 stop
Scandinavian Airlines Logo
7:00 pm - 4:45 pm
BRU
-
ORD
28h 45m
2 stops
$629Scandinavian Airlines
Wed, Oct 28 - Wed, Nov 11
Scandinavian Airlines Logo
7:15 pm - 6:20 pm
ORD
-
BRU
16h 05m
2 stops
Scandinavian Airlines Logo
10:20 am - 4:10 pm
BRU
-
ORD
12h 50m
1 stop
$634Scandinavian Airlines
Sat, Oct 17 - Fri, Oct 23
Scandinavian Airlines Logo
8:15 pm - 6:40 pm
ORD
-
BRU
16h 25m
2 stops
Scandinavian Airlines Logo
7:00 pm - 4:45 pm
BRU
-
ORD
28h 45m
2 stops
$635Scandinavian Airlines
Wed, Oct 28 - Wed, Nov 11
Scandinavian Airlines Logo
7:15 pm - 2:35 pm
ORD
-
BRU
12h 20m
1 stop
Scandinavian Airlines Logo
5:45 am - 4:10 pm
BRU
-
ORD
17h 25m
1 stop
$636Scandinavian Airlines
Sat, Oct 17 - Fri, Oct 23
Scandinavian Airlines Logo
7:15 pm - 6:40 pm
ORD
-
BRU
16h 25m
2 stops
Scandinavian Airlines Logo
10:20 am - 4:45 pm
BRU
-
ORD
13h 25m
1 stop
$637Scandinavian Airlines
Wed, Nov 25 - Sun, Dec 6
Scandinavian Airlines Logo
7:15 pm - 2:35 pm
ORD
-
BRU
12h 20m
1 stop
Scandinavian Airlines Logo
10:20 am - 4:10 pm
BRU
-
ORD
12h 50m
1 stop
$640Scandinavian Airlines
Sun, Oct 18 - Wed, Oct 21
Scandinavian Airlines Logo
7:15 pm - 11:00 pm
ORD
-
BRU
20h 45m
1 stop
Scandinavian Airlines Logo
10:20 am - 4:10 pm
BRU
-
ORD
12h 50m
1 stop
$654Scandinavian Airlines
Sat, Oct 3 - Wed, Oct 14
Multiple Airlines Logo
3:45 pm - 8:25 am
ORD
-
CRL
33h 40m
1 stop
Multiple Airlines Logo
10:00 pm - 5:50 pm
CRL
-
ORD
26h 50m
2 stops
$790Multiple Airlines
Mon, Aug 17 - Fri, Sep 4
Multiple Airlines Logo
3:45 pm - 8:25 am
ORD
-
CRL
33h 40m
1 stop
Multiple Airlines Logo
7:05 pm - 7:15 pm
CRL
-
ORD
31h 10m
2 stops
$804Multiple Airlines
Mon, Aug 17 - Thu, Aug 27

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
Oct 26
ORD8:15 pmChicago O'Hare Intl
12h 15m
1 stop
BRU2:30 pmBrussels Bruxelles-National
Oct 29
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD5:45 pmChicago O'Hare Intl
$625
Scandinavian Airlines
Oct 26
ORD8:15 pmChicago O'Hare Intl
16h 05m
2 stops
BRU6:20 pmBrussels Bruxelles-National
Oct 29
BRU10:20 amBrussels Bruxelles-National
13h 25m
1 stop
ORD5:45 pmChicago O'Hare Intl
$629
Scandinavian Airlines
Oct 17
ORD7:15 pmChicago O'Hare Intl
16h 05m
2 stops
BRU6:20 pmBrussels Bruxelles-National
Oct 23
BRU10:20 amBrussels Bruxelles-National
12h 50m
1 stop
ORD4:10 pmChicago O'Hare Intl
$634

Air Canada flights from Chicago O'Hare Intl Airport to Brussels

Our best Air Canada deals on Chicago O'Hare Intl Airport to Brussels flight tickets
Air Canada
Jun 9
ORD7:25 amChicago O'Hare Intl
16h 45m
3 stops
BRU7:10 amBrussels Bruxelles-National
Jun 15
BRU9:40 amBrussels Bruxelles-National
17h 36m
3 stops
ORD8:16 pmChicago O'Hare Intl
$982
Air Canada
Jun 5
ORD7:25 amChicago O'Hare Intl
16h 45m
3 stops
BRU7:10 amBrussels Bruxelles-National
Jun 11
BRU9:40 amBrussels Bruxelles-National
12h 10m
1 stop
ORD2:50 pmChicago O'Hare Intl
$1,107
Air Canada
Jun 5
ORD7:25 amChicago O'Hare Intl
16h 45m
3 stops
BRU7:10 amBrussels Bruxelles-National
Jun 11
BRU9:40 amBrussels Bruxelles-National
17h 36m
2 stops
ORD8:16 pmChicago O'Hare Intl
$1,113

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 June 4, 2026.
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

Cheapest round-trip

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 10/10

7:15 pm-11:00 pm

1 stop20h 45m

Brussels Bruxelles-National

Wed 10/14

5:45 am-4:10 pm

1 stop17h 25m

$625

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 10/28

8:15 pm-6:35 pm

1 stop16h 20m

Brussels Bruxelles-National

Wed 11/11

7:00 pm-4:45 pm

2 stops28h 45m

$629

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 10/17

7:15 pm-6:20 pm

2 stops16h 05m

Brussels Bruxelles-National

Fri 10/23

10:20 am-4:10 pm

1 stop12h 50m

$634

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 10/28

8:15 pm-6:40 pm

2 stops16h 25m

Brussels Bruxelles-National

Wed 11/11

7:00 pm-4:45 pm

2 stops28h 45m

$635

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 10/17

7:15 pm-2:35 pm

1 stop12h 20m

Brussels Bruxelles-National

Fri 10/23

5:45 am-4:10 pm

1 stop17h 25m

$636

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Wed 11/25

7:15 pm-6:40 pm

2 stops16h 25m

Brussels Bruxelles-National

Sun 12/6

10:20 am-4:45 pm

1 stop13h 25m

$637
Quickest round-trip

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sun 10/18

7:15 pm-2:35 pm

1 stop12h 20m

Brussels Bruxelles-National

Wed 10/21

10:20 am-4:10 pm

1 stop12h 50m

$640

ChicagoBrussels

ORD - BRU

ORDBRU

Chicago O'Hare Intl

Sat 10/3

7:15 pm-11:00 pm

1 stop20h 45m

Brussels Bruxelles-National

Wed 10/14

10:20 am-4:10 pm

1 stop12h 50m

$654

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Mon 8/17

3:45 pm-8:25 am

1 stop33h 40m

Charleroi Brussels

Fri 9/4

10:00 pm-5:50 pm

2 stops26h 50m

$790

ChicagoBrussels

ORD - CRL

ORDCRL

Chicago O'Hare Intl

Mon 8/17

3:45 pm-8:25 am

1 stop33h 40m

Charleroi Brussels

Thu 8/27

7:05 pm-7:15 pm

2 stops31h 10m

$804

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, May 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 $129. If you are unable to visit Brussels during the month of May, then departing from Chicago O'Hare Intl Airport during the month January is also very affordable. Most momondo users find prices during this month for around $377.

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 $1,046. 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 $1,373.

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 from Chicago O'Hare Intl Airport 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 $787 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 $477 on momondo.

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

There are 3 cabin classes available to choose from on Chicago O'Hare Intl Airport 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

2 airports
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 are 2 airports in Brussels. From Chicago O'Hare Intl Airport there are direct flights to Brussels Bruxelles-National (BRU).
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Brussels

  • 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 8h 00m.

  • 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
IcelandairPriceFrom $418Free CancellationRating
7.0
665 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom $444Free CancellationRating
7.2
2,272 reviews
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesPriceFrom $448Free CancellationRating
7.4
1,806 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom $531Free CancellationRating
7.3
1,595 reviews
Search Aer Lingus flights
Turkish AirlinesPriceFrom $582Free CancellationRating
7.4
4,409 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $642Free CancellationRating
7.4
9,778 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $752Free CancellationRating
7.2
409 reviews
Search Brussels Airlines flights
LufthansaPriceFrom $969Free CancellationRating
6.8
8,036 reviews
Search Lufthansa 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